WEIGHT FUNCTIONS FOR STRUCTURAL INTEGRITY ASSESSMENT–METHOD AND APPLICATIONS
An overview is presented on the weight function method for fracture-mechanics-based structural integrity assessment with regard to crack-like defects. The weight function method provides a powerful tool for the determination of key parameters, such as stress intensity factor and crack opening displacement for cracked structural components. For two dimensional (2D) crack problems, weight functions were obtained in closed form for both center- and edge-crack configurations. For three dimensional (3D) cases, a combination of the closed-form 2D weight functions and the slice synthesis technique makes it possible for rapid determination of stress intensity factor at any point along the crack front. The versatility, efficiency and accuracy of the weight function method, especially for treating crack problems with complex loadings, were demonstrated with various examples.
Xue-Ren Wu
Beijing Institute of Aeronautical Materials, Beijing 100095, China.
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）