Establishing methodology to predict fracture behaviour of piping components by numerically predicting specimen fracture data using tensile specimen test
✍ Scribed by Sanjeev Saxena; N. Ramakrishnan; J.S. Chouhan
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 864 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0013-7944
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✦ Synopsis
Using large deformation FEM analyses in SA333Gr.6 carbon steel material, the present study demonstrated the assessment of SZWc value that leads to J SZWc and finally compares with the respective experimental results. It also includes numerical prediction of specimen J-R curve using Gurson-Tvergaard-Needleman parameters obtain from tensile specimen tests. Using numerically predicted results, the crack initiation and instability stages in circumferentially through-wall cracked elbows is finally predicted and compares with experimental results. The present study gives evidence that the non-linear FEM analysis supported with proper tensile test data can be helpful in assessing the safety of bend pipes with through-wall crack.