Loading...

Rate-dependent dynamic ALE analysis of finite deformation of elasto-viscoplastic solids

Tadi Beni, Y ; Sharif University of Technology | 2009

568 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.matdes.2008.12.021
  3. Publisher: 2009
  4. Abstract:
  5. In this paper, formulation and implementation of finite element analysis within an Arbitrary Lagrangian Eulerian (ALE) description is presented for large deformation analysis of elasto-viscoplastic materials. The rate effects are included using a consistent procedure. An implicit algorithm with backward Euler integration scheme is used to integrate the elasto-viscoplastic constitutive equations. Also, the closed form of the consistent tangent operator is derived using the momentum balance equation to reduce the computation time. A fully coupled ALE procedure is used which includes dynamic effects. The proposed algorithm is implemented in an ALE code and its effectiveness and efficiency is verified through several numerical simulation problems and comparison with available experimental results. © 2009 Elsevier Ltd. All rights reserved
  6. Keywords:
  7. Arbitrary lagrangian eulerian ; Backward euler ; Closed form ; Computation time ; Consistent procedures ; Consistent tangents ; Dynamic effects ; Elasto-viscoplastic ; Elastoviscoplastic materials ; Finite deformations ; Finite element analysis ; Fully-coupled ; Implicit algorithm ; Large deformation analysis ; Mechanical ; Momentum balance equations ; Numerical simulation ; Plastic behavior ; Rate effects ; Constitutive equations ; Deformation ; Euler equations ; Lagrange multipliers ; Mathematical operators ; Viscoplasticity ; Dynamic analysis
  8. Source: Materials and Design ; Volume 30, Issue 8 , 2009 , Pages 2995-3004 ; 02641275 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S026130690900003X