Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics
The damage process is accompanied by the acoustic emission for quasibrittle materials. And in the process of material damage evolution, the length of microcracks satisfies the fractal distribution. Research on their relationship in theory is helpful to reveal the law of material damage evolution and...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1898937 |
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| _version_ | 1832545604873486336 |
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| author | Jie Yang Yanna Zheng Huijing Wang |
| author_facet | Jie Yang Yanna Zheng Huijing Wang |
| author_sort | Jie Yang |
| collection | DOAJ |
| description | The damage process is accompanied by the acoustic emission for quasibrittle materials. And in the process of material damage evolution, the length of microcracks satisfies the fractal distribution. Research on their relationship in theory is helpful to reveal the law of material damage evolution and acoustic emission activities. Damage variable expressions are proposed based on the damage and fractal characteristics firstly. Then, the statistical models for acoustic emission considering damage and fractal characteristics are established by deducing the relationship between acoustic emission parameters and load cycles and fractal dimensions. The effects of damage and fractal effects on acoustic emission parameters are analyzed finally. The results show that the damage accelerates the AE activity to the rougher material, the opposite to the more homogeneous material. It can also be seen that the increase of the fractal dimension, the homogeneity constant m, will substantially increase the AE activities. |
| format | Article |
| id | doaj-art-cc0961ca92494d339eaa7f9c58eb2e60 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-cc0961ca92494d339eaa7f9c58eb2e602025-02-03T07:25:22ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/18989371898937Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal CharacteristicsJie Yang0Yanna Zheng1Huijing Wang2School of Marine and Civil Engineering, Dalian Ocean University, Dalian 116023, ChinaSchool of Marine and Civil Engineering, Dalian Ocean University, Dalian 116023, ChinaDepartment of Naval Architecture, Dalian University of Technology, Dalian 116024, ChinaThe damage process is accompanied by the acoustic emission for quasibrittle materials. And in the process of material damage evolution, the length of microcracks satisfies the fractal distribution. Research on their relationship in theory is helpful to reveal the law of material damage evolution and acoustic emission activities. Damage variable expressions are proposed based on the damage and fractal characteristics firstly. Then, the statistical models for acoustic emission considering damage and fractal characteristics are established by deducing the relationship between acoustic emission parameters and load cycles and fractal dimensions. The effects of damage and fractal effects on acoustic emission parameters are analyzed finally. The results show that the damage accelerates the AE activity to the rougher material, the opposite to the more homogeneous material. It can also be seen that the increase of the fractal dimension, the homogeneity constant m, will substantially increase the AE activities.http://dx.doi.org/10.1155/2018/1898937 |
| spellingShingle | Jie Yang Yanna Zheng Huijing Wang Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics Advances in Materials Science and Engineering |
| title | Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics |
| title_full | Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics |
| title_fullStr | Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics |
| title_full_unstemmed | Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics |
| title_short | Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics |
| title_sort | modifications and statistical analysis of acoustic emission models based on the damage and fractal characteristics |
| url | http://dx.doi.org/10.1155/2018/1898937 |
| work_keys_str_mv | AT jieyang modificationsandstatisticalanalysisofacousticemissionmodelsbasedonthedamageandfractalcharacteristics AT yannazheng modificationsandstatisticalanalysisofacousticemissionmodelsbasedonthedamageandfractalcharacteristics AT huijingwang modificationsandstatisticalanalysisofacousticemissionmodelsbasedonthedamageandfractalcharacteristics |