Influences of reinforcing particle and interface bonding strength on material properties of Mg/nano-particle composites

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:51

Article

Cheng, Yong¹  Bian, Lichun¹  Wang, Yanyu²  Taheri, Farid³ 

[1] Yanshan Univ, Key Lab Mech Reliabil Heavy Equipments & Large St, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, Coll Sci, Qinhuangdao 066004, Peoples R China

[3] Dalhousie Univ, Dept Civil Engn, Halifax, NS B3J 1Z1, Canada

关键词: Interphase;    Particle-reinforced composite;    Micromechanics;    Effective elastic modulus;    Elasto-plastic behavior;   

DOI  :  10.1016/j.ijsolstr.2014.05.007

来源: Elsevier

【 摘 要 】

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. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

Free