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Prediction of shape distortions: Part II. Experimental validation and analysis of boundary conditions
Luleå tekniska universitet.
SICOMP AB, Swedish Institute of Composites.
2004 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 35, no 6, p. 723-734Article in journal (Refereed) Published
Abstract [en]

During cure of thermoset composite structures residual stresses and/or shape distortions are always present. Residual stresses can cause apparent strength reduction or failure, even prior demoulding, respectively, shape distortions can deform a component so that the component becomes useless. For this reason a lot of effort has been spent to develop simulation tools to be able to foresee problems related to residual stresses and/or shape distortions and make the first part right. In a companion paper a process model for shape distortion predictions was developed and implemented into ABAQUS. In the present paper the model is validated for a material and cure schedule typical for RTM and autoclave processes. Comparisons between predicted and experimental shape distortion shows that the model and simulation approach used capture both effects from different cure schedules as well as the mechanical interaction between composite and tooling during in-mould cure. The results show that changing the mechanical boundary conditions significantly affects the shape distortion prediction. Therefore accurate modelling of the composite-tooling interaction is an important part of a shape distortion analysis

Place, publisher, year, edition, pages
2004. Vol. 35, no 6, p. 723-734
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-10572DOI: 10.1016/j.compositesa.2004.02.006ISI: 000221251900011Scopus ID: 2-s2.0-2042535357Local ID: 9659a5f0-25ff-11df-be83-000ea68e967bOAI: oai:DiVA.org:ltu-10572DiVA, id: diva2:983517
Note
Validerad; 2004; 20100302 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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  • apa
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