Abstract
The failure envelope of the matrix in composite laminates under compressive loads has not received much attention in literature. There are very little to no experimental results to show a suitable failure envelope for this constituent found in composites. With increasing popularity in the use of micromechanical analysis to predict progressive damage of composite structures which requires the use of individual failure criteria for the fibre and matrix, it is important that matrix behaviour under compression is modelled correctly. In this study, off-axis compression tests under uniaxial compression loading are used to promote matrix failure. Through the use of micromechanical analysis involving Representative Volume Elements, the authors were able to extract the principal stresses on the matrix at failure. The results indicated that hydrostatic stresses play an important role in the failure of the matrix. Thus, Drucker-Prager failure criterion is recommended when modelling compressive matrix failure in composite structures.
| Original language | English |
|---|---|
| Pages (from-to) | 103-113 |
| Number of pages | 11 |
| Journal | Composites Part A: Applied Science and Manufacturing |
| Volume | 84 |
| DOIs | |
| Publication status | Published - 1 May 2016 |
Keywords
- A. Polymer-matrix composites (PMCs)
- A. Resins
- D. Mechanical testing
- Microstructural analysis
Cite this
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Matrix failure in composite laminates under compressive loading. / Chowdhury, Nayeem Tawqir; Wang, John; Chiu, Wing Kong; Yan, Wenyi.
In: Composites Part A: Applied Science and Manufacturing, Vol. 84, 01.05.2016, p. 103-113.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Matrix failure in composite laminates under compressive loading
AU - Chowdhury, Nayeem Tawqir
AU - Wang, John
AU - Chiu, Wing Kong
AU - Yan, Wenyi
PY - 2016/5/1
Y1 - 2016/5/1
N2 - The failure envelope of the matrix in composite laminates under compressive loads has not received much attention in literature. There are very little to no experimental results to show a suitable failure envelope for this constituent found in composites. With increasing popularity in the use of micromechanical analysis to predict progressive damage of composite structures which requires the use of individual failure criteria for the fibre and matrix, it is important that matrix behaviour under compression is modelled correctly. In this study, off-axis compression tests under uniaxial compression loading are used to promote matrix failure. Through the use of micromechanical analysis involving Representative Volume Elements, the authors were able to extract the principal stresses on the matrix at failure. The results indicated that hydrostatic stresses play an important role in the failure of the matrix. Thus, Drucker-Prager failure criterion is recommended when modelling compressive matrix failure in composite structures.
AB - The failure envelope of the matrix in composite laminates under compressive loads has not received much attention in literature. There are very little to no experimental results to show a suitable failure envelope for this constituent found in composites. With increasing popularity in the use of micromechanical analysis to predict progressive damage of composite structures which requires the use of individual failure criteria for the fibre and matrix, it is important that matrix behaviour under compression is modelled correctly. In this study, off-axis compression tests under uniaxial compression loading are used to promote matrix failure. Through the use of micromechanical analysis involving Representative Volume Elements, the authors were able to extract the principal stresses on the matrix at failure. The results indicated that hydrostatic stresses play an important role in the failure of the matrix. Thus, Drucker-Prager failure criterion is recommended when modelling compressive matrix failure in composite structures.
KW - A. Polymer-matrix composites (PMCs)
KW - A. Resins
KW - D. Mechanical testing
KW - Microstructural analysis
UR - http://www.scopus.com/inward/record.url?scp=84956681710&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2016.01.007
DO - 10.1016/j.compositesa.2016.01.007
M3 - Article
VL - 84
SP - 103
EP - 113
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
SN - 1359-835X
ER -