Analysis of the failure behaviour of fibre reinforced nanocomposites

特别是纳米复合材料和纤维增强纳米复合材料(FRNC)的收缩是在子项目5的第二个资助期进行研究和模拟的。为此，通过实验考察了收缩随颗粒质量分数、化学表面改性和分散体质量的变化。与第一个资助期类似，特别注意颗粒-基质界面及其对其作用模式的认识。此外，还对纳米复合材料和FRNC的力学性能进行了随温度变化的实验研究。实验数据用于验证和校准模拟模型，该模型旨在再现热力性能和收缩。此外，还计划对纳米复合材料和FRNC的开裂特性进行详细的研究，以表征颗粒诱导的复杂损伤机制。

Especially the shrinkage of nanocomposites and fiber-reinforced nanocomposites (FRNC) are to be investigated and simulated in the second funding period of subproject 5. For this purpose the shrinkage is examined experimentally as a function of the particle weight fraction, the chemical surface modification and the dispersion quality. Analogous to the first funding period special attention is paid to the particle-matrix interphase and the creation of knowledge about their mode of action. Furthermore, the mechanical properties of nanocomposites and FRNC are to be examined experimentally depending on the temperature. The experimental data is used for validation and calibration of the simulation models, which are intended to reproduce the thermal-mechanical properties and the shrinkage. In addition, detailed investigation of the cracking characteristics of the nanocomposites and the FRNC are planned to characterize the particle- induced complex damage mechanisms.