A study of induced delamination and failure in woven composite laminates subject to short-beam shear testing

•Delamination onset of woven composite beams differ from the typical homogeneous assumption.•Relative layer shifting affects the shear stress distribution along the thickness.•Delamination and failure onset depend on layer shifting. Failure in woven composite laminates subject to global shear load i...

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Bibliographic Details
Published inEngineering fracture mechanics Vol. 205; pp. 359 - 369
Main Authors Espadas-Escalante, J.J., Isaksson, P.
Format Journal Article
LanguageEnglish
Published New York Elsevier Ltd 01.01.2019
Elsevier BV
Subjects
Computed tomography
Damage
Delamination
Failure mechanisms
Finite element analysis
Finite element method
Interface fracture
Laminates
Scanning electron microscopy
Stress concentration
Stress distribution
Woven composites
X-ray computed tomography
Finite element analysis
X-ray computed tomography
Damage
Interface fracture
Woven composites
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Summary:•Delamination onset of woven composite beams differ from the typical homogeneous assumption.•Relative layer shifting affects the shear stress distribution along the thickness.•Delamination and failure onset depend on layer shifting. Failure in woven composite laminates subject to global shear load is studied. Laminates are manufactured, tested and analyzed using X-ray computed tomography, scanning electron microscopy and finite element models. It is found that the stress distribution along the thickness direction is dependent on the layer shifting that alters different yarn interactions, which in turn, affects delamination and failure onset. A suggested failure mechanism is in agreement with experimental observations.
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content type line 14
ISSN:0013-7944
1873-7315
1873-7315
DOI:10.1016/j.engfracmech.2018.10.015