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首页> 外文会议>AIAA/ASCE/AHS/ASC structures, structural dynamics and materials conference;AIAA SciTech Forum >Cryogenic Composite Fuel Tanks: The Mechanical Performance of Advanced Composites at Low Temperatures
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Cryogenic Composite Fuel Tanks: The Mechanical Performance of Advanced Composites at Low Temperatures

机译：低温复合燃料箱：先进复合材料在低温下的机械性能

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Liquefied Natural Gas (LNG) is currently being used as fuel in many marine applications, and surveys are showing that it is also being considered as aviation fuel. This becomes reality or not, the cryogenic conditions exist not only in LNG applications but also in Liquid Hydrogen tanks. Therefore, the quest for lightweight composite materials that are ductile at cryogenic conditions is ongoing. In this particular research, all-polypropylene (PP) and lltra High Molecular Weight PolyEthylene (UHMWPE) tapes are subjected to tensile, bending and impact tests at -196°C. In this paper, the ultimate tensile stress, failure strain and 0/90 shear strength of the laminates as well as the results of a demonstration case where 1.1 m long filament wound tubes subjected to the impact loading are given. The results are showing that both of these material possess certain ductility at such extreme temperatures and therefore, a further investigation on the performance of these materials or hybrid concepts is recommended.
机译：液化天然气（LNG）目前被用作许多海洋应用中的燃料，并且调查显示它也被视为航空燃料。这成为现实，并且不仅存在于LNG应用中的低温条件，还存在于液体氢气罐中。因此，追求在低温条件下延展性的轻质复合材料是正在进行的。在该特定的研究中，全聚丙烯（PP）和LLTRA高分子量聚乙烯（UHMWPE）胶带在-196℃下进行拉伸，弯曲和冲击试验。在本文中，给出了层压板的最终拉伸应力，失效应变和0/90剪切强度，以及对受冲击载荷进行的1.1M长的长丝伤口管的示范壳体的结果。结果表明，这两种材料在这种极端温度下具有一定的延展性，因此建议进一步调查这些材料或混合概念的性能。

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