...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the institution of mechanical engineers >Transient thermoelastic investigation of FGM composite plate with varying grading parameter
【24h】

Transient thermoelastic investigation of FGM composite plate with varying grading parameter

机译：梯度参数变化下FGM复合板的瞬态热弹性研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Functionally graded materials (FGM) are newly developed materials described by variation in the characteristics gradually over volume. These materials find applications in very high temperature environments namely aerospace industry, nuclear reactors, gas turbines, and electronics cooling. These materials are used in high temperature environments with dynamic load conditions, so their transient thermoelastic analysis under these conditions is necessary. In this paper, transient thermoelastic investigation of FGM is carried out using finite element method (FEM). The effect of temperature dependence is considered in the thermophysical properties of a FGM plate in the direction of its thickness. FEM is applied to solve the thermo mechanical equations and Newmark direct integration scheme is used for obtaining the solution for transient loading. This method improves the accuracy for three dimensional cases and produces solutions directly in time domain. A comparative study is made with some existing methods, and it is found that temperature and thermal stresses remain within safe limits at higher temperatures while preserving the deformation in the structure. The results show that the grading parameter has a dominating effect on transient thermoelastic behavior on FGM plate.
机译：功能梯度材料（FGM）是新开发的材料，其特征是随着体积逐渐变化。这些材料可用于高温环境，即航空航天工业，核反应堆，燃气轮机和电子设备冷却。这些材料用于动态负载条件下的高温环境，因此在这些条件下进行瞬态热弹性分析是必要的。本文采用有限元方法（FEM）对FGM进行了瞬态热弹性研究。在FGM板的厚度方向上的热物理性质中考虑了温度依赖性的影响。有限元法用于求解热力学方程，Newmark直接积分方案用于获得瞬态载荷的解。这种方法提高了三维情况下的精度，并直接在时域中产生解决方案。使用一些现有方法进行了比较研究，发现温度和热应力在较高温度下仍保持在安全范围内，同时保留了结构中的变形。结果表明，梯度参数对FGM板的瞬态热弹性行为起主要作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号