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Cohesive Modeling of Transverse Cracking in Laminates with a Single Layer of Elements per PlyThis study aims to bridge the gap between classical understanding of transverse cracking in cross-ply laminates and recent computational methods for the modeling of progressive laminate failure. Specifically, the study investigates under what conditions a finite element model with cohesive X-FEM cracks can reproduce the in situ effect for the ply strength. It is shown that it is possible to do so with a single element across the thickness of the ply, provided that the interface stiffness is properly selected. The optimal value for this interface stiffness is derived with an analytical shear lag model. It is also shown that, when the appropriate statistical variation of properties has been applied, models with a single element through the thickness of a ply can predict the density of transverse matrix cracks
Document ID
20140004431
Document Type
Reprint (Version printed in journal)
Authors
VanDerMeer, Frans P. (Delft Univ. of Technology Delft, Netherlands)
Davila, Carlos G. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
May 1, 2014
Publication Date
October 1, 2013
Publication Information
Publication: International Journal of Solids and Structures
Volume: 50
Issue: 20-21
Subject Category
Structural Mechanics
Report/Patent Number
NF1676L-15901
Funding Number(s)
WBS: WBS 284848.02.04.07.01
CONTRACT_GRANT: STW-06623
Distribution Limits
Public
Copyright
Other