Shape optimization of hyperelastic structures subject to frictionless contact
Sjövall, Filip LU
; Wallin, Mathias
LU
and Tortorelli, Daniel
(2024)
In Computers & Structures
301.
- Abstract
- This paper describes the shape optimization of hyperelastic structures exhibiting finite deformation and contact. The structure's shapes are parameterized with B-splines and the spline control point coordinates serve as the design variables. This design parametrization provides precise boundary representations and analytical sensitivity computations. To accommodate non-matching grids between the contacting bodies the mortar method is employed and, to hasten computations the accelerated Uzawa scheme is used to solve the displacement and contact pressure update equations. The formulation is used to optimize structures to achieve the desired mechanical response by exploiting both the non-linear hyperelastic material response and the contact... (More)
- This paper describes the shape optimization of hyperelastic structures exhibiting finite deformation and contact. The structure's shapes are parameterized with B-splines and the spline control point coordinates serve as the design variables. This design parametrization provides precise boundary representations and analytical sensitivity computations. To accommodate non-matching grids between the contacting bodies the mortar method is employed and, to hasten computations the accelerated Uzawa scheme is used to solve the displacement and contact pressure update equations. The formulation is used to optimize structures to achieve the desired mechanical response by exploiting both the non-linear hyperelastic material response and the contact phenomena. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3892ad7e-7ff3-431c-b52e-ef8ecf74b71e
- author
- Sjövall, Filip
LU
; Wallin, Mathias
LU
and Tortorelli, Daniel
- organization
- publishing date
- 2024-09-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Computers & Structures
- volume
- 301
- article number
- 107426
- publisher
- Elsevier
- external identifiers
-
- scopus:85194825169
- ISSN
- 1879-2243
- DOI
- 10.1016/j.compstruc.2024.107426
- language
- English
- LU publication?
- yes
- id
- 3892ad7e-7ff3-431c-b52e-ef8ecf74b71e
- date added to LUP
- 2024-06-07 10:45:48
- date last changed
- 2024-06-10 11:14:55
@article{3892ad7e-7ff3-431c-b52e-ef8ecf74b71e,
abstract = {{This paper describes the shape optimization of hyperelastic structures exhibiting finite deformation and contact. The structure's shapes are parameterized with B-splines and the spline control point coordinates serve as the design variables. This design parametrization provides precise boundary representations and analytical sensitivity computations. To accommodate non-matching grids between the contacting bodies the mortar method is employed and, to hasten computations the accelerated Uzawa scheme is used to solve the displacement and contact pressure update equations. The formulation is used to optimize structures to achieve the desired mechanical response by exploiting both the non-linear hyperelastic material response and the contact phenomena.}},
author = {{Sjövall, Filip and Wallin, Mathias and Tortorelli, Daniel}},
issn = {{1879-2243}},
language = {{eng}},
month = {{09}},
publisher = {{Elsevier}},
series = {{Computers & Structures}},
title = {{Shape optimization of hyperelastic structures subject to frictionless contact}},
url = {{http://dx.doi.org/10.1016/j.compstruc.2024.107426}},
doi = {{10.1016/j.compstruc.2024.107426}},
volume = {{301}},
year = {{2024}},
}