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比利时根特大学复合材料的振动响应的多尺度建模博士后职位

2014年10月16日
来源:知识人网整理
摘要:
Nowadays, there is an increasing interest to use composite materials in automotive applications, in particular the use of fibre-reinforced plastics (carbon or glass fibres in a polymer matrix) is widely considered. The use of lighter materials, and hence a reduced fuel consumption, can be one of the possible solutions for reduced CO2 emissions. As the automotive industry is mainly familiar with metals and plastics, a lot of research is being spent on the mechanical response of composites under fatigue and impact loading, and on developing new design methodologies for these "new" materials. Also, the design cycle is much shorter than in aerospace industry, so faster design and calculation methodologies are needed. Apart from these investigations, the use of composite materials in automotive applications has also other consequences. The so-called NVH (= Noise / Vibration / Harshness ) requirements have to be imposed to composite components as well, to guarantee a good acoustic comfort for the driver and passengers. However, the NVH behaviour of composites is not well understood, and due to the visco-elastic behaviour of its polymer matrix, the vibration and damping response of composite panels can be very different from the behaviour of metallic panels.