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On the Progressive Failure Simulation and Experimental Validation of Fiber Metal Laminate Bolted Joints

Gerendt, Christian and Dean, Aarmir and Mahrholz, Thorsten and Rolfes, Raimund (2019) On the Progressive Failure Simulation and Experimental Validation of Fiber Metal Laminate Bolted Joints. Composite Structures, 229, p. 111368. Elsevier. doi: 10.1016/j.compstruct.2019.111368. ISSN 0263-8223.

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The joint efficiency of mechanical joints in fiber-reinforced composite materials can be increased significantly by embedding metal plies in the composite layup, as in the case of fiber metal laminates. In this work, a novel finite element-based framework is presented for predicting the static progressive failure behavior of fiber metal laminate bolted joints. Motivated from experimental observations, the proposed framework accounts not only for damage in the fiber-reinforced composite plies, but also for different types of damage of the metallic inlays. For this purpose, user-defined continuum-damage constitutive models are formulated and employed in the general-purpose FE software Abaqus/Implicit for the fiber-reinforced polymer plies and the embedded metallic inlays. Accordingly, the interaction between different failure modes and the influence of the bolt’s washer on the damage evolution is considered to increase the predictive quality. To demonstrate the applicability and validity of the developments, predictive simulations are carried out and compared to conducted experimental measurements on different fiber metal laminate grades (GFRP/stainless steel and CFRP/titanium) with a wide range of metal volume content, reaching from 0% (pure composite material) to 50%.

Item URL in elib:https://elib.dlr.de/139207/
Document Type:Article
Title:On the Progressive Failure Simulation and Experimental Validation of Fiber Metal Laminate Bolted Joints
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gerendt, ChristianISD, Uni HannoverUNSPECIFIED
Dean, AarmirISD, Uni HannoverUNSPECIFIED
Mahrholz, ThorstenThorsten.Mahrholz (at) dlr.dehttps://orcid.org/0000-0003-1488-0910
Rolfes, RaimundISD, Uni HannoverUNSPECIFIED
Journal or Publication Title:Composite Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.compstruct.2019.111368
Page Range:p. 111368
EditorsEmailEditor's ORCID iD
Keywords:Bolted joints, Continuum damage modeling, Experimental validation, Fiber metal laminates, Static progressive failure prediction
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Mahrholz, Dr.rer.nat. Thorsten
Deposited On:10 Dec 2020 10:02
Last Modified:23 Jul 2022 13:45

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