Modelling and simulation of randomly oriented carbon fibre-reinforced composites under thermal load

International Conference on Materials, Processing and Product Engineering 2015

Treffler, R.^1 ; Fröschl, J.^1 ; Drechsler, K.^2 ; Ladstätter, E.^2

BMW Group, Knorrstrasse 147, Munich

80788, Germany^1

Institute for Carbon Composites, Department of Mechanical Engineering, Technische Universität München, Munich, Germany^2

关键词: Carbon fibre reinforced composites;    Complex materials;    Metallic material;    Modelling and simulations;    Random orientations;    Specimen thickness;    Static and cyclic test;    Stiffness degradation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/119/1/012002/pdf
DOI  :  10.1088/1757-899X/119/1/012002

来源: IOP

【 摘 要 】

Carbon fibre-reinforced sheet moulding compounds (CF-SMC) already exhibit a complex material behaviour under uniaxial loads due to the random orientation of the fibres in the matrix resin. Mature material models for metallic materials are generally not transferable. This paper proposes an approach for modelling the fatigue behaviour of CF-SMC based on extensive static and cyclic tests using low cost secondary carbon fibres (SCF). The main focus is on describing the stiffness degradation considering the dynamic modulus of the material. Influence factors such as temperature, orientation, rate dependence and specimen thickness were additionally considered.