Variation simulation for composite parts and assemblies including variation in fiber orientation and thickness
Paper i 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.

Geometry assurance

FEM

DOE

Composites

Contribution analysis

Författare

Cornelia Jareteg

Göteborgs universitet

Chalmers, Matematiska vetenskaper, Matematik

Kristina Wärmefjord

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Rikard Söderberg

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Lars Lindkvist

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Johan Carlson

Stiftelsen Fraunhofer-Chalmers Centrum för Industrimatematik

Christoffer Cromvik

Stiftelsen Fraunhofer-Chalmers Centrum för Industrimatematik

Fredrik Edelvik

Stiftelsen Fraunhofer-Chalmers Centrum för Industrimatematik

Procedia CIRP

22128271 (ISSN)

Vol. 23 C 235-240

Ämneskategorier

Produktionsteknik, arbetsvetenskap och ergonomi

Matematik

Beräkningsmatematik

Styrkeområden

Produktion

DOI

10.1016/j.procir.2014.10.069