Fracture mechanics analysis of safety in ultra-high pressure piping
✍ Scribed by Wei-Shan Cu; Sha-Wei Shao; Su-Juan Hua
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 156 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0013-7944
No coin nor oath required. For personal study only.
✦ Synopsis
Chinese abstracti iteraction cycle, will generally induce a family of normal tractions on the crack surfaces which can be expressed as 5 A?.
n=O Coefficient A," succinctly and completely expresses the effect of traction f"' on traction t" at the beginning of the next alternating cycle. We call A; the alternating coefficient of m to II. Obviously, the alternating coefficients play a key role in the alternating procedure and with them the alternating cycling can be carried on more efficiently and accurately. Exact formulas for four kinds of the alternating coefficients corresponding to symmetric, antisymmetric, normal and shearing tractions are derived. These formulas are then applied to a number of loading conditions of practical interest, including uniform and concentrated forces and couples. In all cases, it is found that the convergence of the alternating procedure is satisfactory and the numerical values of the stress intensity factors are highly accurate.