Our overall hypothesis is that an adverse biologic response to protracted high mechanical loads compromises osteocyte-mediated perilacunar remodeling (PLR), bone quality, and cartilage health in post-traumatic osteoarthritis (PTOA). Few molecular details are known about the regulation of PLR or bone quality in healthy bone or in disease. Therefore, we will test the hypothesis that mechanical load and TGF signaling interact to regulate PLR, and that this regulation is impaired in,contributes to,...
Topics: DTIC Archive, Alliston,Tamara, University of California San Francisco San Francisco United States,...
Hat stringer pull-off tests were performed to evaluate the delamination failure mechanisms in the flange region for a rod-reinforced hat stringer section. A special test fixture was used to pull the hat off the stringer while reacting the pull-off load through roller supports at both stringer flanges. Microscopic examinations of the failed specimens revealed that failure occurred at the ply termination in the flange area where the flange of the stiffener is built up by adding 45/-45 tape plies...
Topics: DTIC Archive, Li,Jian, US Army Research Laboratory Aberdeen Proving Ground United States, composite...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The effect of sub-T (g) aging on the properties of an epoxy resin system, diglycidyl ether of butanediol, DGEB, cured with 4-4' diaminodiphenyl sulfone, DDS, has been studied. Aging was found to increase the DSC endothermic peak, the density and the upper field point, In contrast, the lower yield point was relatively unchanged. This result, together with the observation of the elimination of the DSC endothermic peak by deformation and the absence of a yield point after deformation suggested...
Topics: DTIC Archive, Chang,T -D, NORTHWESTERN UNIV EVANSTON IL MATERIALS RESEARCH CENTER,...
The overall purpose of this research is to determine the effects of fatigue, load carriage, and history of physical activity on the mechanical loading of the tibia and risk of tibial stress fracture. There are two specific aims in this study. The first aim is to determine the influences of fatigue and load carriage on gait mechanics and tibial loading. Twenty participants were recruited to perform walking in both fatigued and loaded conditions. CT scans of lower legs were obtained. Kinematic...
Topics: DTIC Archive, Wang,He, Ball State University Muncie United States, FATIGUE (PHYSIOLOGY), loads...
With this research we explore interfacial functionality in polymer matrix composites from sensing and monitoring of mechanical damage to the active control of interfacial phenomena, such as the transport of heat and mass. We use a combined computational and experimental approach. Structures generated using our simulation framework allow us to gain unprecedented insights into anomalous diffusion behavior of water in polyimides and reveal that non-bonding interactions play a more important role...
Topics: DTIC Archive, Kieffer,John, University of Michigan Ann Arbor United States, polymer matrix...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
Results of 'generation' (determination of dynamic stress-intensity factor variation with time, for a specified crack-propagation history) studies, as well as 'prediction' (determination of crack-propagation history for specified dynamic fracture toughness versus crack-velocity relationships) studies of dynamic crack propagation in plane-stress/strain situations are presented and discussed in detail. These studies were conducted by using a transient finite element method wherein the propagating...
Topics: DTIC Archive, Nishioka,T, GEORGIA INST OF TECH ATLANTA CENTER FOR THE ADVANCEMENT OF COMPUTATIONAL...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
The recent literature on embrittlement induced by solid or liquid metal environments is critically reviewed. Evidence in support of an enhanced shear model of embrittlement is provided for amorphous metals, while decohesion is shown to be a viable concept for crystalline metals. The usefulness of the concept of specificity of embrittlement is questioned on the basis of evidence for new embrittlement couples as the range of experimental conditions is varied. In particular, strain rate and...
Topics: DTIC Archive, Stoloff,Norman S, RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING,...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
A numerical method is described by which theoretical formulas governing the propagation of symmetric and antisymmetric waves in elastic plate theory may be evaluated. Vital to evaluating the formulas is the availability of a means for solving transcendental equations. A generalized iterative rootfinder that was developed for this purpose is described. This rootfinder provides the investigator having access to computing facilities with a reliable means for solving transcendental equations....
Topics: DTIC Archive, Ruggiero,C M, NAVAL RESEARCH LAB WASHINGTON DC, *ELASTIC PROPERTIES, *WAVE...
Special numerical techniques are described which permit productive utilization of digital filters in the analysis of ballistic data. Specific examples are given which demonstrate the use of these techniques. In the analysis of ballistic data such as pressure, strain, and acceleration, and the Fourier spectrum is an extremely useful tool. For nonreal-time data analysis, various numerical manipulations can be performed to enhance the applicability of Fourier techniques. These manipulations...
Topics: DTIC Archive, Walbert, James N, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
Special numerical techniques are described which permit productive utilization of digital filters in the analysis of ballistic data. Specific examples are given which demonstrate the use of these techniques. In the analysis of ballistic data such as pressure, strain, and acceleration, and the Fourier spectrum is an extremely useful tool. For nonreal-time data analysis, various numerical manipulations can be performed to enhance the applicability of Fourier techniques. These manipulations...
Topics: DTIC Archive, Walbert, James N, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
Special numerical techniques are described which permit productive utilization of digital filters in the analysis of ballistic data. Specific examples are given which demonstrate the use of these techniques. In the analysis of ballistic data such as pressure, strain, and acceleration, and the Fourier spectrum is an extremely useful tool. For nonreal-time data analysis, various numerical manipulations can be performed to enhance the applicability of Fourier techniques. These manipulations...
Topics: DTIC Archive, Walbert, James N, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
Special numerical techniques are described which permit productive utilization of digital filters in the analysis of ballistic data. Specific examples are given which demonstrate the use of these techniques. In the analysis of ballistic data such as pressure, strain, and acceleration, and the Fourier spectrum is an extremely useful tool. For nonreal-time data analysis, various numerical manipulations can be performed to enhance the applicability of Fourier techniques. These manipulations...
Topics: DTIC Archive, Walbert, James N, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
Special numerical techniques are described which permit productive utilization of digital filters in the analysis of ballistic data. Specific examples are given which demonstrate the use of these techniques. In the analysis of ballistic data such as pressure, strain, and acceleration, and the Fourier spectrum is an extremely useful tool. For nonreal-time data analysis, various numerical manipulations can be performed to enhance the applicability of Fourier techniques. These manipulations...
Topics: DTIC Archive, Walbert, James N, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
Special numerical techniques are described which permit productive utilization of digital filters in the analysis of ballistic data. Specific examples are given which demonstrate the use of these techniques. In the analysis of ballistic data such as pressure, strain, and acceleration, and the Fourier spectrum is an extremely useful tool. For nonreal-time data analysis, various numerical manipulations can be performed to enhance the applicability of Fourier techniques. These manipulations...
Topics: DTIC Archive, Walbert, James N, ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD,...
