Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7175009 | International Journal of Pressure Vessels and Piping | 2018 | 49 Pages |
Abstract
The reference stress solutions for plates with embedded off-set elliptical cracks under combined biaxial forces and cross-thickness bending are derived based on the Mises yield criterion and net-section collapse principle. The newly developed reference stress solutions are compared with the reference stresses of plates with embedded rectangular cracks evaluated using the available limit load solutions. The developed reference stress solutions have been used to predict J via the reference stress J scheme. Elastic-plastic 3-D finite element (FE) analyses are used to calculate J values along the crack front and the results are compared with the reference stress predictions. The results show that the estimated J values based on the reference stress method with the reference stress solutions developed in this paper are very close to the FE J values, but the predictions may be non-conservative. However, the non-conservatism could be removed by simply applying a constant factor less than 1 to the reference stress solutions when they are used in the reference stress J scheme.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Yuanjun Lv, Yuebing Li, Yuebao Lei, Zengliang Gao,