论文部分内容阅读
本文介绍用轴对称环状裂纹圆柱试样测试铸造镁合金(ZM-5)的平面应变断裂韧度K_(1c)值,给出了满足脆性断裂条件的试样尺寸公式。文中还探讨了此种低σ_(0.2)和低韧度材料的线弹性断裂力学处理方法。
In this paper, the plane strain fracture toughness K_ (1c) of cast magnesium alloy (ZM-5) is tested by axial symmetrical ring crack cylindrical specimens, and the formula of the specimen size to satisfy the brittle fracture condition is given. The method of linear elastic fracture mechanics of such low σ_ (0.2) and low toughness materials is also discussed.