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Kappel, Erik (2022) On invariant combinations of Qij coefficients and a novel invariant IQ. Composites Part C: Open Access. Elsevier. doi: 10.1016/j.jcomc.2022.100335. ISSN 2666-6820.
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Official URL: https://www.sciencedirect.com/science/article/pii/S2666682022000986
Abstract
Invariants of the plane-stress elasticity stiffness matrix [Q] play a key role in composite design, as they simplify design processes. Multiple invariants have been proposed independently in the past, such as the 'trace' Tr=trace([Q]) by Tsai and Melo or the invariants U1, U4 and [U5] which are often used in context of lamination parameters. The present paper presents a parametric description of rotation-independent (invariant) linear combinations of the coefficients Qij of [Q]. It is shown that the aforementioned invariants are special cases of the developed parametric description, in which a novel invariant IQ=Q11+Q22+Q12+Q66 plays a key-role
| Item URL in elib: | https://elib.dlr.de/192521/ | ||||||||
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| Document Type: | Article | ||||||||
| Title: | On invariant combinations of Qij coefficients and a novel invariant IQ | ||||||||
| Authors: |
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| Date: | 10 December 2022 | ||||||||
| Journal or Publication Title: | Composites Part C: Open Access | ||||||||
| Refereed publication: | Yes | ||||||||
| Open Access: | Yes | ||||||||
| Gold Open Access: | Yes | ||||||||
| In SCOPUS: | Yes | ||||||||
| In ISI Web of Science: | Yes | ||||||||
| DOI: | 10.1016/j.jcomc.2022.100335 | ||||||||
| Publisher: | Elsevier | ||||||||
| ISSN: | 2666-6820 | ||||||||
| Status: | Published | ||||||||
| Keywords: | Composite design Invariants Parametric form Generalization | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | Components and Systems | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L CS - Components and Systems | ||||||||
| DLR - Research theme (Project): | L - Structural Materials and Design | ||||||||
| Location: | Braunschweig | ||||||||
| Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures | ||||||||
| Deposited By: | Kappel, Dr.-Ing. Erik | ||||||||
| Deposited On: | 19 Dec 2022 07:55 | ||||||||
| Last Modified: | 19 Dec 2022 07:55 |
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