Dr Stefano Giani stefano.giani@durham.ac.uk
Associate Professor
On Effective Material Parameters of Thin Perforated Shells under Static Loading
Giani, S.; Hakula, H.
Authors
H. Hakula
Abstract
One of the defining properties of thin shell problems is that the solution can be viewed as a linear combination of local features, each with its own characteristic thickness-dependent length scale. For perforated shells it is thus possible that for the given dimensionless thickness, the local features dominate, and the problem of deriving effective material parameters becomes ill-posed. In the general case, one has to account for many different aspects of the problem that directly affect the effective material parameters. Through a computational study we derive a conjecture for the admissible thickness-ranges. The effective material parameters are derived with a minimisation process over a set of feasible instances. The efficacy of the conjecture and the minimisation process is demonstrated with an extensive set of numerical experiments.
Citation
Giani, S., & Hakula, H. (2020). On Effective Material Parameters of Thin Perforated Shells under Static Loading. Computer Methods in Applied Mechanics and Engineering, 367, Article 113094. https://doi.org/10.1016/j.cma.2020.113094
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 22, 2020 |
Online Publication Date | May 18, 2020 |
Publication Date | Aug 1, 2020 |
Deposit Date | Apr 23, 2020 |
Publicly Available Date | May 18, 2021 |
Journal | Computer Methods in Applied Mechanics and Engineering |
Print ISSN | 0045-7825 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 367 |
Article Number | 113094 |
DOI | https://doi.org/10.1016/j.cma.2020.113094 |
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http://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2020 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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