Tensile strength corresponds to the maximum tensile stress that may be sustained by a specimen 抗拉强度是指样品可能承受的最大拉伸应力。
3.
The models of analyzing temperature and structure are established . temperature increment and deformation are discussed with finite element method and ordered coupling method . maximum tensile stress criterion is chosen as the destroying criterion of components 首先建立了光学元件温升和结构分析模型，用有限元法和序贯耦合法计算材料的温升和变形，同时选取最大拉应力准则作为材料的破坏准则。
