Hot spot Analysis in complex composite material structures
Artikel i vetenskaplig tidskrift, 2019

In this paper, failure initiation in composite structures due to high out-of-plane load components is predicted.
The predictions are based on finite element models built with shell elements, intended for global models. The full
3D stress state is estimated through stress recovery by the extended 2D FEM approach. Failure initiation is
predicted with state of the art failure criteria for transversely isotropic composite materials. The approach is
validated for a range of geometries with different modelling resolutions. Finally, the methodology is verified on a
complex composite structure. With the proposed approach, using shell elements, efficient modelling strategies of
large structures can be pursued using hot spot analyses to identify critical locations.

Carbon fibre composites Finite element Textile Global-local analysis Failure initiation

Författare

Henrik Molker

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Renaud Gutkin

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Silvestre Pinho

Leif Asp

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Composite Structures

0263-8223 (ISSN)

Vol. 207 776-786

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Farkostteknik

Kompositmaterial och -teknik

DOI

10.1016/j.compstruct.2018.09.088

Mer information

Skapat

2018-10-03