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A novel stress-accurate FE technology for highly non-linear analysis with incompressibility constraint: application to the numerical simulation of the FSW process

Author
Chiumenti, M.; Cervera, M.; Agelet De Saracibar, C.; Dialamishabankareh, N.
Type of activity
Presentation of work at congresses
Name of edition
11th International Conference on Numerical Methods in Industrial Forming Processes
Date of publication
2013
Presentation's date
2013-07
Book of congress proceedings
The 11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM2013: Shenyang, China, 6-10 July 2013
First page
45
Last page
56
Publisher
American Institute of Physics (AIP)
DOI
https://doi.org/10.1063/1.4806808 Open in new window
Repository
http://hdl.handle.net/2117/19984 Open in new window
URL
http://proceedings.aip.org/resource/2/apcpcs/1532/1/45_1 Open in new window
Abstract
In this work a novel finite element technology based on a three-field mixed formulation is presented. The Variational Multi Scale (VMS) method is used to circumvent the LBB stability condition allowing the use of linear piece-wise interpolations for displacement, stress and pressure fields, respectively. The result is an enhanced stress field approximation which enables for stress-accurate results in nonlinear computational mechanics. The use of an independent nodal variable for the pressure fie...
Citation
Chiumenti, M. [et al.]. A novel stress-accurate FE technology for highly non-linear analysis with incompressibility constraint: application to the numerical simulation of the FSW process. A: International Conference on Numerical Methods in Industrial Forming Processes. "The 11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM2013: Shenyang, China, 6-10 July 2013". Shenyang: American Institute of Physics (AIP), 2013, p. 45-56.
Keywords
finite element analysis, forming processes, friction welding, interpolation, mechanical contact, piecewise linear techniques, shear modulus, stress analysis, surface treatment, thermomechanical treatment, viscoplasticity
Group of research
(MC)2 - Group of Computational Mechanics on Continuous Medium
(MC)2 - UPC Computational continuum mechanics

Participants