An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM
The slow strain rate tensile test (SSRT) is a common means to investigate stress corrosion cracking (SCC) in key engineering structural materials of light-water reactors, and it is an important task to real-time monitor the crack growing length and rate of the specimen during the test. Because the s...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/5651890 |
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| author | Shuai Wang He Xue Yinghao Cui Fuqiang Yang Rui Guo |
| author_facet | Shuai Wang He Xue Yinghao Cui Fuqiang Yang Rui Guo |
| author_sort | Shuai Wang |
| collection | DOAJ |
| description | The slow strain rate tensile test (SSRT) is a common means to investigate stress corrosion cracking (SCC) in key engineering structural materials of light-water reactors, and it is an important task to real-time monitor the crack growing length and rate of the specimen during the test. Because the specimen is placed in an autoclave with high-pressure and high-temperature water environment-simulated light-water reactor, the current potential drop method, which includes current potential drop (DCPD) and alternating current potential drop (ACPD), is the main means to real-time monitor crack growth rate in the SCC test. As a supplementary means to obtain the crack growth rate during the test, the SSRT process of nickel-based Alloy 600 CT specimens is investigated by using the elastic-plastic finite element method (EPFEM) in this paper. Based on the consideration that both the elastic-plastic deformation and crack length of the specimen would affect the relationship between the load and the displacement of the loading point during the SSRT test, the relationship between the loading point displacement caused by crack propagation ΔLc and plastic deformation ΔLp is separated by EPFEM. Then, the SCC crack growth rate and the real-time crack length are obtained. This proposed approach could be used to improve the test results in the SSRT test. |
| format | Article |
| id | doaj-art-5e726f68b20040ab9aed0061546a1e7b |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5e726f68b20040ab9aed0061546a1e7b2025-02-03T01:09:57ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/56518905651890An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEMShuai Wang0He Xue1Yinghao Cui2Fuqiang Yang3Rui Guo4School of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Science, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaThe slow strain rate tensile test (SSRT) is a common means to investigate stress corrosion cracking (SCC) in key engineering structural materials of light-water reactors, and it is an important task to real-time monitor the crack growing length and rate of the specimen during the test. Because the specimen is placed in an autoclave with high-pressure and high-temperature water environment-simulated light-water reactor, the current potential drop method, which includes current potential drop (DCPD) and alternating current potential drop (ACPD), is the main means to real-time monitor crack growth rate in the SCC test. As a supplementary means to obtain the crack growth rate during the test, the SSRT process of nickel-based Alloy 600 CT specimens is investigated by using the elastic-plastic finite element method (EPFEM) in this paper. Based on the consideration that both the elastic-plastic deformation and crack length of the specimen would affect the relationship between the load and the displacement of the loading point during the SSRT test, the relationship between the loading point displacement caused by crack propagation ΔLc and plastic deformation ΔLp is separated by EPFEM. Then, the SCC crack growth rate and the real-time crack length are obtained. This proposed approach could be used to improve the test results in the SSRT test.http://dx.doi.org/10.1155/2019/5651890 |
| spellingShingle | Shuai Wang He Xue Yinghao Cui Fuqiang Yang Rui Guo An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM Advances in Materials Science and Engineering |
| title | An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM |
| title_full | An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM |
| title_fullStr | An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM |
| title_full_unstemmed | An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM |
| title_short | An Approach to Estimate SCC Growing Rate in Slow Strain Rate Tensile Test Based on EPFEM |
| title_sort | approach to estimate scc growing rate in slow strain rate tensile test based on epfem |
| url | http://dx.doi.org/10.1155/2019/5651890 |
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