Finite element analysis of crack tip plastic zones in 3D

abstrakt

en

Many studies dealing with fatigue crack tip plastic zones assume only two-dimensional plane strain or plane stress condition. This has non-negligible impact on a shape and a size of plastic zones. The purpose of this study was to emphasize the difference between plastic zones obtained from 2D simulations and 3D simulations in CT specimen made of the EA4T steel. The results confirmed the importance of 3D simulations with real crack front curvature.

Many studies dealing with fatigue crack tip plastic zones assume only two-dimensional plane strain or plane stress condition. This has non-negligible impact on a shape and a size of plastic zones. The purpose of this study was to emphasize the difference between plastic zones obtained from 2D simulations and 3D simulations in CT specimen made of the EA4T steel. The results confirmed the importance of 3D simulations with real crack front curvature.

Plastic zone, crack front shape, finite element method, plane strain, plane stress

19.04.2023

Slovak university of technology in Bratislava

Bratislava

978-80-227-5294-7

23rd International Scientific Conference APPLIED MECHANICS 2023 – Book of Abstracts

65–68

140