Prediction of mode I delamination resistance of z-pinned laminates using the embedded finite element technique

Blacklock, Matthew, Joosten, Mathew W., Pingkarawat, Khomkrit and Mouritz, Adrian P. 2016, Prediction of mode I delamination resistance of z-pinned laminates using the embedded finite element technique, Composites part A: applied science and manufacturing, vol. 91, Part 1, pp. 283-291, doi: 10.1016/j.compositesa.2016.10.008.

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Title Prediction of mode I delamination resistance of z-pinned laminates using the embedded finite element technique
Author(s) Blacklock, Matthew
Joosten, Mathew W.ORCID iD for Joosten, Mathew W. orcid.org/0000-0002-4602-3246
Pingkarawat, Khomkrit
Mouritz, Adrian P.
Journal name Composites part A: applied science and manufacturing
Volume number 91, Part 1
Start page 283
End page 291
Total pages 9
Publisher Elsevier
Place of publication Oxford, Eng.
Publication date 2016-12
ISSN 1359-835X
1878-5840
Keyword(s) polymer matrix composites (PMCs)
fracture toughness
finite element analysis (FEA)
Summary A new finite modelling approach is presented to analyse the mode I delamination fracture toughness of z-pinned laminates using the computationally efficient embedded element technique. In the FE model,each z-pin is represented by a single one-dimensional truss element that is embedded within the laminate. Each truss is given the material, geometric and spatial properties associated with the global crackbridging traction response of a z-pin in the laminate; this simplification provides a computationally efficient and flexible model where pin elements are independent of the underlying structural mesh for thelaminate. The accuracy of the FE modelling approach is assessed using mode I interlaminar fracture toughness data for a carbon-epoxy laminate reinforced with z-pins made of copper, titanium or stainless steel. The model is able to predict with good accuracy the crack growth resistance curves and fracture toughness properties for the different types of z-pinned laminate.
Language eng
DOI 10.1016/j.compositesa.2016.10.008
Field of Research 0912 Materials Engineering
0913 Mechanical Engineering
0901 Aerospace Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088517

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