The effect of tension compression asymmetry on modelling the bending response of sheet moulding compound composites. (1st December 2018)

• Record Type: Journal Article
• Authors: Tham, Jonathan; Sabiston, Trevor; Trauth, Anna; Lévesque, Julie; Weidenmann, Kay André; Inal, Kaan
• Is Part Of: Composites. Number 154(2018)
• Page Start: 157
• Page End: 165
• Publication Date: 2018-12-01
• Subjects: Moulding compounds -- Anisotropy -- Computational modeling -- Mechanical testing; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2018.07.058
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Phenomenological models are required to predict the behaviour of a glass fibre reinforced Sheet Moulding Compound (SMC) composite material for use in the automotive industry. Material testing is conducted in tension, compression, in-plane shear, and three-point bending. The SMC composite exhibits tension-compression asymmetry and in-plane anisotropy. A model, which incorporates an anisotropic and asymmetric yield function, is developed. The model is calibrated to the experimental tension, compression and in-plane shear tests and are validated using the three-point flexure test. The model captures the flexure response within 8.1% of the experimental observations. The importance of including tension compression asymmetry within the model is demonstrated.