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Use of enriched she...
Use of enriched shell elements compared to solid elements for modelling delamination growth during impact on composites
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- McElroy, Mark (författare)
- NASA Johnson Space Center, USA
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- André, Alann (författare)
- RISE,Polymera material och kompositer
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- Goode, Tyler (författare)
- North Carolina State University, USA
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- Costa, Sergio (författare)
- RISE,Polymera material och kompositer
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- Olsson, Robin (författare)
- RISE,Polymera material och kompositer
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- Pankow, Mark (författare)
- North Carolina State University, USA
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(creator_code:org_t)
- Elsevier Ltd, 2021
- 2021
- Engelska.
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Ingår i: Composite structures. - : Elsevier Ltd. - 0263-8223 .- 1879-1085. ; 269
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Simulation of damage in composite laminates using currently available three-dimensional finite element tools is computationally demanding often to the point that analysis is not practical. This paper presents an enriched shell element that can provide a computationally efficient means to simulate low-velocity impact damage in a composite. The enriched element uses the Floating Node Method and a damage algorithm based on the Virtual Crack Closure Technique that is capable of simulating progressive damage growth consisting of delamination and delamination-migrations from ply to ply during a dynamic impact load. This paper presents results from the shell model in a test-analysis correlation for impact testing of 7-ply and 56-ply laminates. Analysis results from a separate high-fidelity three-dimensional finite element analysis are included also for comparison in the case of the 7-ply laminate, but not in the case the 56-ply laminate due to excessive computational demand. This paper serves as the first application of both models in low-velocity impact simulation. The shell model is considerably more computationally efficient than the high-fidelity model by at least an order of magnitude and is shown to produce results, while not as accurate as the high-fidelity model, potentially sufficiently accurate for a wide range of engineering applications including structural design and rapid prototype assessments.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- Delamination
- Laminates
- Low-velocity impact
- Mechanical testing
- Computational efficiency
- Crack closure
- Finite element method
- Impact testing
- Shells (structures)
- Composite laminate
- Computationally efficient
- Delamination growth
- High fidelity models
- Low velocity impact
- Mechanical
- Ply laminates
- Shell element
- Shell models
- Solid elements
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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