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Finite element analysis of thermoelastic contact problem in functionally graded axisymmetric brake disks

机译：功能梯度轴对称制动盘热弹性接触问题的有限元分析

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摘要

An analysis of thermoelastic contact problem of functionally graded (FG) rotating brake disk with heat source due to contact friction is presented. Finite element method (FEM) is used. The material properties of disk are assumed to be represented by power-law distributions in the radial direction. The inner and outer surfaces considered are metal and ceramic, respectively. Pure material is considered for the brake pad. Coulomb contact friction is assumed as the heat source. It is divided into two equal parts between pad and brake disk which leads to thermal stresses. Mechanical response of FG disks are compared and verified with the known results from the literatures. The results show that the maximum value of radial displacement in mounted FG brake disk is not at outer surface. It is found that the all areas between pad and brake disk is in full-contact status when the ratio of pad thickness to brake disk thickness is 0.66. It is observed that the total strain due to thermomechanical load is negative for some parts of the disks, whereas, the thermal strains are always positive. It can be concluded that gradation index of the metal-ceramic has significant effect in the thermomechanical response of FG disks.
机译：提出了功能梯度（FG）旋转制动盘与热源接触摩擦引起的热弹性接触问题的分析。使用了有限元方法（FEM）。假定盘的材料特性由径向上的幂律分布表示。所考虑的内表面和外表面分别是金属和陶瓷。刹车片采用纯净材料。库仑接触摩擦被认为是热源。它在制动衬块和制动盘之间分成两个相等的部分，这会导致热应力。将FG磁盘的机械响应与文献中的已知结果进行比较和验证。结果表明，安装的FG制动盘的径向位移最大值不在外表面。发现当衬块厚度与制动盘厚度之比为0.66时，衬块与制动盘之间的所有区域均处于全接触状态。可以看出，由于热机械负载而导致的总应变在磁盘的某些部分为负，而热应变始终为正。可以得出结论，金属陶瓷的灰度指数对FG盘的热机械响应具有显着影响。

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  • 来源
    《Composite Structures》 |2010年第7期|p.1591-1602|共12页
  • 作者

    M.M. Shahzamanian; B.B. Sahari; M. Bayat; F. Mustapha; Z.N. Ismarrubie;

  • 作者单位

    Mechanical and Manufacturing Engineering Department, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia Institute of Advance Technology (ITMA), Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia;

    Mechanical and Manufacturing Engineering Department, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia Institute of Advance Technology (ITMA), Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia;

    Institute of Advance Technology (ITMA), Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia Mechanical Engineering Department, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Aerospace Engineering Department, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia;

    Mechanical and Manufacturing Engineering Department, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    functionally graded material; brake disk; finite element method; thermoelastic;

    机译：功能分级材料;制动盘有限元法热弹性;

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