首页|拉挤复合材料在电池包膨胀梁应用分析

拉挤复合材料在电池包膨胀梁应用分析

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拉挤复合材料是一种通过拉挤方式制成的材料,这是一种连续的制造工艺,具有比强度和比刚度高、相比常规的金属结构减重(25~30)%,并可明显提高车辆性能.本文对聚氨酯树脂+60%玻纤通过拉挤工艺,通过拉挤复合与铝合金材料性能对比分析,以电池包内膨胀梁为例,相同载荷作用下,金属接头的最大应力为 130 MPa,以铸铝材料的拉伸强度为 330 MPa计算,金属接头的安全系数为 2.54,其最大承载能力约为 9 144 N;复合材料接头泡沫的最大应力为 0.1 MPa,层合板皮层的最大失效因子仅为 0.011.因此,在承受拉伸压缩载荷作用时,复合材料接头具有更高的强度,为后续拉挤复合材料的研究应用提供技术参考.
Application Analysis of Pultrusion Composite Material in Battery Pack Expansion Beam
Pultrusion composite material is a material made through the pultrusion process,which is a continuous manufacturing process with high specific strength and stiffness,a weight reduction of(25~30)%compared to conventional metal structures,and can significantly improve vehicle performance.This article compares the performance of polyurethane resin+60%glass fiber through pultrusion process and aluminum alloy material.Taking the expansion beam inside the battery pack as an example,under the same load,the maximum stress of the metal joint is 130 MPa.Calculated based on the tensile strength of cast aluminum material of 330 MPa,the safety factor of the metal joint is 2.54,and its maximum bearing capacity is about 9 144 N;The maximum stress of the composite joint foam is 0.1 MPa,and the maximum failure factor of the laminated plate skin is only 0.011.Therefore,when subjected to tensile and compressive loads,composite joints have higher strength,providing technical reference for the subsequent research and application of pultruded composite materials.

pultrusion composite materialsbattery packexpansion beamlightweight

李宁、朱长春、李文中

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吉利汽车研究院(宁波)有限公司,宁波 315336

拉挤复合材料 电池包 膨胀梁 轻量化

2024

环境技术
广州电器科学研究院有限公司

环境技术

CSTPCD
影响因子:0.995
ISSN:1004-7204
年,卷(期):2024.42(11)