In this paper the Fourier series is used to evaluate mode I Stress Intensity Factors (SIF) in three-dimensional planar flaws based on a distortion transformation of a reference disc. Under the hypothesis of an isolated crack, the SIF at each point of the crack border is calculated to assess the crack shape after propagation according to the crack growth rate equation of Paris and Erdogan. The contour is moved along the outward normal to the crack shape. Many examples are proposed with the aim of predicting the final shape of different types of embedded planar flaws.

Fatigue crack propagation of planar three-dimensional cracks

Livieri P.
Co-primo
;
Segala F.
Co-primo
2022

Abstract

In this paper the Fourier series is used to evaluate mode I Stress Intensity Factors (SIF) in three-dimensional planar flaws based on a distortion transformation of a reference disc. Under the hypothesis of an isolated crack, the SIF at each point of the crack border is calculated to assess the crack shape after propagation according to the crack growth rate equation of Paris and Erdogan. The contour is moved along the outward normal to the crack shape. Many examples are proposed with the aim of predicting the final shape of different types of embedded planar flaws.
2022
Livieri, P.; Segala, F.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2501648
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