Joule heating behaviors around through crack emanating from circular hole under electric load

Self-Healing Polymer Nanocomposite Materials by Joule Effect

“…The main characteristic of internal heating is related to the localized increase in thermal energy in microcracks and cracks, raising the temperature of the damaged area in a localized way due to the change of direction of the electric current at the tips of the cracks [ 48 ] ( Figure 3 ). When the direction of the electric current is perpendicular to the crack, the temperature at the tip of the crack will be at its maximum; then, the temperature at that region depends on the electric current supplied, the geometry of the crack, and the load mechanics of the material [ 49 ] ( Figure 3 ). This phenomenon can be used to perform self-healing functions, since the ideal thermal conditions are found at the tip of the cracks, optimizing the use of energy.…”

“…The localized increase in temperature at the tip of the crack is used to generate a localized fusion of the matrix, then the tip cools down and contracts, thus stopping the crack growing [ 50 , 51 ]. This effect can also be used as a fault detector, because if there is a localized increase in temperature, it can be detected by infrared cameras [ 48 , 49 , 52 , 53 ].…”

Numerical Analysis of Joule Heating Behavior and Residual Compressive Stress around Crack Tip under High Electric Load

“…Due to the symmetry, only half thickness is analyzed. In addition, the quarter-point elements are used to simulate the −1/2 singularity at the crack tip [9][10][11][12]19]. …”

“…They used mathematical methods to analyze the crack-tip field under the electric current. Following their pioneer research, many typical studies were done for solving this problem in the last decades [3][4][5][6][7][8][9][10][11][12].…”

Microstructure and Pitting Corrosion of Austenite Stainless Steel after Crack Arrest

“…For instance, a theoretical model for electromagnetic heating crack arrest process of space cracks in metal die has been established, indicated that the process could reduce stress concentration, and formed a compressive stress region at the crack tip, and inhibited the crack propagation [4,5]. Moreover, the thermoelectric coupling field of metal plates with circular holes and through cracks have been studied, implied that temperature at crack tip depended on the electrical energy input, geometry and mechanical load [6,7].…”