中心裂纹板的动、静态破损实验研究

Rupture Experimental Investigation of Through Centre Cracked LY12 Plate Specimens under Dynamic and Static Tensile Loadings

在动、静态拉伸加载条件下，对具有不同裂纹尺寸的中心裂纹ＬＹ１２板试件分别进行了破损实验研究，得到了名义断裂应力与板的初始裂纹长度间的关系，由此建立了中心裂纹ＬＹ１２板的破损评定关系．通过对动、静态实验结果的比较，得到在动、静态拉伸加载条件下某些参量间的相互关系。

In this paper,the relationship between nominal fracture stress and initial crack length of through centre cracked LY12 plate specimens is established by the static and dynamic tensile Ioadings rupture experiments,respective. The relations of some parameters in static and dynamic experiments are compared.