Study on general solution of local flexibility of pipe with a part-through straight crack
Hu JiaShun1 Sun WenYong1 Liu Duo2 Zhou Jing2
1. Research Department of Safety Technology, CNPC Research Institute of Safety & Environment Technology, Beijing, 100083, China)(2. The State key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 110624, China)
Abstract：Abstract: The crack model based on local flexibility has received attractive attention in engineering. However, the study on the local flexibility of pipe with a crack that has an arbitrary angle is scarce. The local flexibility equations of the pipe with a part-through crack that subjected to axial force, shearing force and bending moment were deduced from theories of linear fracture mechanics taking into the effect of the angle of crack on the local flexibility of pipe account. An adaptive Simpson method was used to obtain the flexibility coefficients of cracked pipe and the results of Naniwadekar’s experiment was used to validate the proposed approach. The results demonstrate that the proposed approach to local flexibility is accurate, which is suitable for vibration analysis of pipe-like structure with an arbitrary angle crack.
胡家顺;孙文勇;刘朵;周晶. 含非贯穿直裂纹管道局部柔度系数的广义解研究[J]. , 2011, 30(5): 169-173,.
Hu JiaShun Sun WenYong Liu Duo Zhou Jing. Study on general solution of local flexibility of pipe with a part-through straight crack. , 2011, 30(5): 169-173,.
2011, Vol. 30 
