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现代工程技术的不断发展向力学提出了层出不穷的课题,而力学本身也不断地以新的成果调整和改进着工程设计的思路和面貌。作为力学新分支之一的断裂力学(断裂力学、断裂物理和断裂化学共同组成新兴的断裂学),其在现代工程技术中的积极作用愈来愈被人们所认识。近十年以来,国内围绕着金属材料,发展和建立了比较完善的线弹性断裂力学,制订了金属材料平面应变断裂韧性K_(IC)试验方法等部颁标准。断裂力
The continuous development of modern engineering technology presents an endless number of topics to mechanics, and mechanics itself constantly adjusts and improves the idea and appearance of engineering design with new results. As one of the new branches of mechanics, fracture mechanics (fracture mechanics, fracture physics, and fracture chemistry together constitute a new fracture science), its active role in modern engineering and technology has been increasingly recognized. In the past ten years, domestically developed around the metal material, a relatively complete linear elastic fracture mechanics has been developed, and the standards for the metal material plane strain fracture toughness K_(IC) test method have been formulated. Breaking force