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All Journal Logic : Jurnal Rancang Bangun dan Teknologi
Seyedmorteza Latifi
University of Kashan, Iran
Computer Science & IT Education

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Effect of Material Hardness on Energy Dissipation From a Moving Crack in First Mode Seyedmorteza Latifi
Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 1 (2020): March
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1449.005 KB) | DOI: 10.31940/logic.v20i1.1777

Abstract

Fatigue crack growth is the reason of failure of mechanical parts under cyclic loading. When a crack forms in material a plastic zone surrounds the tip of the crack. In this paper, a model based on HRR singularity is utilized to find the strain energy dissipation from a crack tip. Material hardness effect on the dissipated strain energy is investigated. It is found that the strain energy dissipation decreases with hardness. The results also show the direct logarithmic relation between the stress intensity factor and strain energy dissipation of fatigue crack propagation.
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