半个世纪以来,为了研究材料在低应力状态下的突然脆断,不少专家化费大量精力,深入探讨如何防止和控制构件的断裂破坏,“断裂力学”这门新学科也应运而生。甘肃工大的同志们,创造性地把材料低应力脆断现象,应用于机械加工工艺中,将防止断裂转化为谋求断裂,他们称之为“断裂设计”.这是一种新的设想,我们希望,本文的发表,将能引起有关同行们的兴趣和关注,共同对这种“裂纹技术”进行探讨和研究。 For half a century, in order to study the sudden brittle fracture of materials in low stress state, many experts spend a lot of energy, in-depth discussion on how to prevent and control the failure of components, fracture mechanics, a new discipline has emerged. The comrades of Gansu Polytechnic University, creatively applying the phenomenon of low stress and brittle fracture to the machining process to prevent the fracture from transforming into seeking to fracture, are called “fracture design.” This is a new idea and we hope The publication of this article will be able to arouse the interest and concern of colleagues concerned to jointly explore and study this “crack technology.”