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Double–Double laminates for aerospace applications - Finding best laminates for given load sets

Kappel, Erik (2022) Double–Double laminates for aerospace applications - Finding best laminates for given load sets. Composites Part C: Open Access. Elsevier. doi: 10.1016/j.jcomc.2022.100244. ISSN 2666-6820.

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Official URL: https://www.sciencedirect.com/science/article/pii/S2666682022000135


The Double-Double (DD) family of laminates is characterized by the parametric laminate description [phi,-phi,psi,-psi]rT. DD promises considerable advantages for aerospace laminates, as the unique combination of the laminates' building-block architecture simplifies manufacturing and in particular laminate optimization. DD eliminates complicated permutation issues know from conventional laminates and allows for easy stiffness tailoring, by locally varying repeats r. The present paper proposes a DD-laminate optimization scheme for laminate-strength, which focusses on robustness in the identification of safe laminates. The scheme is presented for a multi-load scenario, each consisting of five individual loads. The combination of the Nettles circle failure enveloped in principle strain with the DD features lead to a rather simple optimization scheme, accompanied by meaningful illustrations, which are presented in the present paper.

Item URL in elib:https://elib.dlr.de/185945/
Document Type:Article
Title:Double–Double laminates for aerospace applications - Finding best laminates for given load sets
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kappel, ErikUNSPECIFIEDhttps://orcid.org/0000-0002-8760-8451UNSPECIFIED
Date:4 March 2022
Journal or Publication Title:Composites Part C: Open Access
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Keywords:Laminate optimization Double–Double laminates Light-weight design Automated manufacturing
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, R - Material Design and New Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Kappel, Dr.-Ing. Erik
Deposited On:11 Apr 2022 06:47
Last Modified:22 Jun 2022 04:13

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