Mphahlele Keletso, Ray Suprakas Sinha, Kolesnikov Andrei
DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa.
Department of Chemical, Metallurgical and Material Engineering, Tshwane University of Technology, Pretoria 0001, South Africa.
Polymers (Basel). 2017 Oct 20;9(10):535. doi: 10.3390/polym9100535.
The formation of micro-cracks and crack propagation is still an acute problem in polymer and polymer composites. These micro-cracks usually occur while the materials are manufactured or serviced. The development and coalescence of these cracks reduces the lifespan and brings about a catastrophic failure of the materials. Novel scientific research on polymeric self-healing is emphasised in a number of publications, which consist of contributions from many of the prominent researchers in this area. Progress in this field can eventually enable scientist to construct new flexible materials that both monitor the material's integrity and repair the deformed material prior to the occurrence of any fatal failures. This report describes recent trends that have been used in material science and computational methods to mitigate the development of micro-cracks and crack propagation in polymer composites.
微裂纹的形成和裂纹扩展在聚合物及聚合物复合材料中仍然是一个严峻的问题。这些微裂纹通常在材料制造或使用过程中出现。这些裂纹的发展和合并会缩短材料寿命，并导致材料发生灾难性故障。许多出版物都强调了聚合物自修复方面的新科学研究，其中包含该领域众多杰出研究人员的贡献。这一领域的进展最终可使科学家构建出新的柔性材料，既能监测材料的完整性，又能在发生任何致命故障之前修复变形的材料。本报告描述了材料科学和计算方法中用于减轻聚合物复合材料中微裂纹发展和裂纹扩展的最新趋势。
