Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition
The effect of a biaxial load on brittle fractures of solids under predominantly elastic deformation and mode I loading conditions is studied in this article. A cross-shaped specimen is used in this work, and the variation of T-stress is achieved by changing the load applied to the arm parallel to th...
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/18/9319 |
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| author | Chentong Chen Zhanfeng Li Chang Xu Ze Zhu Sheng Zou |
| author_facet | Chentong Chen Zhanfeng Li Chang Xu Ze Zhu Sheng Zou |
| author_sort | Chentong Chen |
| collection | DOAJ |
| description | The effect of a biaxial load on brittle fractures of solids under predominantly elastic deformation and mode I loading conditions is studied in this article. A cross-shaped specimen is used in this work, and the variation of T-stress is achieved by changing the load applied to the arm parallel to the crack. In the tests, under a series of different loads parallel to the crack, a series of load values perpendicular to the crack are obtained, and the stress intensity factor is calculated by FEM (Finite Element Analysis). The test data demonstrate that the apparent fracture toughness of the material varies with the load parallel to the crack and the T-stress, since the T-stress is directly related to the load parallel to the crack. If only the first term of the Williams series solution is used to describe the stress field near the crack tip, the variation of KC is unexplained; therefore, more than one term in the Williams series solutions is used to develop the theory of biaxial effect on solid fracture behavior. The fracture criterion based on this consideration is also used to predict crack instability or crack curving under mode I load conditions. Experimental data are presented and compared with the theory. |
| first_indexed | 2024-03-10T00:48:35Z |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:48:35Z |
| publishDate | 2022-09-01 |
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| spelling | doaj.art-ff18bc99f0cc4290abb0d5651cbcfae52023-11-23T14:56:40ZengMDPI AGApplied Sciences2076-34172022-09-011218931910.3390/app12189319Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I ConditionChentong Chen0Zhanfeng Li1Chang Xu2Ze Zhu3Sheng Zou4School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, ChinaTechnical Engineering Department of Port Dalian Bulk Cargo Terminal Company, Dalian 116001, ChinaSchool of Art and Design, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, ChinaThe effect of a biaxial load on brittle fractures of solids under predominantly elastic deformation and mode I loading conditions is studied in this article. A cross-shaped specimen is used in this work, and the variation of T-stress is achieved by changing the load applied to the arm parallel to the crack. In the tests, under a series of different loads parallel to the crack, a series of load values perpendicular to the crack are obtained, and the stress intensity factor is calculated by FEM (Finite Element Analysis). The test data demonstrate that the apparent fracture toughness of the material varies with the load parallel to the crack and the T-stress, since the T-stress is directly related to the load parallel to the crack. If only the first term of the Williams series solution is used to describe the stress field near the crack tip, the variation of KC is unexplained; therefore, more than one term in the Williams series solutions is used to develop the theory of biaxial effect on solid fracture behavior. The fracture criterion based on this consideration is also used to predict crack instability or crack curving under mode I load conditions. Experimental data are presented and compared with the theory.https://www.mdpi.com/2076-3417/12/18/9319T-stresscross-shaped specimenbiaxial loadcrack curving |
| spellingShingle | Chentong Chen Zhanfeng Li Chang Xu Ze Zhu Sheng Zou Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition Applied Sciences T-stress cross-shaped specimen biaxial load crack curving |
| title | Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition |
| title_full | Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition |
| title_fullStr | Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition |
| title_full_unstemmed | Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition |
| title_short | Variation of Fracture Toughness with Biaxial Load and T-Stress under Mode I Condition |
| title_sort | variation of fracture toughness with biaxial load and t stress under mode i condition |
| topic | T-stress cross-shaped specimen biaxial load crack curving |
| url | https://www.mdpi.com/2076-3417/12/18/9319 |
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