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Failure analysis of hydroforming of sandwich panels

机译：夹芯板液压成形的失效分析

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摘要

Sandwich panels are commonly used in various applications to improve the stiffness-to-weight ratio of structure components. While producing flat sandwich panel is relatively straightforward, manufacturing of shaped sandwich components can be a challenging task. This paper presents the use of hydroforming technique in forming bi-layered and sandwich materials with an open-cell foam core. Hydraulic bulge experiments were conducted to form bi-layered and sandwich blanks into a dome shape. Various failure modes were observed from the experiments. Finite element simulations were conducted to understand the different failure mechanisms that could occur during the deformation process. The investigation can facilitate the selection of geometry and property of the constituents of the sandwich material for successful hydroforming.
机译：夹芯板通常用于各种应用中，以提高结构部件的刚度重量比。尽管生产平坦的夹心板是相对简单的，但是制造成形的夹心组件可能是一项艰巨的任务。本文介绍了液压成形技术在形成具有开孔泡沫芯的双层和三明治材料中的应用。进行了水力膨胀实验，以将双层和三明治坯料制成圆顶形状。从实验中观察到各种失效模式。进行了有限元模拟，以了解变形过程中可能发生的不同破坏机理。该研究可有助于选择夹心材料的成分的几何形状和性质，以成功进行液压成型。

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  • 来源
    《Journal of Manufacturing Processes》 |2013年第2期|256-262|共7页
  • 作者

    Jyhwen Wang; Cheng-Kang Yang;

  • 作者单位

    Department of Engineering Technology and Industrial Distribution, Texas A&M University, College Station, TX, USA,Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA;

    Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hydroforming; Sandwich panels; Failure analysis;

    机译：液压成型;夹心板;故障分析;

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