Print Email Facebook Twitter On the Numerical Implementation of a Thermomechanical Hyperplasticity Model for Fine-Grained Soils Title On the Numerical Implementation of a Thermomechanical Hyperplasticity Model for Fine-Grained Soils Author Golchin, A. (TU Delft Geo-engineering) Vardon, P.J. (TU Delft Geo-engineering) Hicks, M.A. (TU Delft Geo-engineering) Coombs, William M. (Durham University) Pantev, I.A. (TU Delft Civil Engineering & Geosciences) Contributor Barla, Marco (editor) Di Donna, Alice (editor) Sterpi, Donatella (editor) Faculty Civil Engineering & Geosciences Date 2021 Abstract The numerical implementation of a recently developed thermomechanical constitutive model for fine-grained soils based on hyperelasticity-hyperplasticity theory (Golchin et al. 2020), is presented. A new unconventional implicit stress return mapping algorithm, compatible with elasticity derived from Gibbs (complementary) energy potential, in strain invariant space, is designed and the consistent tangent operator for use in boundary value problems (such as in the finite element method) is derived. It is shown that the rate of convergence of the stress integration algorithm is quadratic. The numerical results are in good agreement with available data from thermomechanical element tests found in literature. Subject Gibbs free energyHyperplasticityImplicit integrationThermomechanical model To reference this document use: http://resolver.tudelft.nl/uuid:5624d577-60f3-4f9e-9dc9-646e3e6dfdc3 DOI https://doi.org/10.1007/978-3-030-64514-4_40 Publisher Springer, Cham Embargo date 2021-07-15 ISBN 9783030645137 Source Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1 Event 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2021, 2021-05-05 → 2021-05-08, Turin, Italy Series Lecture Notes in Civil Engineering, 2366-2557, 125 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2021 A. Golchin, P.J. Vardon, M.A. Hicks, William M. Coombs, I.A. Pantev Files PDF Golchin2021_Chapter_OnThe ... tionOf.pdf 494.25 KB Close viewer /islandora/object/uuid:5624d577-60f3-4f9e-9dc9-646e3e6dfdc3/datastream/OBJ/view