@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},
	}