Compressive strength assessment of fibre composites based on a defect severity model
Journal article, 2019

This paper presents a defect severity concept for characterising fibre misalignments commonly found in practical composites. Drawing an analogy with brittle fracture from sharp defects, we show that compressive failure is governed by regions with clusters of misaligned fibres and that failure occurs from a critical region most favourable to initiating a kink-band. Based on a large database of measured fibre misalignments, a defect severity model is proposed. The initiation and progression of kink-bands are also analysed using a finite element model.

Author

Dennis Wilhelmsson

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Ramesh Tareja

Texas A&M University

Renaud Gutkin

Volvo Cars

Leif Asp

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Composites Science and Technology

0266-3538 (ISSN)

Vol. 181 107685

Dimensioneringsmetodik för tryckbelastad NCF komposit (KOMPRESS II)

VINNOVA, 2017-11-10 -- 2019-12-31.

Kompressionsbrott i komplexa NCF kompositstrukturer - KOMPRESS

VINNOVA, 2013-09-01 -- 2017-06-30.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Transport

Materials Science

Subject Categories

Applied Mechanics

Vehicle Engineering

Composite Science and Engineering

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.1016/j.compscitech.2019.107685

More information

Latest update

7/16/2019