A three dimensional implicit finite element damage model and its application to single-lap multi-bolt composite joints with variable clearance

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dc.contributor.author Zhou, Yinhua
dc.contributor.author Yazdani Nezhad, Hamed
dc.contributor.author Hou, Chi
dc.contributor.author Wan, Xiaopeng
dc.contributor.author McCarthy, C. T.
dc.contributor.author McCarthy, M. A.
dc.date.accessioned 2016-07-22T15:20:59Z
dc.date.available 2016-07-22T15:20:59Z
dc.date.issued 2015-07-08
dc.identifier.citation Yinhua Zhou, Hamed Yazdani Nezhad, Chi Hou, Xiaopeng Wan, C.T. McCarthy, M.A. McCarthy, A three dimensional implicit finite element damage model and its application to single-lap multi-bolt composite joints with variable clearance, Composite Structures, Volume 131, 1 November 2015, Pages 1060-1072 en_UK
dc.identifier.issn 0263-8223
dc.identifier.uri http://dx.doi.org/10.1016/j.compstruct.2015.06.073
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/10159
dc.description.abstract A three-dimensional, implicit, finite element composites damage model is developed, and applied to a problem involving highly complex, three-dimensional loading, i.e. a single-lap, multi-bolt, composite joint, having variable clearances. The model extends a previous model, adding Puck’s criteria to allow delamination-like, transverse cracking-like or mixed mode failures to be simulated. Plasticity is also added for non-reversible strains in the undamaged parts of the matrix, and a mesh independence strategy is incorporated. A back-up strategy for when the Newton–Raphson method fails to converge, adds significantly to model robustness. The model is implemented in a commercial, implicit solver and demonstrates excellent robustness, being capable of following damage progression from onset, through bearing failure at the holes, to catastrophic, net-tension failure. The predicted failure modes and loads are in good agreement with experiment. The effect of clearance on secondary bending, and consequently on damage progression, is demonstrated. The current model shows better capability than our previous model for predicting matrix damage near the hole, which will be important for future fatigue modelling studies. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.subject Composites en_UK
dc.subject Bolted joints en_UK
dc.subject Plasticity en_UK
dc.subject Clearance en_UK
dc.subject Damage evolution en_UK
dc.subject Puck's criterion en_UK
dc.title A three dimensional implicit finite element damage model and its application to single-lap multi-bolt composite joints with variable clearance en_UK
dc.type Article en_UK


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