HIGHER ORDER ASYMPTOTIC FIELDS AT THE TIP OF A SHARP V-NOTCH IN A POWER-HARDENING MATERIAL  

作　　者：Wang Weiwei  Kuang Zhenbang 

机构地区：[1]Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200240, Peoples R China

出　　处：《Acta Mechanica Solida Sinica》2002年第2期102-110,共9页固体力学学报（英文版）

基　　金：the National Natural Science Foundation of China (Nos.10132010 and 10072033).

摘　　要：The higher order asymptotic fields at the tip of a sharp V-notchin a power-hardening material for plane strain problem of Mode I arederived. The order hierarchy in powers of r for various hardeningexponents n and notch angles β is obtained. The angulardistributions of stress for several cases are plotted. Theself-similarity behavior between the higher order terms is noticed.It is found that the terms with higher Order can be neglected for theV-notch angle β>45°.The higher order asymptotic fields at the tip of a sharp V-notchin a power-hardening material for plane strain problem of Mode I arederived. The order hierarchy in powers of r for various hardeningexponents n and notch angles β is obtained. The angulardistributions of stress for several cases are plotted. Theself-similarity behavior between the higher order terms is noticed.It is found that the terms with higher Order can be neglected for theV-notch angle β>45°.

关 键 词：ASYMPTOTIC V-NOTCH higher order terms power-hardening 

分 类 号：TB302[一般工业技术—材料科学与工程]