A Generalised Technique for Fracture Analysis of Cracked Plates Under Combined Tensile, Bending and Shear Loads
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
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| Title |
A Generalised Technique for Fracture Analysis of Cracked Plates Under Combined Tensile, Bending and Shear Loads
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| Creator |
Palani, G.S.
Nagesh R. Iyer Dattaguru, B. |
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| Subject |
Fracture mechanics
Finite element method Tensile Bending and shear loads Stress intensity factor Strain energy release rate Numerical integration |
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| Description |
The objective of this paper is to propose a generalized technique called numerically integrated modified virtual crack closure integral (NI-MVCCI) technique for fracture analysis of cracked plates under combined tensile, bending and shear loads. NI-MVCCI technique is used for post-processing the results of finite element analysis (FEA) for computation of strain energy release rate (SERR) components and the corresponding stress intensity factor (SIF) for cracked plates. NI-MVCCI technique has been demonstrated for 4-noded, 8- noded (regular and quarter-point) and 9-noded (regular and quarter-point) isoparametric plate finite elements. These elements are based on Mindlin’s plate theory that considers shear deformation. For all the elements, reduced integration/selective reduced integration techniques have been employed in the studies. In addition, for 9-noded element assumed shear interpolation functions have been used to overcome the shear locking problem. Numerical studies on fracture analysis of plates subjected to tension–moment and tension–shear loads have been conducted employing these elements. It is observed that among these elements, the 9-noded Lagrangian plate element with assumed shear interpolation functions exhibits better performance for fracture analysis of cracked plates. 2006 Elsevier Ltd. All rights reserved.
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| Date |
2009
2009 2006 |
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| Type |
Article
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| Identifier |
Computers and Structures vol.84, 2006, pp.2050–2064
http://hdl.handle.net/123456789/37 |
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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
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