Micromechanical modeling of reinforcement fracture in particle-reinforced metal-matrix composites

Quantification of microdamage phenomena during tensile straining of high volume fraction particle reinforced aluminium

“…While some of the work has focused on the introduction of damage in finite element models [26][27][28][29][30][31], others have treated the problem using principles of continuum damage mechanics [32][33][34]. In this second framework, damage is incorporated to global constitutive equations by introducing a damage parameter D that accounts for the gradual decrease in flow stress with accumulating damage in the material.…”

Fabrication and Characterization of 5 vol.% (Al2O3)p+ 8 vol.% (Al2O3)f/A336 Hybrid Micron and Nano-Composites

“…Metal matrix composites (MMCs) have widely been recognized to possess superior mechanical properties, such as enhanced wear resistance, high elastic modulus and yield strength, low coefficients of thermal expansion, as compared to the unreinforced monolithic metals [1][2][3][4][5][6][7][8].…”

Effect of particle cracking on elastoplastic behaviour of metal matrix composites

“…For example, a number of ÿnite element micromechanical studies have been conducted to address the e ects of particle cracking on the elastic and elastoplastic behaviour of PRMMCs [5][6][7][8][9][10][11]. Within the unit-cell micromechanical framework of two-dimensional axisymmetric ÿnite element analyses, Bao [5] examined the e ect of both intact and cracked reinforcing particles on the ow response of PRMMCs with an elastic-perfectly plastic matrix, while Finot et al [6] and Brockenbrough and Zok [7] further considered the matrix as a plastically hardening solid. Llorca et al [8] and Wilkinson et al [9] introduced the Weibull statistics to simulate the damage evolution of particle cracking with their ÿnite element models.…”