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简述了线弹性断裂力学在模具的选材、制订加工工艺等方面的应用,给出了不扩展短裂纹临界裂纹尺寸α_c的估算式,列举了对短裂纹寿命的影响因素,并讨论了动态断裂力学等问题。
The application of linear elastic fracture mechanics to the selection of molds and the development of processing technology are briefly introduced. The formula for estimating the critical crack size α_c of short cracks is given, and the influencing factors on the life of short cracks are given. The dynamic fracture Mechanics and other issues.