...
首页> 外文期刊>Latin American Journal of Solids and Structures >Elasto-Plastic Stress Analysis in Rotating Disks and Pressure Vessels Made of Functionally Graded Materials
【24h】

Elasto-Plastic Stress Analysis in Rotating Disks and Pressure Vessels Made of Functionally Graded Materials

机译:功能梯度材料制成的转盘和压力容器中的弹塑性应力分析

获取原文
   

获取外文期刊封面封底 >>

       

摘要

Abstract A new elastio-plastic stress solution in axisymmetric problems (rotating disk, cylindrical and spherical vessel) is presented. The rotating disk (cylindrical and spherical vessel) was made of a ceramic/metal functionally graded material, i.e. a particle-reinforced composite. It was assumed that the material's plastic deformation follows an isotropic strain-hardening rule based on the von-Mises yield criterion. The mechanical properties of the graded material were modeled by the modified rule of mixtures. By assuming small strains, Hencky's stress-strain relation was used to obtain the governing differential equations for the plastic region. A numerical method for solving those differential equations was then proposed that enabled the prediction of stress state within the structure. Selected finite element results were also presented to establish supporting evidence for the validation of the proposed approach.
机译:摘要提出了一种解决轴对称问题(旋转盘,圆柱和球形容器)的新的弹塑性应力解决方案。旋转盘(圆柱形和球形容器)由陶瓷/金属功能梯度材料,即颗粒增强的复合材料制成。假定材料的塑性变形遵循基于von-Mises屈服准则的各向同性应变硬化规则。梯度材料的机械性能通过混合物的修正规则进行建模。通过假定较小的应变,使用Hencky的应力-应变关系来获得塑性区域的控制微分方程。然后提出了一种求解这些微分方程的数值方法,该方法能够预测结构内的应力状态。还介绍了选定的有限元结果,以建立验证所提出方法的支持证据。

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