Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate
Locking compression plate (LCP) is a common orthopedic instrument for internal fixation and healing of bone trauma. It is important to study on mechanical behavior and failure investigation of LCP because its failure leads to lots of cost and pain to the patient. In this paper, fatigue life of an ei...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Islamic Azad University-Isfahan (Khorasgan) Branch
2018-12-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
| Subjects: | |
| Online Access: | https://admt.isfahan.iau.ir/article_668317_332d8d89772d46a3ecb6aa1fc77b4803.pdf |
| _version_ | 1797657325038731264 |
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| author | Saenoddin Mohajerzadeh Khalil Farhangdoost Pedram Zamani Kamal Kolasangiani |
| author_facet | Saenoddin Mohajerzadeh Khalil Farhangdoost Pedram Zamani Kamal Kolasangiani |
| author_sort | Saenoddin Mohajerzadeh |
| collection | DOAJ |
| description | Locking compression plate (LCP) is a common orthopedic instrument for internal fixation and healing of bone trauma. It is important to study on mechanical behavior and failure investigation of LCP because its failure leads to lots of cost and pain to the patient. In this paper, fatigue life of an eight-hole tibia LCP is evaluated under flexural loading. A four-point bending jig is manufactured and fatigue tests are performed for different compression loads. Fatigue life cycles are investigated for compression loads of 500, 600, 700, 800, 900 and 1000 N and relation between compression load and life cycles is estimated. 125 walking days is estimated for the patient during treatment period according to life cycle results. Post failure analysis results on fracture surface revealed that the crack initiated from the edge of compression hole and propagated from lower to the upper surface of LCP according to beach marks. Finally, Scanning electron microscopy (SEM) on the fracture surface revealed striations as a proof of fatigue crack growth. The striation spacing near the crack initiation site is found to be smaller than this spacing far from the initiation zone. The fatigue crack propagation life is estimated as 1600 cycles according to the number of striation spacings. |
| first_indexed | 2024-03-11T17:42:51Z |
| format | Article |
| id | doaj.art-66a7a897990047738e7d810bf3fbc810 |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:42:51Z |
| publishDate | 2018-12-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-66a7a897990047738e7d810bf3fbc8102023-10-18T09:05:28ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472018-12-011144752668317Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression PlateSaenoddin Mohajerzadeh0Khalil Farhangdoost1Pedram Zamani2Kamal Kolasangiani3Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranLocking compression plate (LCP) is a common orthopedic instrument for internal fixation and healing of bone trauma. It is important to study on mechanical behavior and failure investigation of LCP because its failure leads to lots of cost and pain to the patient. In this paper, fatigue life of an eight-hole tibia LCP is evaluated under flexural loading. A four-point bending jig is manufactured and fatigue tests are performed for different compression loads. Fatigue life cycles are investigated for compression loads of 500, 600, 700, 800, 900 and 1000 N and relation between compression load and life cycles is estimated. 125 walking days is estimated for the patient during treatment period according to life cycle results. Post failure analysis results on fracture surface revealed that the crack initiated from the edge of compression hole and propagated from lower to the upper surface of LCP according to beach marks. Finally, Scanning electron microscopy (SEM) on the fracture surface revealed striations as a proof of fatigue crack growth. The striation spacing near the crack initiation site is found to be smaller than this spacing far from the initiation zone. The fatigue crack propagation life is estimated as 1600 cycles according to the number of striation spacings.https://admt.isfahan.iau.ir/article_668317_332d8d89772d46a3ecb6aa1fc77b4803.pdffailure analysisfatigue lifefour-point bendinglocking compression platestriation spacing |
| spellingShingle | Saenoddin Mohajerzadeh Khalil Farhangdoost Pedram Zamani Kamal Kolasangiani Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate International Journal of Advanced Design and Manufacturing Technology failure analysis fatigue life four-point bending locking compression plate striation spacing |
| title | Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate |
| title_full | Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate |
| title_fullStr | Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate |
| title_full_unstemmed | Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate |
| title_short | Experimental Investigation on Fatigue Evaluation of Orthopaedic Locking Compression Plate |
| title_sort | experimental investigation on fatigue evaluation of orthopaedic locking compression plate |
| topic | failure analysis fatigue life four-point bending locking compression plate striation spacing |
| url | https://admt.isfahan.iau.ir/article_668317_332d8d89772d46a3ecb6aa1fc77b4803.pdf |
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