Applied Mathematics and Mechanics (English Edition) ›› 2016, Vol. 37 ›› Issue (11): 1517-1538.doi: https://doi.org/10.1007/s10483-016-2104-9

• 论文 • 上一篇    下一篇

Harten-Lax-van Leer-contact (HLLC) approximation Riemann solver with elastic waves for one-dimensional elasticplastic problems

Junbo CHENG   

  1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • 收稿日期:2016-01-25 修回日期:2016-05-06 出版日期:2016-11-01 发布日期:2016-11-01
  • 通讯作者: Junbo CHENG E-mail:chengjunbo@iapcm.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Nos.11172050 and 11672047) and the Science and Technology Foundation of China Academy of Engineering Physics (No.2013A0202011)

Harten-Lax-van Leer-contact (HLLC) approximation Riemann solver with elastic waves for one-dimensional elasticplastic problems

Junbo CHENG   

  1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • Received:2016-01-25 Revised:2016-05-06 Online:2016-11-01 Published:2016-11-01
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos.11172050 and 11672047) and the Science and Technology Foundation of China Academy of Engineering Physics (No.2013A0202011)

摘要:

A Harten-Lax-van Leer-contact (HLLC) approximate Riemann solver is built with elastic waves (HLLCE) for one-dimensional elastic-plastic flows with a hypoelastic constitutive model and the von Mises' yielding criterion.Based on the HLLCE,a third-order cell-centered Lagrangian scheme is built for one-dimensional elastic-plastic problems.A number of numerical experiments are carried out.The numerical results show that the proposed third-order scheme achieves the desired order of accuracy.The third-order scheme is used to the numerical solution of the problems with elastic shock waves and elastic rarefaction waves.The numerical results are compared with a reference solution and the results obtained by other authors.The comparison shows that the presented high-order scheme is convergent,stable,and essentially non-oscillatory.Moreover,the HLLCE is more efficient than the two-rarefaction Riemann solver with elastic waves (TRRSE).

关键词: Harten-Lax-van Leer-contact (HLLC)Riemann solver with elastic waves, cell-centered Lagrangian scheme, high-order scheme, hypo-elastic constitutive model, elastic-plastic flow

Abstract:

A Harten-Lax-van Leer-contact (HLLC) approximate Riemann solver is built with elastic waves (HLLCE) for one-dimensional elastic-plastic flows with a hypoelastic constitutive model and the von Mises' yielding criterion.Based on the HLLCE,a third-order cell-centered Lagrangian scheme is built for one-dimensional elastic-plastic problems.A number of numerical experiments are carried out.The numerical results show that the proposed third-order scheme achieves the desired order of accuracy.The third-order scheme is used to the numerical solution of the problems with elastic shock waves and elastic rarefaction waves.The numerical results are compared with a reference solution and the results obtained by other authors.The comparison shows that the presented high-order scheme is convergent,stable,and essentially non-oscillatory.Moreover,the HLLCE is more efficient than the two-rarefaction Riemann solver with elastic waves (TRRSE).

Key words: cell-centered Lagrangian scheme, high-order scheme, hypo-elastic constitutive model, Harten-Lax-van Leer-contact (HLLC)Riemann solver with elastic waves, elastic-plastic flow

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