TY - GEN
T1 - Deformation and failure of angle-ply composite laminates
AU - Werner, B. T.
AU - Schaefer, J. D.
AU - Daniel, Isaac M
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Angle-ply carbon/epoxy composite laminates were tested under uniaxial compression at two strain rates (10-4 and 1 s-1). In this study, failure is defined as maximum ply damage. This is determined by noting where the stress-strain curve of the laminate reaches a characteristic damage state and the stress-strain behavior reaches a terminal modulus. The characteristic damage state stress is compared to predictions from the recently introduced Northwestern (NU) theory at each strain rate. Residual and interlaminar stresses were considered in the analysis and experiment design. Most classical theories fail to predict the exact failure behavior of the laminates. The NU theory is in good agreement in most cases with the exception of cases where the state of stress includes a non negligible stress component in the fiber direction. However, for determining lamina failure due to matrix dominated failure modes, the NU theory is in excellent agreement with experimental results.
AB - Angle-ply carbon/epoxy composite laminates were tested under uniaxial compression at two strain rates (10-4 and 1 s-1). In this study, failure is defined as maximum ply damage. This is determined by noting where the stress-strain curve of the laminate reaches a characteristic damage state and the stress-strain behavior reaches a terminal modulus. The characteristic damage state stress is compared to predictions from the recently introduced Northwestern (NU) theory at each strain rate. Residual and interlaminar stresses were considered in the analysis and experiment design. Most classical theories fail to predict the exact failure behavior of the laminates. The NU theory is in good agreement in most cases with the exception of cases where the state of stress includes a non negligible stress component in the fiber direction. However, for determining lamina failure due to matrix dominated failure modes, the NU theory is in excellent agreement with experimental results.
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U2 - 10.1007/978-3-319-00873-8_19
DO - 10.1007/978-3-319-00873-8_19
M3 - Conference contribution
AN - SCOPUS:84886862216
SN - 9783319008721
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 167
EP - 171
BT - Experimental Mechanics of Composite, Hybrid, and Multifunctional Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics
T2 - 2013 Annual Conference on Experimental and Applied Mechanics
Y2 - 3 June 2013 through 5 June 2013
ER -