By means of the finite element method crack opening displacements were calculated for long axial surface cracks at the outer wall of a pipe. The wall thickness to inner radius ratio of the pipe was 1 to 10. Following a procedure introduced be Mattheck et al. weight functions were evaluated by means
Stress intensity factors for complete circumferential surface cracks at the outer wall of a pipe loaded by stress gradients
โ Scribed by Hans Grebner; Claus Mattheck
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 238 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0029-5493
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## Abstract Stress intensity factors were calculated for partly circumferential surface cracks at the outside of a pipe. The pipe is loaded by internal pressure and by thermal stresses. The weight functions method is used to calculate averaged weighted stress intensity factors at the deepest point
Stress intensity factors are calculated at the deepest point and at the surface points of circumferential semielliptical surface cracks in a thermally shocked pipe. The method of calculation is based on weight functions following a proposal by Munz et al. Numerical values of the stress intensity fac