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Validation of a novel model for the compressive response of FRP: numerical simulation
RISE - Research Institutes of Sweden, Materials and Production, SICOMP. Chalmers University of Technology, Sweden.
RISE - Research Institutes of Sweden, Materials and Production, SICOMP.
RISE - Research Institutes of Sweden, Materials and Production, SICOMP.ORCID iD: 0000-0002-2627-3280
RISE - Research Institutes of Sweden, Materials and Production, SICOMP.
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2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

A progressive damage model for matrix compression is complemented with matrix tension in a physically based manner. The interaction of damage mechanisms undergoes a preliminary validation using single elements. The crushing response is validated with two different flat specimens with the fibres oriented transversely and at 45 degrees to the load. The model combines friction with damage to model the shear response accurately, which is necessary for reliable crush simulations. The behaviour in tension is history dependent, i.e. the model accounts for the stiffness reduction and strength to carry load in tension when previously damaged occurs in compression.The validation is performed against different tests showing the reliability of the model for different fibre orientation, specimen geometry and multiaxial loading scenarios. The crush response is well captured as well as the geometry and location of the different damage mechanisms.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Crushing, Damage modes, Friction, Damage mechanics
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-36298Scopus ID: 2-s2.0-85053166997OAI: oai:DiVA.org:ri-36298DiVA, id: diva2:1263501
Conference
21st International Conference on Composite Materials ICCM-21
Available from: 2018-11-15 Created: 2018-11-15 Last updated: 2019-08-15Bibliographically approved

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Olsson, Robin

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