Failure modes in particulate filled plastic matrix composites
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Date
2021
Authors
Onitiri, M.A.
Ubi, P.A.
Journal Title
Journal ISSN
Volume Title
Publisher
APWEN Journal of Engineering, Science and Technology
Abstract
Among the challenges that particle-filled plastics composites (PFPCs) present is the complexity of
their mechanical behavior, particularly during plastic deformation. This challenge cannot be
overlooked in need by most modern designs for materials with a combination of properties such
as stiffness and strength than conventional plastics cannot meet. Thus, in this paper, detailed
discussions on the influence of three failure modes, namely: matrix failure, failure of the particulate
fillers, and interfacial decohesion on the mechanical stability of PFPCs, were done. The
relationship between the matrix crack and the particulate filler was also discussed. At the same
time, the mechanical behaviour of PFPCs when subjected to tensile, compressive, and impact
loading was also reviewed. It is shown that the type of failure experienced by the particulate
composite is influenced significantly by the mismatch in ductility and elastic modulus between the
particulate fillers and the matrix. Factors such as temperature variation, increase in strain rate,
presence of a sharp notch, formation of voids in the matrix, and poor adhesion between matrix and
particle fillers with increased particle size also affect the failure mode experienced by the
particulate composite.
Description
Scholarly article
Keywords
Composites , Failure , Fillers , particulate , plastics , Research Subject Categories::TECHNOLOGY::Engineering mechanics
Citation
Onitiri, M. A. and Ubi, P. A. (2021) “Failure modes in particulate filled plastic matrix composites”, APWEN Journal of Engineering, Science and Technology. Vol. 5, Issue 1, pp. 78-96