Compressive strength assessment of a CFRP aero-engine component – An approach based on measured fibre misalignment angles
Journal article, 2020

In this paper we apply a recently developed methodology to assess the compressive strength of an aero-engine componentbasedon measured fibremisalignment angles.The componentisafanoutletguidevanemadefroma carbon fibre reinforced polymer, which was manufactured and tested by GKN Aerospace in Sweden. The main novelty with this work is that kink-band formation is predicted from measurements of fibre misalignment angles with high spatial resolution in a real component. In addition, we validate the recently published “defect severity model” on unidirectional specimens of the same material system as the aerospace component. We confirm high accuracy of the model for prediction of compressive strength on unidirectional composite laminates. Further work is however needed to extend the methodology for cases where progressive damage leads to final failure.

Compression failure

NCF composites

Aeropace

Author

Dennis Wilhelmsson

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Dennis Rikemansson

GKN Aerospace Sweden

Thomas Bru

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Leif Asp

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Composite Structures

0263-8223 (ISSN)

Vol. 233 111632

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Transport

Materials Science

Subject Categories

Aerospace Engineering

Applied Mechanics

Composite Science and Engineering

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.1016/j.compstruct.2019.111632

More information

Latest update

12/16/2019