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Data-driven computational method for growth-induced deformation problems of soft materials.
- Source :
-
Acta Mechanica . Jan2024, Vol. 235 Issue 1, p441-466. 26p. - Publication Year :
- 2024
-
Abstract
- This paper presents a data-driven solver (DDS) for the growth-induced deformation problems of soft materials. Contrary to the over-reliance of traditional numerical methods on material constitutive models, the DDS requires only a discrete material dataset of stress–strain pairs to describe the stress–strain relationship. With the multiplicative decomposition of the gradient tensor, the growth effects are introduced. The growth-induced deformation problems are then solved as the pre-strain problems. To overcome the difficulty in determining the growth-induced pre-stress without an explicit constitutive model, a strain-driven searching scheme is thus proposed. Several numerical examples demonstrate the robustness and its good performance of the proposed DDS. In particular, the reason for choosing the strain-driven searching scheme is also illustrated according to the numerical example results. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DEFORMATIONS (Mechanics)
*STRAINS & stresses (Mechanics)
*PROBLEM solving
Subjects
Details
- Language :
- English
- ISSN :
- 00015970
- Volume :
- 235
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Acta Mechanica
- Publication Type :
- Academic Journal
- Accession number :
- 174761469
- Full Text :
- https://doi.org/10.1007/s00707-023-03742-9