Constraint Effect and Crack-Tip Plastic Zone of the Pipe With Internal Inclined Surface Cracks Under External PressureSource: Journal of Pressure Vessel Technology:;2025:;volume( 147 ):;issue: 002::page 21306-1DOI: 10.1115/1.4067676Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To improve the accuracy of reliability assessment, it is essential to conduct a comprehensive investigation into the constraint effect and the characteristics of the crack-tip plastic zone in a pipe with internal inclined surface cracks. We propose a novel analytical solution for the crack-tip plastic zone in a mixed mode I–II–III crack, based on the von Mises yield criterion, which includes stress intensity factors (SIFs) KII and KIII. We have examined the impact of several factors, including aspect ratio (a/c), crack depth (a/t), crack inclination angle (β), and friction coefficient (μ), on the in-plane constraint (T11), out-of-plane constraint (T33 and Tz), as well as the unified constraint (h) of a pipe containing internal inclined surface cracks under external pressure. The research reveals that geometrical configurations (aspect ratio and crack depth) have varying effects on the four constraint parameters, depending on their location along the crack front. The influence is relatively minor at the crack surface and the deepest point but becomes most pronounced at the middle point of the crack front. Additionally, the friction factor exclusively impacts the unified constraint parameter. Furthermore, we observed that the crack-tip plastic zone displays a mixed mode II–III crack at the free surface and a pure III mode at the deepest point.
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contributor author | Pei, Qi | |
contributor author | Yao, Xi-Ming | |
contributor author | Jin, Li-Zhu | |
contributor author | Zhou, Chang-Yu | |
date accessioned | 2025-04-21T10:04:04Z | |
date available | 2025-04-21T10:04:04Z | |
date copyright | 2/7/2025 12:00:00 AM | |
date issued | 2025 | |
identifier issn | 0094-9930 | |
identifier other | pvt_147_02_021306.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4305419 | |
description abstract | To improve the accuracy of reliability assessment, it is essential to conduct a comprehensive investigation into the constraint effect and the characteristics of the crack-tip plastic zone in a pipe with internal inclined surface cracks. We propose a novel analytical solution for the crack-tip plastic zone in a mixed mode I–II–III crack, based on the von Mises yield criterion, which includes stress intensity factors (SIFs) KII and KIII. We have examined the impact of several factors, including aspect ratio (a/c), crack depth (a/t), crack inclination angle (β), and friction coefficient (μ), on the in-plane constraint (T11), out-of-plane constraint (T33 and Tz), as well as the unified constraint (h) of a pipe containing internal inclined surface cracks under external pressure. The research reveals that geometrical configurations (aspect ratio and crack depth) have varying effects on the four constraint parameters, depending on their location along the crack front. The influence is relatively minor at the crack surface and the deepest point but becomes most pronounced at the middle point of the crack front. Additionally, the friction factor exclusively impacts the unified constraint parameter. Furthermore, we observed that the crack-tip plastic zone displays a mixed mode II–III crack at the free surface and a pure III mode at the deepest point. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Constraint Effect and Crack-Tip Plastic Zone of the Pipe With Internal Inclined Surface Cracks Under External Pressure | |
type | Journal Paper | |
journal volume | 147 | |
journal issue | 2 | |
journal title | Journal of Pressure Vessel Technology | |
identifier doi | 10.1115/1.4067676 | |
journal fristpage | 21306-1 | |
journal lastpage | 21306-14 | |
page | 14 | |
tree | Journal of Pressure Vessel Technology:;2025:;volume( 147 ):;issue: 002 | |
contenttype | Fulltext |