汽车工程

汽车工程 ›› 2023, Vol. 45 ›› Issue (3): 517-526.doi: 10.19562/j.chinasae.qcgc.2023.03.019

所属专题： 车身设计&轻量化&安全专题2023年

• • 上一篇    

车用纤维金属层板构件冲压变形行为研究

陈一哲1,2,3,范宏德1,2,王祎纯2,王辉1,2,4(),李俊3,华林1,2   

  1. 1.武汉理工大学，现代汽车零部件技术湖北省重点实验室，武汉 　430070
    2.武汉理工大学汽车工程学院，武汉 　430070
    3.江苏新扬新材料股份有限公司，扬州 　225000
    4.武汉理工大学，湖北省材料绿色精密成形工程技术研究中心，武汉 　430070
  • 收稿日期:2022-09-04 修回日期:2022-10-14 出版日期:2023-03-25 发布日期:2023-03-22
  • 通讯作者: 王辉 E-mail:huiwang@whut.edu.cn
  • 基金资助:
    青年人才托举工程（2021QNRC001）、中国博士后科学基金（2022T150278，2022M710062）和国家自然科学基金（52175360）资助。

Research on Stamping Deformation of Automotive Fiber Metal Laminates

Yizhe Chen1,2,3,Hongde Fan1,2,Yichun Wang2,Hui Wang1,2,4(),Jun Li3,Lin Hua1,2   

  1. 1.Wuhan University of Technology，Hubei Key Laboratory of Advanced Technology for Automotive Components，Wuhan 　430070
    2.School of Automotive Engineering，Wuhan University of Technology，Wuhan 　430070
    3.Jiangsu Xinyang New Material Co. ，Ltd. ，Yangzhou 　225000
    4.Wuhan University of Technology，Hubei Engineering Research Center for Green & Precision Material Forming，Wuhan 　430070
  • Received:2022-09-04 Revised:2022-10-14 Online:2023-03-25 Published:2023-03-22
  • Contact: Hui Wang E-mail:huiwang@whut.edu.cn

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摘要：

纤维金属层板（fiber metal laminate， FML）是一种新型轻量化混杂材料，逐渐被应用于汽车等运载装备领域，但其成形过程受多种参数影响，成形过程中的应力应变分布规律尚不清楚。选用T300碳纤维铝合金复合层板为研究对象，利用ABAQUS有限元软件对其冲压成形过程进行模拟，并进行了精度验证。主要研究了FML在预浸料种类、层板厚度和层板数等因素的影响下，应力分布及壁厚变化规律。结果表明，建立的FML冲压模型计算精度准确，预浸料种类主要影响纤维层的应力分布和壁厚变化，层板厚度和层板数对各层的壁厚变化产生影响，通过减薄层板厚度或增加层板数可以缓解过度减薄问题，层板厚度和层数也会影响铝合金层的应力分布，随着厚度和层数的增加，铝合金层的应力分布趋于均匀。

关键词: 纤维金属层板, 汽车轻量化, 冲压成形, 数值模拟, 应力与壁厚分布

Abstract:

Fiber Metal Laminate （FML） is a new type of lightweight hybrid material， which is gradually used in the field of transportation equipment such as automobiles. However， its forming process is affected by various parameters， and the distribution law of stress and strain in the forming process is still unclear. In this paper， T300 carbon fiber aluminum alloy composite laminate is selected as the research object. Its stamping forming process is simulated by ABAQUS finite element software， and the accuracy is verified. The stress distribution and wall thickness change law of FML under the influence of factors such as the type of prepreg， the thickness of the laminate and the number of laminates are studied. The results show that the calculation of the established FML stamping model is accurate. The type of prepreg mainly affects the stress distribution and wall thickness change of the fiber layer. The thickness of the laminate and the number of laminate have impact on the wall thickness change of each layer. By reducing the thickness of the laminate or increasing the number of layers can alleviate the problem of excessive thinning. The thickness and number of layers also affect the stress distribution of the aluminum alloy layer. With the increase of the thickness and number of layers， the stress distribution of the aluminum alloy layer tends to be uniform.

Key words: fiber metal laminate, automobile lightweight, stamping, numerical simulation, stress and wall thickness distribution