Title: Constitutive modelling for fused deposition modelling of acrylonitrile butadiene styrene (ABS) under elastic response

Authors: Ying Zhang; Monish Shivappa Mamadapur; Jyhwen Wang

Addresses: Department of Mechanical Engineering, Texas A&M University, 224 Thompson Hall, 3367 TAMU College Station, TX 77843, USA ' Alcon, Orange County, California, USA ' Department of Engineering Technology and Industrial Distribution, Texas A&M University, 108 Thompson Hall, 3367 TAMU College Station, TX 77843, USA

Abstract: Fused deposition modelling is a powerful additive manufacturing technology used for fabricating parts strand by strand and layer upon layer. It is not only capable of producing parts with various geometries, but also can achieve specific mechanical properties to satisfy the performance requirement. This paper presents a methodology to model the elastic mechanical behaviour of this layered and 'composite-like' orthotropic material. Tensile and torsion tests were conducted in order to obtain the values of compliance/stiffness matrix of the material. Based on the material model and test data, analytical method and numerical simulation were employed to predict the elastic behaviour of different parts made from fused deposition modelling. The predictions are in good agreement with the experimental results.

Keywords: fused deposition modelling; FDM; mechanical properties; constitutive modelling; numerical simulation; acrylonitrile butadiene styrene; ABS; elastic response; additive manufacturing; tensile tests; torsion tests; compliance; stiffness.

DOI: 10.1504/IJRAPIDM.2015.073549

International Journal of Rapid Manufacturing, 2015 Vol.5 No.1, pp.76 - 94

Received: 07 Sep 2015
Accepted: 20 Oct 2015
Published online: 11 Dec 2015 *

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