Influence of Creep on Longitudinal Fracture of Inhomogeneous Rod Loaded in Torsion and Bending

Abstract:

The present paper analyzes the influence of creep on longitudinal fracture in continuously inhomogeneous rod of circular cross-section loaded in torsion and bending. The rod exhibits continuous material inhomogeneity in both radial and longitudinal directions. The creep is described by using non-linear time-dependent relations between the principle stresses and strains. A time-dependent solution to the strain energy release rate is derived by analyzing the complementary strain energy. The time-dependent strain energy release rate is found also by considering the energy balance for verification. The solutions are applied to perform a parametric study of the strain energy release rate under creep.

• Periodical: Materials Science Forum (Volume 1046)
• Pages: 9-14
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1046.9
• Online since: September 2021
• Authors: Victor Iliev Rizov*
• Keywords: Bending, Creep, Fracture, Inhomogeneous Rod, Longitudinal Crack, Torsion

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