Variation simulation for composite parts and assemblies including variation in fiber orientation and thickness
Paper in proceeding, 2014
All manufacturing processes are afflicted by geometrical variation, which can lead to defect products. A simulation tool for geometry assurance analysis is therefore important in the design process. The use of composites has recently increased drastically, but there is still a lack of understanding about the effects of variation in such parts. A method for predicting variation in subassemblies, including variation in fiber orientation and ply thickness for composites is presented. The approach is demonstrated on an industrial case and finite element analysis is used to calculate the deformation. In particular, contribution
from variation in material properties to the variation in critical points is analyzed. The results indicate that material uncertainties have a small impact on the geometric variation for the test case.
DOE
Composites
FEM
Contribution analysis
Geometry assurance
Author
Cornelia Jareteg
Chalmers, Mathematical Sciences, Mathematics
University of Gothenburg
Kristina Wärmefjord
Chalmers, Product and Production Development, Product Development
Rikard Söderberg
Chalmers, Product and Production Development, Product Development
Lars Lindkvist
Chalmers, Product and Production Development, Product Development
Johan Carlson
Fraunhofer-Chalmers centrum for industrimatematik - FCC
Christoffer Cromvik
Fraunhofer-Chalmers centrum for industrimatematik - FCC
Fredrik Edelvik
Fraunhofer-Chalmers centrum for industrimatematik - FCC
Proceedings of SPIE - The International Society for Optical Engineering
0277786X (ISSN) 1996756X (eISSN)
Vol. 23 C 235-240Subject Categories (SSIF 2011)
Production Engineering, Human Work Science and Ergonomics
Mathematics
Computational Mathematics
Areas of Advance
Production
DOI
10.1016/j.procir.2014.10.069