Damage Properties Simulations of Self-Healing Composites

作者：Chen, Cheng; Ji, Hongwei^*; Wang, Huaiwen

来源：Journal of Nanoscience and Nanotechnology, 2013, 13(10): 6679-6686.

DOI：10.1166/jnn.2013.7780

• Damage Properties
• Numerical Simulation
• Self-Healing Composites
• Microcapsule

Self-healing materials are inspired by biological systems in which damage triggers an autonomic healing response. The damage properties of a self-healing polymer composite were investigated by numerical simulation in this paper. Unit cell models with single-edge centered crack and single-edge off-centered crack were employed to investigate the damage initiation and crack evolution by the extended finite element method (XFEM) modeling. The effect of microcapsule's Young's modulus on composites was investigated. Result indicates the microcapsule's Young's modulus has little effect on the unit cell's carrying capacity. It was found that during the crack propagation process, its direction is attracted toward the microcapsules, which makes it helpful for the microcapsules to be ruptured by the propagating crack fronts resulting in release of the healing agent into the cracks by capillary action.

• 出版日期2013-10
• 单位中国矿业大学（北京）; 天津商业大学