材料科学
复合材料
聚丙烯
玻璃纤维
梁(结构)
复合数
汽车工业
艾氏冲击强度试验
宏
热塑性塑料
结构工程
计算机科学
工程类
极限抗拉强度
航空航天工程
程序设计语言
作者
Bing Du,Zhengxuan Li,Huimin Bai,Qian Li,Changqi Zheng,Jingwei Liu,Feng Qiu,Zhenhua Fan,Hanjie Hu,Liming Chen
出处
期刊:Polymers
[MDPI AG]
日期:2022-04-29
卷期号:14 (9): 1814-1814
被引量:17
标识
DOI:10.3390/polym14091814
摘要
Long Fiber Reinforced Thermoplastic (LFT) is a lightweight, high-strength, and easy-to-recycle new vehicle composite material, and has good mechanical properties, heat resistance, and weather resistance, which has found increasing application in automobile industry. It is of importance to understand the relationship between micro phase, macro-mechanical properties and the structural performance of automobile components. This article evaluates the performance of LFT from the level of material to automobile components. The mechanical properties of LFT were numerically and theoretically predicted to provide instruction for the next material choice. Two typical structural components, namely, car seat frame and bumper beam, were selected to evaluate the performance of LGF/PP compared with other competing materials in terms of mechanical properties and cost. In the case of the same volume, the seat frame of 40% LECT/PP composite material is lighter and cheaper, which is conducive to energy saving and emission reduction. It was shown that the 40% LECT/PA66 car bumper beam had a higher energy absorption ratio, lighter weight, higher specific energy absorption, and advantageous material cost. LFT is a promising candidate for existing automobile components with its performance fulfilling the requirements.
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