CAJ | 학술논문

在SCG模型基础上对其温度软化效应项作了改进，所提出的新模型在熔点温度Tm处满足剪切模量G（Tm）＝0，从而提高了温度的适用范围。对Al和93W作了计算，其理论结果与实验符合相当好。
재SCG모형기출상대기온도연화효응항작료개진，소제출적신모형재용점온도Tm처만족전절모량G（Tm）＝0，종이제고료온도적괄용범위。대Al화93W작료계산，기이론결과여실험부합상당호。
D.J.Steinberg,S.G.Cochran,an d M.W.Guinan(SCG)presented a constitutive model for metals applicable at high-s train rate in 1980.A new expression for the temperature related term in SCG mode l was suggested in this work.The expression gives that thear moduli vanish at me lting temperature,i.e.,G（Tm）＝0.Therefore,SCG model with the suggeste d expression can be used to describe material properites under high temperature. We have carried out calculations for Al and 93W,the theoretical results are in a greement with that of experiments very well.