Identification Damage Model for Thermomechanical Degradation of Ductile Heterogeneous Materials
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Abdelmalek Essaadi University Faculty of Sciences, Department of Physics Tetouan 93030, Tetouan, MOROCCO
Abdelmalek Essaadi University National School of Applied Sciences, Departments TITM Tetouan 93030, Tetouan, MOROCCO
Online publication date: 2017-06-09
Publication date: 2017-05-24
International Journal of Applied Mechanics and Engineering 2017;22(2):475-481
The failure of ductile materials subject to high thermal and mechanical loading rates is notably affected by material inertia. The mechanisms of fatigue-crack propagation are examined with particular emphasis on the similarities and differences between cyclic crack growth in ductile materials, such as metals, and corresponding behavior in brittle materials, such as intermetallic and ceramics. Numerical simulations of crack propagation in a cylindrical specimen demonstrate that the proposed method provides an effective means to simulate ductile fracture in large scale cylindrical structures with engineering accuracy. The influence of damage on the intensity of the destruction of materials is studied as well.
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