Mixed mode I-III fracture resistance of stainless steel 316L weakened by V-notches with end holes

Torabi, A.R.; Talebi, Hossein; Ayatollahi, M.R.; Petrů, Michal

doi:10.1016/j.tafmec.2022.103574

Cited by 11 publications

(3 citation statements)

References 32 publications

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“…In recent years, numerous studies have investigated the failure behavior of engineering components, considering the presence of notches and cracks [1][2][3][4][5][6][7]. While notches are sometimes intentionally designed in engineering parts [2,4,6,[8][9][10][11][12][13][14][15][16][17], cracks are invariably considered undesirable. Cracks typically form during the manufacturing process or the operational life of a component, diminishing the load-bearing capacity of structures and consequently shortening their lifespan.…”

Section: Introductionmentioning

confidence: 99%

“…As brittle fracture poses a greater risk than ductile fracture, substantial research efforts have focused on understanding brittle fracture in engineering materials and structures in recent years. Among engineering materials, thin-walled ductile sheets made of steel, aluminum, and other metallic materials are consistently utilized in the construction of various structures, notably in vehicles within the automotive and aerospace industries [13,16,19]. Given the extensive application of thin-walled metallic sheets, it is imperative to research and study the ductile fracture behavior of thin-walled metallic materials utilized in different sectors.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Mode Mixity and Loading Rate on Fracture Behavior of Cracked Thin-Walled 304L Stainless Steel Sheets with Large Non-Linear Plastic Deformation

Bidadi,

Saeidi Googarchin,

Akhavan-Safar

et al. 2023

Materials

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This study investigates the mixed-mode I/II fracture behavior of O-notched diagonally loaded square plate (DLSP) samples containing an edge crack within the O-notch. This investigation aims to explore the combined effects of loading rate and mode mixity on the fracture properties of steel 304L, utilizing DLSP samples. The DLSP samples, made from strain-hardening steel 304L, were tested at three different loading rates: 1, 50, and 400 mm/min, covering five mode mixities from pure mode I to pure mode II. Additionally, tensile tests were performed on dumbbell-shaped specimens at the same loading rates to examine their influence on the material’s mechanical properties. The findings revealed that stress and strain diagrams derived from the dumbbell-shaped samples were largely independent of the tested loading rates (i.e., 1–400 mm/min). Furthermore, experimental results from DLSP samples showed no significant impact of the loading rates on the maximum load values, but did indicate an increase in the ultimate displacement. In contrast to the loading rate, mode mixity exhibited a notable effect on the fracture behavior of DLSP samples. Ultimately, it was observed that the loading rate had an insignificant effect on the fracture path or trajectory of the tested DLSP samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Mode Mixity and Loading Rate on Fracture Behavior of Cracked Thin-Walled 304L Stainless Steel Sheets with Large Non-Linear Plastic Deformation

Bidadi,

Saeidi Googarchin,

Akhavan-Safar

et al. 2023

Materials

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show abstract

“…In the field of engineering, there are inevitably different types of defects in natural environments and engineering materials, of which circular defects are the most common. The presence of defects leads to the phenomenon of stress concentration, which may lead to the failure of the structure [1,2]. Therefore, the stress concentration analysis of a certain structure has always been one of the important research topics in the field of nondestructive testing and fatigue life prediction.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Prediction of the Dynamic Antiplane Characteristics of an Elastic Wedge-Shaped Quarter-Space Containing a Circular Hole

Liu

Yang

Liu

et al. 2023

Advances in Mathematical Physics

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Based on the wave function expansion method, the dynamic antiplane characteristics of a wedge-shaped quarter-space containing a circular hole are studied in a complex coordinate system. The wedge-shaped medium is decomposed into two subregions along the virtual boundary using the virtual region decomposition method. The scattering wave field in subregion I is constructed by the mirror method, and the standing wave field in region II is constructed by the fractional Bessel function. According to the continuity conditions at the virtual boundary and the stress-free boundary of the circular hole, the unknown coefficients of the wave fields are obtained by the Fourier integral transform, and the analytical solution of the dynamic stress concentration factor (DSCF) of the circular hole is then obtained. Through parametric analysis, the effects of incident wave frequency, geometry of the wedge, and corner slope on the DSCF of the circular hole are discussed. The results show that when the SH-wave is horizontally incidence at high frequencies, the DSCF of the circular hole can be significantly changed by introducing the corner slope. Moreover, when the corner slope is high, the maximum DSCF can be amplified about 1.2 times. Finally, the back propagation (BP) neural network prediction model of DSCF is established, and the coefficient of regression is found to reach more than 0.99.

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Developing rapid expressions for calculating average strain energy density and J-integral in VO-notched components under tension

Amirinia,

Alirezaeipour,

Safarabadi

et al. 2023

J Braz. Soc. Mech. Sci. Eng.

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Mixed mode I-III fracture resistance of stainless steel 316L weakened by V-notches with end holes

Cited by 11 publications

References 32 publications

Effects of Mode Mixity and Loading Rate on Fracture Behavior of Cracked Thin-Walled 304L Stainless Steel Sheets with Large Non-Linear Plastic Deformation

Effects of Mode Mixity and Loading Rate on Fracture Behavior of Cracked Thin-Walled 304L Stainless Steel Sheets with Large Non-Linear Plastic Deformation

Analysis and Prediction of the Dynamic Antiplane Characteristics of an Elastic Wedge-Shaped Quarter-Space Containing a Circular Hole

Developing rapid expressions for calculating average strain energy density and J-integral in VO-notched components under tension

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