Journal
COMPOSITE STRUCTURES
Volume 203, Issue -, Pages 124-131Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2018.07.009
Keywords
Particle-reinforcement; Anisotropy; Elasticity; Interface/interphase; Micro-mechanics
Categories
Funding
- National Natural Science Foundation of China [11772120, 11402076]
- National Science Foundation of Jiangsu Province [BK20170096]
- Fundamental Research Funds for the Central Universities [2016B06314]
- China Scholarship Council
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This contribution sheds light on the coupled effects of anisotropic particle geometries (i.e., shape and size) and reinforced/weak interphase characteristics (i.e., volume fraction, thickness, moduli and Poisson ratio) on the elastic properties of particle-reinforced composites (PACs) at nano- and micro-scales. A powerful micro-mechanics approach that incorporates interphase microstructures into the average-field theory is used to predict the effective elastic modulus, Poisson ratio, shear modulus and bulk modulus of three-phase PRCs including spheroidal nano-/micro-particles, reinforced/weak interphase and matrix. Comparison with measurements indicates this optimized model is a reliable means to evaluate the elastic properties of three-phase PRCs at nano- and micro-scales. Plus, the results show that the elastic response of PRCs strongly depends on the coupled effects of the aspect ratio and geometrical size factor of spheroidal nano-/micro-particles and the volume fraction of reinforced/weak interphase, suggesting that the properties of such materials can be tailored via proper composite engineering and design.
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