Influences of reinforcing particle and interface bonding strength on material properties of Mg/nano-particle composites |
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| Authors: | Yong Cheng Lichun Bian Yanyu Wang Farid Taheri |
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| Institution: | 1. Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei Province, Yanshan University, Qinhuangdao 066004, PR China;2. College of Science, Yanshan University, Qinhuangdao 066004, PR China;3. Department of Civil Engineering, Dalhousie University, Halifax NS B3J 1Z1, Canada |
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| Abstract: | In the present study, an effective model is proposed to predict the effective elastic behavior of the three-phase composite containing spherical inclusions, each of which is surrounded by an interphase layer. The constitutive equations are derived for the stress and strain of each phase of the composite subjected to a far-field tension. Based on these constitutive laws, the effective bulk, shear and Young’s modulus are obtained. A statistical debonding criterion is adopted to characterize the varying probability of the evolution of interphase debonding. Influences of debonding damage, particle volume fraction, interphase properties and bonding strength on overall mechanical behavior of composites are also discussed. Numerical analyses are carried out on particle-reinforced composites and the predictions have a good agreement with the experimental results. |
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| Keywords: | Interphase Particle-reinforced composite Micromechanics Effective elastic modulus Elasto-plastic behavior |
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