Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method
Metal materials can inevitably show deteriorated properties by the factors of stress, temperature, and environmental erosion in distinct operating environments. Without proper protection, the service life would be shortened or even deadly danger would be caused. This study aims to apply Finite Eleme...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/508630 |
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| _version_ | 1850166815626362880 |
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| author | Han-Sung Huang |
| author_facet | Han-Sung Huang |
| author_sort | Han-Sung Huang |
| collection | DOAJ |
| description | Metal materials can inevitably show deteriorated properties by the factors of stress, temperature, and environmental erosion in distinct operating environments. Without proper protection, the service life would be shortened or even deadly danger would be caused. This study aims to apply Finite Element Method and Boundary Element Method to analyzing the effects of corroded petrochemical pipes on the fatigue life and the fracture form. The research results of nondestructive testing and software analyses show that cracked oil pipes with uniform corrosion bear larger stress, mainly internal pressure, on the longitudinal direction than the circumferential direction. As a result, the maximal fatigue loading cycle of a circumferential crack is higher than that of a longitudinal one. From the growing length and depth of a crack, the final aspect ratio of crack growth appears in 2.42–3.37 and 2.71–3.42 on the circumferential and longitudinal direction, respectively. Meanwhile, the ratios of loading cycles of circumferential and longitudinal crack are 26.23 on uncorroded and 20.54 on general metal loss oil pipe. The complete crack growth and the correspondent fatigue loading cycle could be acquired to determine the service life of the oil pipe being operated as well as the successive recovery time. |
| format | Article |
| id | doaj-art-d8b6d2e8fdda4e48af80db9a226bf06d |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-d8b6d2e8fdda4e48af80db9a226bf06d2025-08-20T02:21:20ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/508630508630Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element MethodHan-Sung Huang0Graduate Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, Kaohsiung City 824, TaiwanMetal materials can inevitably show deteriorated properties by the factors of stress, temperature, and environmental erosion in distinct operating environments. Without proper protection, the service life would be shortened or even deadly danger would be caused. This study aims to apply Finite Element Method and Boundary Element Method to analyzing the effects of corroded petrochemical pipes on the fatigue life and the fracture form. The research results of nondestructive testing and software analyses show that cracked oil pipes with uniform corrosion bear larger stress, mainly internal pressure, on the longitudinal direction than the circumferential direction. As a result, the maximal fatigue loading cycle of a circumferential crack is higher than that of a longitudinal one. From the growing length and depth of a crack, the final aspect ratio of crack growth appears in 2.42–3.37 and 2.71–3.42 on the circumferential and longitudinal direction, respectively. Meanwhile, the ratios of loading cycles of circumferential and longitudinal crack are 26.23 on uncorroded and 20.54 on general metal loss oil pipe. The complete crack growth and the correspondent fatigue loading cycle could be acquired to determine the service life of the oil pipe being operated as well as the successive recovery time.http://dx.doi.org/10.1155/2015/508630 |
| spellingShingle | Han-Sung Huang Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method Advances in Materials Science and Engineering |
| title | Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method |
| title_full | Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method |
| title_fullStr | Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method |
| title_full_unstemmed | Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method |
| title_short | Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method |
| title_sort | fracture characteristics analysis of pressured pipeline with crack using boundary element method |
| url | http://dx.doi.org/10.1155/2015/508630 |
| work_keys_str_mv | AT hansunghuang fracturecharacteristicsanalysisofpressuredpipelinewithcrackusingboundaryelementmethod |