拉压强度不同材料的复合型断裂准则

Fracture Criterion of Material with Different Strength in Tension and Compression Under Mixed Mode Ioading

考虑了材料拉压性能的不能对复合型断裂强度的影响，提出了巴兰金屈服面上的最大周向应力准则，并与实验结果进行了比较。结果表明：对拉压异性材料，考虑了拉压强度的不同对断裂的影响而建立的断裂准则更接近于实验值。

Considering the effect of difference between tensile strength and comprescialstrength on the fracture toughness under mixer mode loading, maxmum the circle stresscriterion on the Bainnjin yield plane was proposed. It was shown from comparingpredicting with expaerimental results that the fraCture criterion Which is based on thedifference between tensile strength and comprescial strength corresponds with theexperimental values.