上文通大￥ SHANGHAI JIAO TONG UNIVERSITY 上有交重大学 的学证程学喷 力学性能-拉伸试验 Stress-strain curve Ultimate Tensile Stress(UTS) 0.2%Proof Stress Stress Yield Stress (oy) Slope Work-Hardening rate Plastic Fracture Stress, Elastic Limit Strain Limit of Proportionality Modulus Fracture Energy N.B.-this is a typical "engineering stress"vs “engineering strain curve. The true stress vs true strain curve is different Strain and its shape determines the UTS. Engineering"C"-High Perfomance Alloys:HT 2000 S.G.Roberts 1:7力学性能-拉伸试验