Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7172911 | International Journal of Impact Engineering | 2018 | 13 Pages |
Abstract
In this study, a Johnson-Cook model was used as an example to analyze the relationship of compressive stress-strain response of engineering materials experimentally obtained at constant engineering and true strain rates. There was a minimal deviation between the stress-strain curves obtained at the same constant engineering and true strain rates. The stress-strain curves obtained at either constant engineering or true strain rates could be converted from one to the other, which both represented the intrinsic material response. There is no need to specify the testing requirement of constant engineering or true strain rates for material property characterization, provided that either constant engineering or constant true strain rate is attained during the experiment.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Bo Song, Brett Sanborn,