Micromechanical modeling of interface damage of metal matrix composites subjected to transverse loading

Micromechanics of fibrous composites subjected to combined shear and thermal loading using a truly meshless method

“…Based on (19), the equilibrium equation in the x 1 and x 2 direction for each sub-domain I s can be written as;…”

“…Axial shear loading [15] and normal and transverse shear loading [16][17][18] of composite materials were studied using 3D finite element model. Aghdam et al [19] investigated the combined thermal and transverse shear loading of square array UD composites using a 3D finite element model and triangular RVE. Adams and Doner [20] used the finite difference method to solve the governing equations of the axial shear loading of UD composites at micromechanical level.…”

“…Various macro and micro-mechanical approaches have been employed to model the overall and local behavior of the composite materials subjected to different loading conditions. In the micromechanical approach, analytical [1][2][3][4][5][6][7] and numerical [8][9][10][11][12][13][14][15][16][17][18][19][20][21] models have been proposed to predict various characteristics of composites such as elastic and thermo-elastic behavior. Analytical models normally involve more simplifying assumptions and therefore, most of these methods are not able to predict accurately the non-uniform distribution of the local micro-stress or micro-strain components within the RVE.…”

Enhanced nonlinear inspection of diffusion bonded interfaces using reflected non-collinear ultrasonic wave mixing

“…Hidden subtle imperfections in diffusion bonds can greatly reduce the service life of fracture-critical components. Numerous studies have been investigating the physical characteristics of imperfect interfaces [1][2][3][4][5]. In partially well bonded components imperfect interfaces behave much like tight kissing bonds [6].…”

Micromechanical Analysis of Effect of Interphase on Mechanical Properties of Kevlar Fiber Reinforced Epoxy Composites

“…Experimental and numerical studies have showed that the interphase properties such as modulus, thickness, Poisson's ratio and tensile strength do have a significant influence on both the transverse effective properties. (Aghdam and Falahatgar, 2004) developed A three-dimensional finite element micromechanical model to study effects of various parameters such as thermal residual stress, fiber coating and interphase bonding on the transverse behavior of a unidirectional SiC/Ti-6Al-4V metal matrix composite. The effect of an inhomogeneous interphase on elastic constants of unidirectional fiber reinforced composites investigated by (Jasiuk and Kouider, 1993).…”