@article{(Open Science Index):https://publications.waset.org/pdf/9998030, title = {New Dynamic Constitutive Model for OFHC Copper Film}, author = {Jin Sung Kim and Hoon Huh}, country = {}, institution = {}, abstract = {The material properties of OFHC copper film was investigated with the High-Speed Material Micro Testing Machine (HSMMTM) at the high strain rates. The rate-dependent stress-strain curves from the experiment and the Johnson−Cook curve fitting showed large discrepancies as the plastic strain increases since the constitutive model implies no rate-dependent strain hardening effect. A new constitutive model was proposed in consideration of rate-dependent strain hardening effect. The strain rate hardening term in the new constitutive model consists of the strain rate sensitivity coefficients of the yield strength and strain hardening. }, journal = {International Journal of Mechanical and Mechatronics Engineering}, volume = {8}, number = {4}, year = {2014}, pages = {306 - 308}, ee = {https://publications.waset.org/pdf/9998030}, url = {https://publications.waset.org/vol/88}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 88, 2014}, }