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Rate dependent comp...
Rate dependent compressive failure and delamination growth in multidirectional composite laminates
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- Singh, Vivekendra, 1987 (författare)
- RISE,Polymer, fiber och komposit,Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Larsson, Ragnar, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden
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- Olsson, Robin, 1958 (författare)
- RISE,Polymer, fiber och komposit,Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Marklund, Erik, 1985- (författare)
- RISE,Polymer, fiber och komposit,RISE Research Institutes of Sweden
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(creator_code:org_t)
- SAGE Publications Ltd, 2024
- 2024
- Engelska.
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Ingår i: Journal of Composite Materials. - : SAGE Publications Ltd. - 1530-793X .- 0021-9983. ; 58:3, s. 419-431
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- A novel intralaminar model has, for the first time, been applied and validated for the rate-dependent failure of multidirectional carbon/epoxy laminates. Quasi-static compressive failure is evaluated by the growth of intralaminar ratedependent damage combined with the interaction of cohesive zones for interlaminar delamination. A special feature of the intralaminar model is the homogenised ply response, allowing simultaneous damage-degradation of the polymer matrix combined with the fibres. To model the observed quasi-brittle failure response of the plies under finite deformation, we have used a viscoelastic-viscoplastic matrix combined with damage and isotropic hardening behaviour. Elastic transverse isotropy is used to model the fibre reinforcement of the plies. Standard cohesive surfaces are used to model the initiation and propagation of delamination. Numerical simulations using ABAQUS/Explicit are performed to predict the growth and delamination of intralaminar damage under compression in different laminates with 56 plies of IM7/8552 carbon/epoxy. Predictions of stress versus strain and damage growth are shown to agree well with experimental results for a range of strain rates and stacking sequences.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- delamination
- isotropic hardening
- continuum damage
- cohesive surface
- Angle-ply laminate
- viscoelasticity-viscoplasticity
Publikations- och innehållstyp
- for (ämneskategori)
- ref (ämneskategori)
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