A thermoviscoplastic constitutive model is proposed to simulate the uniaxial/multiaxial ratcheting of cyclically stable materials and its finite element implementation is also achieved. The kinematic and isotropic hardening rules used in the proposed model are similar to that developed by Voyiadjis and Abu Al-Rub [1], except for the coupling with temperature and strain-rate effects. The proposed constitutive equations include thermo-elasto-viscoplasticity, a dynamic yield criterion of a von Mises type, the associated flow rules, non-linear strain hardening, strain-rate hardening, and temperature softening. In the finite element implementation of the proposed model new implicit stress integration algorithms are proposed. The proposed unified integration algorithms are extensions of the classical rate-independent radial return scheme to the rate-dependent problems. A new expression of consistent tangent modulus is also derived for rate- and temperature-dependent inelasticity. The proposed model is verified by simulating the uniaxial ratcheting of a metallic material.
Skip Nav Destination
ASME 2004 International Mechanical Engineering Congress and Exposition
November 13–19, 2004
Anaheim, California, USA
Conference Sponsors:
- Applied Mechanics Division
ISBN:
0-7918-4702-0
PROCEEDINGS PAPER
Finite Element Implementation of a Thermoviscoplastic Model for Ratcheting Available to Purchase
Rashid K. Abu Al-Rub,
Rashid K. Abu Al-Rub
Louisiana State University
Search for other works by this author on:
George Z. Voyiadjis
George Z. Voyiadjis
Louisiana State University
Search for other works by this author on:
Rashid K. Abu Al-Rub
Louisiana State University
George Z. Voyiadjis
Louisiana State University
Paper No:
IMECE2004-61734, pp. 37-45; 9 pages
Published Online:
March 24, 2008
Citation
Abu Al-Rub, RK, & Voyiadjis, GZ. "Finite Element Implementation of a Thermoviscoplastic Model for Ratcheting." Proceedings of the ASME 2004 International Mechanical Engineering Congress and Exposition. Applied Mechanics. Anaheim, California, USA. November 13–19, 2004. pp. 37-45. ASME. https://doi.org/10.1115/IMECE2004-61734
Download citation file:
12
Views
Related Proceedings Papers
Related Articles
Time Integration Algorithm for a Cyclic Damage Coupled Thermo-Viscoplasticity Model for 63Sn-37Pb Solder Applications
J. Electron. Packag (March,2004)
Effective Models for Prediction of Springback In Flanging
J. Eng. Mater. Technol (October,2001)
A Damage-Mechanics-Based Constitutive Model for Solder Joints
J. Electron. Packag (September,2005)
Related Chapters
Approximate Analysis of Plates
Design of Plate and Shell Structures
Fatigue Analysis in the Connecting Rod of MF285 Tractor by Finite Element Method
International Conference on Advanced Computer Theory and Engineering, 4th (ICACTE 2011)
List of Commercial Codes
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow