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Strain localization analysis of Hill’s orthotropic elastoplasticity: analytical results and numerical verification

Author
Cervera, M.; Wu, J.; Chiumenti, M.; Kim, Sungchul
Type of activity
Journal article
Journal
Computational mechanics
Date of publication
2020-02
Volume
65
Number
2
First page
533
Last page
554
DOI
10.1007/s00466-019-01782-4
Project funding
Computational Framework for Additive Manufacturing of Titanium Alloy
Repository
http://hdl.handle.net/2117/177376 Open in new window
https://www.researchgate.net/publication/336346775_Strain_localization_analysis_of_Hill's_orthotropic_elastoplasticity_Analytical_results_and_numerical_verification Open in new window
URL
https://link.springer.com/article/10.1007/s00466-019-01782-4 Open in new window
Abstract
In this work the strain localization analysis of Hill’s orthotropic plasticity is addressed. In particular, the localization condition derived from the boundedness of stress rates together with Maxwell’s kinematics is employed. Similarly to isotropic plasticity considered in our previous work, the plastic flow components on the discontinuity surface vanish upon strain localization. The resulting localization angles in orthotropic plastic materials are independent from the elastic constants, ...
Citation
Cervera, M. [et al.]. Strain localization analysis of Hill’s orthotropic elastoplasticity: analytical results and numerical verification. "Computational mechanics", Febrer 2020, vol. 65, núm. 2, p. 533-554.
Keywords
Bifurcation, Orthotropic incompressibility, Plasticity, Strain localization
Group of research
(MC)2 - UPC Computational continuum mechanics
RMEE - Strength of Materials and Structural Engineering Research Group

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