| 反平面扩展裂纹的J积分与COD |
| |
| 引用本文： | 陈俊英 程靳. 反平面扩展裂纹的J积分与COD[J]. 固体力学学报, 1998, 19(1): 69-72 |
| |
| 作者姓名： | 陈俊英 程靳 |
| |
| 作者单位： | 哈尔滨工业大学航天工程与力学系!哈尔滨，150001 |
| |
| 摘 要： | 给出一个以任意速率扩展的反平面裂纹与路径无关的Ｊ积分，证明Ｊ积分扩展裂纹尖端的张开位移（动态ＣＯＤ）之间有的简单的关系，Ｊ积分与能量释放率，动应力强度因子之间也有简单关系，利用这些关系，给出了动态ＣＯＤ与动应力强度因子之间的关系式。
|
| 关 键 词： | 弹性动力学 断裂力学 断裂动力学 J积分 COD |
J~* INTEGRAL AND COD OF PROPAGATING CRACK IN ANTI-PLANE |
| |
| Chen Junying,Cheng Jin,Wang Gang. J~* INTEGRAL AND COD OF PROPAGATING CRACK IN ANTI-PLANE[J]. Acta Mechnica Solida Sinica, 1998, 19(1): 69-72 |
| |
| Authors: | Chen Junying Cheng Jin Wang Gang |
| |
| Abstract: | A path-independent J integral for crack extension at nonuniform rates in anti-plane is given. It also proves that there is a simple relation between the J integral and dynamic crack tip opening displacement. There also exit simple relations between the J integral and energy release rate and dynamic stress Intensity factor. By using these relations, we give the relation between dynamic COD and dynamic stress intensity factor. |
| |
| Keywords: | elastodynamic mechanics of fracture dynanmic of fracture |
| 本文献已被 CNKI 维普 等数据库收录！ |
