Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method

In this study, the ratcheting behavior of a 316 L Austenitic Stainless Steel pipe tee under cyclic bending and constant internal pressure was investigated experimentally and numerically using the digital image correlation (DIC) method. First, the material of the tee was verified with chemical analys...

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Main Authors: Ali Shahrjerdi, Faezeh Nazari
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Forces in Mechanics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666359725000216
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author Ali Shahrjerdi
Faezeh Nazari
author_facet Ali Shahrjerdi
Faezeh Nazari
author_sort Ali Shahrjerdi
collection DOAJ
description In this study, the ratcheting behavior of a 316 L Austenitic Stainless Steel pipe tee under cyclic bending and constant internal pressure was investigated experimentally and numerically using the digital image correlation (DIC) method. First, the material of the tee was verified with chemical analyses. During the experimental tests, bending load was applied using an INSTRON 8503 machine, a compressed air capsule was used to apply the constant internal pressure and Strain was measured using the digital image correlation (DIC) method. In the experimental tests, tee samples were tested at controlled force and room temperature (25 °C). It was observed that increasing the average force, amplitude force, and internal pressure resulted in an increased accumulation of ratcheting strain. Finally, the ratcheting behavior of the tee samples was simulated using ANSYS software and the finite element method based on a nonlinear kinematic/isotropic hardening model. The FE simulation results were compared with experimental data, and it was found that the numerical data are in good agreement with experimental data.
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series Forces in Mechanics
spelling doaj-art-4f3e0ae9fd164fcebde770bd6a4dcd9d2025-08-20T03:40:46ZengElsevierForces in Mechanics2666-35972025-08-012010032510.1016/j.finmec.2025.100325Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC methodAli Shahrjerdi0Faezeh Nazari1Corresponding author.; Department of Mechanical Engineering, Faculty of Engineering, Malayer University, Malayer, IranDepartment of Mechanical Engineering, Faculty of Engineering, Malayer University, Malayer, IranIn this study, the ratcheting behavior of a 316 L Austenitic Stainless Steel pipe tee under cyclic bending and constant internal pressure was investigated experimentally and numerically using the digital image correlation (DIC) method. First, the material of the tee was verified with chemical analyses. During the experimental tests, bending load was applied using an INSTRON 8503 machine, a compressed air capsule was used to apply the constant internal pressure and Strain was measured using the digital image correlation (DIC) method. In the experimental tests, tee samples were tested at controlled force and room temperature (25 °C). It was observed that increasing the average force, amplitude force, and internal pressure resulted in an increased accumulation of ratcheting strain. Finally, the ratcheting behavior of the tee samples was simulated using ANSYS software and the finite element method based on a nonlinear kinematic/isotropic hardening model. The FE simulation results were compared with experimental data, and it was found that the numerical data are in good agreement with experimental data.http://www.sciencedirect.com/science/article/pii/S2666359725000216Ratcheting behaviorFatigueDigital image correlation (DIC)316l austenitic stainless steelTeeCyclic loading
spellingShingle Ali Shahrjerdi
Faezeh Nazari
Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method
Forces in Mechanics
Ratcheting behavior
Fatigue
Digital image correlation (DIC)
316l austenitic stainless steel
Tee
Cyclic loading
title Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method
title_full Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method
title_fullStr Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method
title_full_unstemmed Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method
title_short Ratcheting behavior of pressurized 316L austenitic stainless steel pipe tee under cyclic bending using DIC method
title_sort ratcheting behavior of pressurized 316l austenitic stainless steel pipe tee under cyclic bending using dic method
topic Ratcheting behavior
Fatigue
Digital image correlation (DIC)
316l austenitic stainless steel
Tee
Cyclic loading
url http://www.sciencedirect.com/science/article/pii/S2666359725000216
work_keys_str_mv AT alishahrjerdi ratchetingbehaviorofpressurized316lausteniticstainlesssteelpipeteeundercyclicbendingusingdicmethod
AT faezehnazari ratchetingbehaviorofpressurized316lausteniticstainlesssteelpipeteeundercyclicbendingusingdicmethod