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Comparison of Continuum Shell and Solid Element-Based Modeling Strategies for Mesoscale Progressive Damage Analysis of Fiber Composites

Völkerink, Oliver and Koord, Josef and Petersen, Enno and Hühne, Christian (2023) Comparison of Continuum Shell and Solid Element-Based Modeling Strategies for Mesoscale Progressive Damage Analysis of Fiber Composites. Mechanics of Composite Materials, 59 (2), pp. 219-238. Springer. doi: 10.1007/s11029-023-10093-y. ISSN 0191-5665.

[img] PDF - Only accessible within DLR bis 1 May 2024 - Postprint version (accepted manuscript)

Official URL: https://link.springer.com/article/10.1007/s11029-023-10093-y


Failure behavior prediction of carbon fiber reinforced plastics (CFRP) is a challenging task. Several damage mechanisms, which have to be considered for an adequate determination of a structures load-carrying capacity, occur. These failure types interact and several individual failure types can occur sequentially before the limit of the load-carrying capacity is reached. In the relevant literature, different mesoscale modeling strategies for the Progressive Damage Analysis (PDA) are available. For example, the individual plies can be modeled with Continuum Damage Mechanics (CDM) using solid or continuum shell elements. In addition, Fracture Mechanics (FM) can be used to model failure in the through-thickness direction. However, no modeling recommendations or guideline are available to decide for a modeling strategy as a trade-off between accuracy and numerical effort. In this work, several modeling strategies are compared by their prediction accuracy and calculation effort with the help of an Open Hole Tension (OHT) test campaign performed by the authors. Using these OHT specimens with different layups made from M21-T700GC thermoset CFRP material, Abaqus/Explicit was used in combination with a user-defined material model which uses Cuntze’s Failure Mode Concept in 2D for continuum shell and in 3D for solid elements to predict damage initiation and progression in the plies. Each of the two variants is optionally combined with cohesive contacts to model delamination. Two modeling strategies can be recommended. An efficient variant based solely on CDM and a more complex one combining CDM with FM to model interlaminar failure.

Item URL in elib:https://elib.dlr.de/194802/
Document Type:Article
Title:Comparison of Continuum Shell and Solid Element-Based Modeling Strategies for Mesoscale Progressive Damage Analysis of Fiber Composites
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Völkerink, OliverUNSPECIFIEDhttps://orcid.org/0000-0002-9589-1963UNSPECIFIED
Koord, JosefUNSPECIFIEDhttps://orcid.org/0000-0002-2749-1546UNSPECIFIED
Petersen, EnnoUNSPECIFIEDhttps://orcid.org/0000-0002-1488-5618UNSPECIFIED
Hühne, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-2218-1223134156991
Date:21 April 2023
Journal or Publication Title:Mechanics of Composite Materials
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 219-238
Keywords:Damage mechanics, Finite element analysis (FEA), Failure criterion, Non-linear behaviour, Plastic deformation, Fibre reinforced plastics, open-hole tension
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:Institut für Systemleichtbau > Composite Design
Deposited By: Völkerink, Dr. Oliver
Deposited On:02 May 2023 11:05
Last Modified:02 May 2023 11:05

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