Strength prediction in CFRP woven laminate bolted double-lap joints under quasi-static loading using XFEM
The current paper is concerned with modelling damage and fracture in woven fabric composite doublelap bolted joints that fail by net-tension. A 3-D finite element model is used, which incorporates bolt clamp-up, to model a range of CFRP bolted joints, which were also tested experimentally. The effec...
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| Format: | Article |
| Published: |
Elsevier
2014
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1359835X1300287X http://www.sciencedirect.com/science/article/pii/S1359835X1300287X http://eprints.uthm.edu.my/4581/1/HILTON_AHMAD_DLJ_COMA.pdf |
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| Summary: | The current paper is concerned with modelling damage and fracture in woven fabric composite doublelap
bolted joints that fail by net-tension. A 3-D finite element model is used, which incorporates bolt
clamp-up, to model a range of CFRP bolted joints, which were also tested experimentally. The effects
of laminate lay-up, joint geometry, hole size and bolt clamp-up torque were considered. An Extended
Finite Element (XFEM) approach is used to simulate damage growth, with traction–separation parameters
that are based on previously reported, independent experimental measurements for the strength
and toughness of the woven fabric materials under investigation. Good agreement between the predicted
and measured bearing stress at failure was obtained. |
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