Predictive Modeling of Toughening Micromechanisms in Glass Particle—Resin Composites with Varied Interphases
Source abstract
Abstract
The potential failure and toughening mechanisms in isotropic composites used in dental restorative materials and consisting of particulate glass in a BISGMA/TEGDMA (60: 40) epoxy-type resin matrix are analyzed using an axisymmetric spherical cell finite-element model. The stress distributions at the filler/matrix interface or interphase are investigated in detail for a representative composite cell inside the process zone surrounding a crack tip in order to elucidate potential failure processes and toughening mechanisms for the material. A range of filler content is considered, including volume fractions above 0.5. Additional variables include perfect and imperfect adhesion at interfaces, and modulus and thickness of interphases. This study helps to specify potential directions for enhancing the toughness of hard-particle-filled polymers.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Composite Material Mechanics · Mechanical Behavior of Composites · Epoxy Resin Curing Processes
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Affiliations
College of Engineering Temple University 1947 N. 12th Street Philadelphia, PA 19122, USA
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