On The Accuracy of Ductile Fracture Assessment of Through-Wall Cracked Pipes
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
On The Accuracy of Ductile Fracture Assessment of Through-Wall Cracked Pipes
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| Creator |
Sanjeev Saxenaa
Ramachandra Murthy, D.S. |
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| Subject |
Ductile fracture
Finite element analysis J -integral Crack initiation Tearing instability |
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| Description |
Ductile fracture assessments of circumferentially through-wall cracked piping components performed on the basis of the elastic–plastic J -
integral concepts are discussed with particular interest in its ability and accuracy to predict actual experimental loads corresponding to initiation
of stable crack growth and failure stages. Possible source of uncertainty in the modeling of material behaviour is treated separately, comparing
results with each other and with experimental data. Especially J estimation schemes for evaluating applied J -integral are checked against 3D
non-linear finite element analysis (FEM) using the advanced fracture analysis code WARP3D. The influence of stress–strain curve used as an
input to the FEM analysis on the predicted results of crack initiation and maximum loads is examined in circumferentially through-wall cracked
pipes. The elastic–plastic fracture mechanics based J -integral combined with J–T analysis is found to give an accurate and complete description
of component behaviour. An approximation of material stress–strain curve is given based on the interpretation of experimental results.
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| Date |
2009
2009 2007 |
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| Type |
Article
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| Identifier |
Engineering Structures vol.29, 2007, pp.789–801
http://hdl.handle.net/123456789/129 |
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| Language |
en
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| Rights |
It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
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| Publisher |
Elsevier (Science Direct)
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