The damage and fracture of coal is accompanied by a complex energy conversion process, these different stages evolution are closely related to failure. In this paper, an model describing the behavior failure was proposed using dissipation under cyclic loading/unloading. growth pattern consumption characteristics were analyzed An established. variables defined, theoretical parameters included re...

This paper proposes a framework for the constitutive model based on the semi-micromechanical aspects of plasticity, including damage progress for simulating behavior of concrete under multiaxial loading. This model is aimed to be used in plastic and fracture analysis of both regular and reinforced concrete structures, for the framework of sample plane crack approach. This model uses multilamina...

The safety of lifelines, as the most important urban facilities, under different conditions highly depends on the safe design and performance of these buried structures. This cannot be achieved unless their actual behaviors are well understood and considered at the designing stage. A new physical model was developed in Amirkabir University of Technology to study the behavior of buried pipes und...

To study the mechanical and energy evolution characteristics of sandstone under true triaxial cyclic loading, a test with different intermediate principal stress loading was conducted using rock disturbance unloading system. The influence axial load on deformation, evolution, macroscopic failure in systematically analyzed, damage law revealed. Results showed that mode compression changed from t...

The fatigue behavior of a Ceramic Matrix Composite (CMC) at intermediate temperature under air is investigated. Because of the low density and the high tensile strength of CMC, they offer a good technical solution to design aeronautical structural components. The aim of the present study is to compare the behavior of this composite under static and cyclic loading. Comparison between incremental...

Present paper investigated the strain and damage sensing property on concrete cubes embedded with carbon fibers. Concrete cubes of dimension 150 mm have been casted with different concentration of carbon fibers to study the strain and damage sensing property under cyclic loading that can be further used for health monitoring as non-destructive testing (NDT) approach. All the specimens were test...