论文部分内容阅读
材料的力学性能是进行机械设计,评定材料、研制新材料、新工艺以及选择代用材料的一项重要依据。材料力学性能的研究在机械工程和材料科学领域始终发挥着重大作用。近年来,材料力学性能的研究已经取得了迅速的发展,主要表现在以下三个方面: 一、从传统力学向断裂力学发展传统的强度计算理论是长期来在工程上对构件或结构强度的计算方法,它以材料力学和结构力学为基础,假定材料为均匀的连
The mechanical properties of materials is an important basis for mechanical design, evaluation of materials, development of new materials, new processes and selection of alternative materials. The study of mechanical properties of materials has always played a significant role in the field of mechanical engineering and materials science. In recent years, the mechanical properties of materials has made rapid development, mainly in the following three aspects: First, the development from traditional mechanics to fracture mechanics The traditional theory of strength calculation is the long-term engineering component or structural strength calculation Method, which is based on the mechanics of materials and mechanics of the structure, assuming that the material is homogenous