Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel
The objective of this study is to examine the behavior of fatigue crack growth (FCG) in the mixed mode (I/II) of the AISI 316 austenitic stainless steel alloy, considering mode mixity angles of 30°, 45°, and 60°. This particular alloy is widely used in the marine industry and various structural comp...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/16/9446 |
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| author | Abdulnaser M. Alshoaibi Abdullateef H. Bashiri |
| author_facet | Abdulnaser M. Alshoaibi Abdullateef H. Bashiri |
| author_sort | Abdulnaser M. Alshoaibi |
| collection | DOAJ |
| description | The objective of this study is to examine the behavior of fatigue crack growth (FCG) in the mixed mode (I/II) of the AISI 316 austenitic stainless steel alloy, considering mode mixity angles of 30°, 45°, and 60°. This particular alloy is widely used in the marine industry and various structural components because of its exceptional properties, such as high corrosion resistance, good formability, weldability, and high-temperature strength. By investigating the crack growth behavior, the study seeks to provide insights into the material’s durability and potential for long-term use in demanding applications. To analyze fatigue crack growth behavior using linear elastic fracture mechanics (LEFM), this study utilizes compact tension shear (CTS) specimens with varying loading angles. The CTS specimens provide an accurate simulation of real-world loading conditions by allowing for the application of various loading configurations, resulting in mixed-mode loading. The ANSYS Mechanical APDL 19.2 software, which includes advanced features such as separating, morphing, and adaptive remeshing technologies (SMART), was utilized in this study to precisely model the path of crack propagation, evaluate the associated fatigue life, and determine stress intensity factors. Through comparison with experimental data, it was confirmed that the loading angle had a significant impact on both the fatigue crack growth paths and the fatigue life cycles. The stress-intensity factor predictions from numerical models were compared to analytical data. Interestingly, it was observed that the maximum shear stress and von Mises stresses occurred when the loading angle was 45 degrees, which is considered a pure shear loading condition. The comparison shows consistent results, indicating that the simulation accurately captures the behavior of the AISI 316 austenitic stainless steel alloy under mixed-mode loading conditions. |
| first_indexed | 2024-03-11T00:08:54Z |
| format | Article |
| id | doaj.art-cdb86bd925fa4bed885922f21c2d017a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T00:08:54Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-cdb86bd925fa4bed885922f21c2d017a2023-11-19T00:09:53ZengMDPI AGApplied Sciences2076-34172023-08-011316944610.3390/app13169446Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless SteelAbdulnaser M. Alshoaibi0Abdullateef H. Bashiri1Mechanical Engineering Department, College of Engineering, Jazan University, P.O. Box 114, Jazan 45142, Saudi ArabiaMechanical Engineering Department, College of Engineering, Jazan University, P.O. Box 114, Jazan 45142, Saudi ArabiaThe objective of this study is to examine the behavior of fatigue crack growth (FCG) in the mixed mode (I/II) of the AISI 316 austenitic stainless steel alloy, considering mode mixity angles of 30°, 45°, and 60°. This particular alloy is widely used in the marine industry and various structural components because of its exceptional properties, such as high corrosion resistance, good formability, weldability, and high-temperature strength. By investigating the crack growth behavior, the study seeks to provide insights into the material’s durability and potential for long-term use in demanding applications. To analyze fatigue crack growth behavior using linear elastic fracture mechanics (LEFM), this study utilizes compact tension shear (CTS) specimens with varying loading angles. The CTS specimens provide an accurate simulation of real-world loading conditions by allowing for the application of various loading configurations, resulting in mixed-mode loading. The ANSYS Mechanical APDL 19.2 software, which includes advanced features such as separating, morphing, and adaptive remeshing technologies (SMART), was utilized in this study to precisely model the path of crack propagation, evaluate the associated fatigue life, and determine stress intensity factors. Through comparison with experimental data, it was confirmed that the loading angle had a significant impact on both the fatigue crack growth paths and the fatigue life cycles. The stress-intensity factor predictions from numerical models were compared to analytical data. Interestingly, it was observed that the maximum shear stress and von Mises stresses occurred when the loading angle was 45 degrees, which is considered a pure shear loading condition. The comparison shows consistent results, indicating that the simulation accurately captures the behavior of the AISI 316 austenitic stainless steel alloy under mixed-mode loading conditions.https://www.mdpi.com/2076-3417/13/16/9446finite element methodfatigue crack growthstress-intensity factorsloading anglesfatigue lifelinear elastic fracture mechanics |
| spellingShingle | Abdulnaser M. Alshoaibi Abdullateef H. Bashiri Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel Applied Sciences finite element method fatigue crack growth stress-intensity factors loading angles fatigue life linear elastic fracture mechanics |
| title | Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel |
| title_full | Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel |
| title_fullStr | Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel |
| title_full_unstemmed | Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel |
| title_short | Fatigue Crack Growth Studies under Mixed-Mode Loading in AISI 316 Stainless Steel |
| title_sort | fatigue crack growth studies under mixed mode loading in aisi 316 stainless steel |
| topic | finite element method fatigue crack growth stress-intensity factors loading angles fatigue life linear elastic fracture mechanics |
| url | https://www.mdpi.com/2076-3417/13/16/9446 |
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