Modelling of mechanical properties of randomly oriented strands thermoplastic composites

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Proceedings titleEuropean Conference on Composite Materials
Conference16th European Conference on Composite Materials, ECCM 2014, June 22-26, 2014, Seville, Spain
SubjectMechanical properties; Randomly oriented strands; Thermoplastics
AbstractRandomly oriented strands (ROS) thermoplastic composites have attractive properties, such as great formability and high modulus, but their properties are highly variable due to heterogeneous macrostructure. This paper proposes a stochastic finite element technique that predicts strength and modulus of ROS composites. It is based on the concept of random strands generation to model variability, and it utilizes Hashin's failure criteria and fracture energies to estimate strength. Overall, the model matches experimental results and shows that failure of ROS composites is matrix-dominated and follows the "weakest-link" principle.
Publication date
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number21275934
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Record identifier868f848d-1f08-406a-8ba4-a03d28ae04a6
Record created2015-08-10
Record modified2016-05-09
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