Semi-Implicit Algorithm for Elastoplastic Damage Models Involving Energy Integration
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-23
Country of Publication
Egypt
No. of Pages
9
Abstract EN
This study aims to develop a semi-implicit constitutive integration algorithm for a class of elastoplastic damage models where calculation of damage energy release rates involves integration of free energy.
The constitutive equations with energy integration are split into the elastic predictor, plastic corrector, and damage corrector.
The plastic corrector is solved with an improved format of the semi-implicit spectral return mapping, which is characterized by constant flow direction and plastic moduli calculated at initial yield, enforcement of consistency at the end, and coordinate-independent formulation with an orthogonally similar stress tensor.
The tangent stiffness consistent with the updating algorithm is derived.
The algorithm is implemented with a recently proposed elastoplastic damage model for concrete, and several typical mechanical tests of reinforced concrete components are simulated.
The present semi-implicit algorithm proves to achieve a balance between accuracy, stability, and efficiency compared with the implicit and explicit algorithms and calculate free energy accurately with small time steps.
American Psychological Association (APA)
Zhang, Ji& Li, Jie. 2016. Semi-Implicit Algorithm for Elastoplastic Damage Models Involving Energy Integration. Advances in Materials Science and Engineering،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1096201
Modern Language Association (MLA)
Zhang, Ji& Li, Jie. Semi-Implicit Algorithm for Elastoplastic Damage Models Involving Energy Integration. Advances in Materials Science and Engineering No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1096201
American Medical Association (AMA)
Zhang, Ji& Li, Jie. Semi-Implicit Algorithm for Elastoplastic Damage Models Involving Energy Integration. Advances in Materials Science and Engineering. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1096201
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1096201