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The authors systematically describe the general principles of Kolsky bars, or split Hopkinson bars, which are widely used for obtaining dynamic material properties. Modifications are introduced for obtaining reliable data. Specific experiment design guidelines are provided to subject the specimen to desired testing conditions.
Detailed Kolsky-bar examples are given for different classes of materials (brittle, ductile, soft, etc) and for different loading conditions (tension, torsion, triaxial, high/low temperatures, intermediate strain rate, etc). The Kolsky bars used for dynamic structural characterization are briefly introduced. A collection of dynamic properties of various materials under various testing conditions is included which may serve as a reference database.
This book assists both beginners and experienced professionals in characterizing high-rate material response with high quality and consistency. Readers who may benefit from this work include university students, instructors, R & D professionals, and scholars/engineers in solid mechanics, aerospace, civil and mechanical engineering, as well as materials science and engineering.
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Herein, "the harmony among and within the human groups"will be discussed theoretically. The "harmony" mentioned here refers to the state in which the group members are in their own proper place, get along with one another peacefully, and occasional conflicts among them can get resolved in a timely manner. Meanwhile, the root causes of conflicts among and within the human groups are also analyzed, and against which possible theoretical solutions are proposed --- The human group members should advocate positive energy as the authority, remain conscientious, and believe in love. Some of the author''s what-if analyses herein are intended to urge people to be conscientious and obedient to rules. And the deep-seated causes which result in an imbalance of social order are explored herein, for which the original intention is to, by presenting facts and evidence, prove that people''s conscience and self-discipline are the cornerstones of social order while spiritual belief is the foundation for people to stick to their conscience. People should always be in awe and do good deeds as possible they could. And only in this way can society, from the family level to the country level, be harmonious. Such theoretical exploration is believed by the author to be conducive to creating a social atmosphere filled with integrity, friendliness, and harmony.
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Dynamic Behavior of Materials, Volume 1: Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics, the first volume of eight from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Experimental Mechanics, including papers on:
General Dynamic Material Properties
Novel Dynamic Testing Techniques
Dynamic Fracture and Failure
Novel Testing Techniques
Dynamic Behavior of Geo-materials
Dynamic Behavior of Biological and Biomimetic Materials
Dynamic Behavior of Composites and Multifunctional Materials
Dynamic Behavior of Low-Impedance materials
Multi-scale Modeling of Dynamic Behavior of Materials
Quantitative Visualization of Dynamic Behavior of Materials
Shock/Blast Loading of Materials
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Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics, the first volume of eight from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Experimental Mechanics, including papers on:
· General Dynamic Materials Response
· Novel Dynamic Testing Techniques
· Dynamic Fracture and Failure
· Dynamic Behavior of Geo-materials
· Dynamic Behavior of Composites and Multifunctional materials
· Dynamic Behavior of Low-Impedance materials
· Dynamic Modeling and Simulation of Dynamic Behavior of Materials
· Quantitative Visualization of Dynamic Behavior of Materials
· Shock/Blast Loading of Materials
· Interface and Structural Dynamics
· Material Response
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