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L. Moreno, L. Saucedo, M.A. Sánz, F.J. Montáns, "Advances in Computational Constitutive Modeling", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 1.1, 2023, doi:10.4203/ccc.6.1.1

Keywords: hyperelasticity, polymers, soft materials, plasticity, viscoelasticity, crystal plasticity.

Abstract

Constitutive models are a key ingredient of finite element procedures. Robust and efficient finite element solutions requiere sound physically motivated multiaxial models that, at the same time, are simple, efficient and as general as possible. Furthermore, material parameters should be reduced to a minimum and, if possible, either obtained directly from experimental measurements or obtained through automatic procedures. In this paper we overview recent advances in large strain constitutive models following these principles. In the first part, we address the main ideas behind a new class of hyperelastic models which parameters can be automatically obtained from experimental measurements. In the second part we address a new class of constitutive models for multiaxial, anisotropic viscoelasticity and plasticity, which is based on the elastic corrector rate concept, and whose algorithms result in plain backward-Euler updates. These formulations also bring an identical framework in both continuum and crystal plasticity.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 6 PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Ivanyi, J. Kruis and B.H.V. Topping Paper 1.1 Advances in Computational Constitutive Modeling L. Moreno¹, L. Saucedo¹ M.A. Sánz¹ and F.J. Montáns^1,2 ¹Universidad Politécnica de Madrid, Madrid, Spain ²University of Florida, Gainesville, Florida, United States of America doi:10.4203/ccc.6.1.1 Full Bibliographic Reference for this paper L. Moreno, L. Saucedo, M.A. Sánz, F.J. Montáns, "Advances in Computational Constitutive Modeling", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 1.1, 2023, doi:10.4203/ccc.6.1.1 Keywords: hyperelasticity, polymers, soft materials, plasticity, viscoelasticity, crystal plasticity. Abstract Constitutive models are a key ingredient of finite element procedures. Robust and efficient finite element solutions requiere sound physically motivated multiaxial models that, at the same time, are simple, efficient and as general as possible. Furthermore, material parameters should be reduced to a minimum and, if possible, either obtained directly from experimental measurements or obtained through automatic procedures. In this paper we overview recent advances in large strain constitutive models following these principles. In the first part, we address the main ideas behind a new class of hyperelastic models which parameters can be automatically obtained from experimental measurements. In the second part we address a new class of constitutive models for multiaxial, anisotropic viscoelasticity and plasticity, which is based on the elastic corrector rate concept, and whose algorithms result in plain backward-Euler updates. These formulations also bring an identical framework in both continuum and crystal plasticity. download the full-text of this paper (PDF, 14 pages, 774 Kb) go to the next paper return to the table of contents return to the volume description
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