Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel
Based on L<sub>cr</sub> wave acoustoelastic theory, the influence mechanism of blind-hole on stress evaluation with L<sub>cr</sub> wave was discussed. Combined with equivalent method, the blind-holes with different diameters were preset, the difference in time of flight betwe...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2017-07-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2017/V45/I7/97 |
| _version_ | 1797967199309135872 |
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| author | LIU Bin SHI Chang-liang MIAO Wen-bing DONG Shi-yun |
| author_facet | LIU Bin SHI Chang-liang MIAO Wen-bing DONG Shi-yun |
| author_sort | LIU Bin |
| collection | DOAJ |
| description | Based on L<sub>cr</sub> wave acoustoelastic theory, the influence mechanism of blind-hole on stress evaluation with L<sub>cr</sub> wave was discussed. Combined with equivalent method, the blind-holes with different diameters were preset, the difference in time of flight between L<sub>cr</sub> wave was calculated by cross correlation coefficient function, the L<sub>cr</sub> wave acoustoelastic coefficient was determined with linear fitting function, the influence mechanism of blind-hole diameter on L<sub>cr</sub> wave acoustoelastic coefficient was clarified based on the elastic plastic deformation theory and stress concentration theory of hole. The results show that when the diameter of blind-hole is different, the change rule of the difference in time of flight between L<sub>cr</sub> wave is basically the same as stress increases, the difference in time of flight between L<sub>cr</sub> wave increases linearly as stress increases, while the nonlinear feature is also gradually obvious, the maximum stress in linear stage is less than the yield strength of specimen, the L<sub>cr</sub> wave acoustoelastic coefficient decreases gradually as blind-hole diameter increases, and it tends to be constant. The analysis shows that the stress concentration is seen as the main reason for above results, anisotropic structure of specimen and blind-hole depth are also the important reasons for that. |
| first_indexed | 2024-04-11T02:27:25Z |
| format | Article |
| id | doaj.art-dd9e0155ea7741269b8005f99dce6f35 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:27:25Z |
| publishDate | 2017-07-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-dd9e0155ea7741269b8005f99dce6f352023-01-02T22:37:13ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812017-07-014579710210.11868/j.issn.1001-4381.2015.001437201707001437Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon SteelLIU Bin0SHI Chang-liang1MIAO Wen-bing2DONG Shi-yun3School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, ChinaGuangdong Industrial Analysis and Testing Center, Guangzhou 510650, ChinaSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, ChinaNational Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, ChinaBased on L<sub>cr</sub> wave acoustoelastic theory, the influence mechanism of blind-hole on stress evaluation with L<sub>cr</sub> wave was discussed. Combined with equivalent method, the blind-holes with different diameters were preset, the difference in time of flight between L<sub>cr</sub> wave was calculated by cross correlation coefficient function, the L<sub>cr</sub> wave acoustoelastic coefficient was determined with linear fitting function, the influence mechanism of blind-hole diameter on L<sub>cr</sub> wave acoustoelastic coefficient was clarified based on the elastic plastic deformation theory and stress concentration theory of hole. The results show that when the diameter of blind-hole is different, the change rule of the difference in time of flight between L<sub>cr</sub> wave is basically the same as stress increases, the difference in time of flight between L<sub>cr</sub> wave increases linearly as stress increases, while the nonlinear feature is also gradually obvious, the maximum stress in linear stage is less than the yield strength of specimen, the L<sub>cr</sub> wave acoustoelastic coefficient decreases gradually as blind-hole diameter increases, and it tends to be constant. The analysis shows that the stress concentration is seen as the main reason for above results, anisotropic structure of specimen and blind-hole depth are also the important reasons for that.http://jme.biam.ac.cn/CN/Y2017/V45/I7/97L<sub>cr</sub> wave acoustoelastic theorystress concentrationnondestructive evaluationelastic plastic deformationinteraction influence |
| spellingShingle | LIU Bin SHI Chang-liang MIAO Wen-bing DONG Shi-yun Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel Cailiao gongcheng L<sub>cr</sub> wave acoustoelastic theory stress concentration nondestructive evaluation elastic plastic deformation interaction influence |
| title | Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel |
| title_full | Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel |
| title_fullStr | Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel |
| title_full_unstemmed | Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel |
| title_short | Interaction Influence of Flaw and Stress on L<sub>cr</sub> Wave Acoustoelastic Coefficient of Carbon Steel |
| title_sort | interaction influence of flaw and stress on l sub cr sub wave acoustoelastic coefficient of carbon steel |
| topic | L<sub>cr</sub> wave acoustoelastic theory stress concentration nondestructive evaluation elastic plastic deformation interaction influence |
| url | http://jme.biam.ac.cn/CN/Y2017/V45/I7/97 |
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