Abstract
We provide a modeling method of strain rate dependent material which derived from force-displacement relationships for strain rates measured by high speed tensile tests. The strain dependent material model consists of a stress-strain rate relationship in low strain rate, a stress-strain rate elationship in high strain rate and a stress-strain relationship in large strain. To evaluate the modeling method, high speed tensile tests, the material modeling with test result and simulations of high speed tensile test with the material model were carried out. Then it found that the force-displacement relationships of analysis match to those of tests.
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