Effects of crystallographic texture directionality on the compressive stress–strain response of shape recovered polycrystalline nitinol

2010 ◽  
Vol 63 (3) ◽  
pp. 320-323 ◽  
Author(s):  
Matthew Fonte ◽  
Anil Saigal
Keyword(s):  
Compressive Stress ◽  
Crystallographic Texture ◽  
Strain Response ◽  
Stress Strain

Ferroelastic properties and compressive stress-strain response of bismuth titanate based ferroelectrics

2020 ◽  
Vol 46 (1) ◽  
pp. 1183-1188 ◽  
Author(s):  
Shaoxiong Xie ◽  
Zhi Tan ◽  
Laiming Jiang ◽  
Rui Nie ◽  
Qian Xu ◽  
...  
Keyword(s):  
Compressive Stress ◽  
Bismuth Titanate ◽  
Strain Response ◽  
Stress Strain

Polycrystalline plasticity and the evolution of crystallographic texture in FCC metals

1992 ◽  
Vol 341 (1662) ◽  
pp. 443-477 ◽  
Keyword(s):  
Finite Element ◽  
Crystallographic Texture ◽  
Single Phase ◽  
Type Model ◽  
Strain Response ◽  
Stress Strain ◽  
Fcc Metals ◽  
First Order ◽  
Finite Element Calculations ◽  
Simple Compression

A Taylor-type model for large deformation polycrystalline plasticity is formulated and evaluated by comparing the predictions for the evolution of crystallographic texture and the stress-strain response in simple compression and tension, plane strain compression, and simple shear of initially ‘isotropic’ OFHC copper against ( a ) corresponding experiments, and ( b ) finite element simulations of these experiments using a multitude of single crystals with accounting for the satisfaction of both compatibility and equilibrium. Our experiments and calculations show that the Taylor-type model is in reasonable first-order agreement with the experiments for the evolution of texture and the overall stress-strain response of single-phase copper. The results of the finite element calculations are in much better agreement with experiments, but at a substantially higher computational expense.

Mechanical Response of Human Muscle at Intermediate Strain Rates

2019 ◽  
Vol 141 (4) ◽  
Author(s):  
Xuedong Zhai ◽  
Eric A. Nauman ◽  
Yizhou Nie ◽  
Hangjie Liao ◽  
Roy J. Lycke ◽  
...  
Keyword(s):  
Strain Rate ◽  
Mechanical Behavior ◽  
Compressive Stress ◽  
Mechanical Response ◽  
Human Muscle ◽  
Fiber Direction ◽  
Strain Rates ◽  
Strain Response ◽  
Stress Strain ◽  
Intermediate Strain Rates

We experimentally determined the tensile stress–strain response of human muscle along fiber direction and compressive stress–strain response transverse to fiber direction at intermediate strain rates (100–102/s). A hydraulically driven material testing system with a dynamic testing mode was used to perform the tensile and compressive experiments on human muscle tissue. Experiments at quasi-static strain rates (below 100/s) were also conducted to investigate the strain-rate effects over a wider range. The experimental results show that, at intermediate strain rates, both the human muscle's tensile and compressive stress–strain responses are nonlinear and strain-rate sensitive. Human muscle also exhibits a stiffer and stronger tensile mechanical behavior along fiber direction than its compressive mechanical behavior along the direction transverse to fiber direction. An Ogden model with two material constants was adopted to describe the nonlinear tensile and compressive behaviors of human muscle.

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