@inproceedings{7a5577522a314f8991448741a6fdcf42,
title = "Interlaminar fatigue growth under thermal cycles in composite laminate",
abstract = "A fatigue growth of fiber-reinforced composite laminate was characterized under a combined experimental and computational investigation. Here, 24-ply composites with pre-existing delamination were subjected to thermal cycles. During two month long test period, the crack growths were regularly monitored under variable amplitude. The measured data was used to determine the relationship between the temperature and growth rate. After completion of the test, inspections of fractured surfaces showed uneven growth with greater propagations near free surfaces. Due to such a behavior, 3D finite element analyses were performed to obtain energy release rate and mixed-mode stress intensity factors. The variations of these parameters were consistent with the observed crack front. The measured crack growth rates were also correlated with energy release rate to show good fit with the Paris law. The results are useful in understanding delamination growth under thermal cycles and estimating the threshold temperature to drive the growth.",
keywords = "3D FEM, Energy release rate, Interlaminar fatigue crack, Mixed-mode fracture",
author = "Toshio Nakamura and Narayanan Ramanujam and Pavankiran Vaddadi and Singh, \{Raman P.\}",
year = "2007",
language = "English",
isbn = "9784931136052",
series = "ICCM International Conferences on Composite Materials",
publisher = "International Committee on Composite Materials",
booktitle = "Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - {"}A Giant Step Towards Environmental Awareness",
}