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首页> 外文期刊>International journal of crashworthiness >Crashworthiness of composite inserts in vehicle structure
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Crashworthiness of composite inserts in vehicle structure

机译：车辆结构中复合嵌件的耐撞性

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摘要

Composite inserts are a well-known and innovative technology in the automotive industry used to improve safety, NVH (noise, vibration, and harshness) and fatigue life of vehicles, as well as to reduce vehicle weight and manufacturing cost. In order to study the crashworthiness performance of composite inserts in a vehicle structure, a three-point bending test of simplified steel-composite combined beam structures is considered. The beam structure in this investigation has a double-hat section. Epoxy-based structural foam and 33% short glass fibre reinforced nylon insert are considered as composite fillers for the two empty beam sections. Four cases, based on the different combination of composite materials inserted in the beam sections, are considered. The test results show that the composite insert greatly contributes to improvement of the energy absorption of beam structure. The force-displacement (F-D) curves of bending tests, the deformation behaviours of beam structures and the failure modes of composite inserts are shown and analysed to understand the effects of composite inserts to the crashworthiness of the beam structure in a bending condition. The numerical study was performed to develop a practical finite element (FE) model of the steel-composite combined structure.
机译：复合材料嵌件是汽车工业中的一项著名的创新技术，用于提高车辆的安全性，NVH（噪音，振动和粗糙度）和疲劳寿命，以及降低车辆的重量和降低制造成本。为了研究复合材料插入件在车辆结构中的耐撞性能，考虑了简化的钢-复合组合梁结构的三点弯曲测试。本研究中的光束结构具有双帽截面。环氧树脂基结构泡沫和33％短玻璃纤维增​​强尼龙插件被认为是两个空梁截面的复合填料。根据插入梁部分的复合材料的不同组合，考虑了四种情况。试验结果表明，复合材料插入件对改善梁结构的能量吸收有很大贡献。显示并分析了弯曲试验的力-位移（F-D）曲线，梁结构的变形行为以及复合材料插入物的破坏模式，以了解复合材料插入物对弯曲状态下梁结构耐撞性的影响。进行了数值研究，以开发钢-复合组合结构的实用有限元（FE）模型。

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