Computational Engineering Analysis of Low-Cycle Loading for AMF-Active Micro Forceps 316 L-Stainless Steel Material by Finite Element Method

• Authors: Ö. Karaçalı
• Languages of publication: EN

Abstracts

EN

Antagonistic contact on tips of active micro forceps produces surface stresses leading to fracture and wear finally leading to fatal failure. It was the aim of the present research to study the outcome of low cycle loading testing parts of active micro forceps materials involving either surface contact fatigue or flexural loading mechanisms. For this purpose, this research was focused on the mechanisms of the fatigue life of 316 L-type stainless steel active micro forceps in low cycle loading conditions. This could result in the fatigue failure of active micro forceps at stress levels below the yielding stress of material. Thus, researching the material and mechanical behaviors of an active micro forceps structure and force mechanism under low cycle loading is vital. Finite element method with accurate geometry and material properties was employed for a biocompatible forceps' tips in the computational modeling. To justify the data collected from Von Mises' yield condition, the Haigh diagram was developed to analyze fatigue wear. The low cycle loading behavior of the active micro forceps was analyzed in computational engineering tool of ANSYS LS-DYNA under operational load conditions in vitrectomy. The results of the analysis obtained from this research are helpful for micro component manufacturer and clinic surgery operation.

Keywords

EN

81.70.-q; 81.70.Bt; 02.70.-c; 02.70.Dh

Discipline

• 02.70.-c: Computational techniques; simulations(for quantum computation, see 03.67.Lx; for computational techniques extensively used in subdivisions of physics, see the appropriate section; for example, see 47.11.-j Computational methods in fluid dynamics)
• 81.70.Bt: Mechanical testing, impact tests, static and dynamic loads(see also 62.20.M- Structural failure of materials; 46.50.+a Fracture mechanics, fatigue, and cracks)
• 02.70.Dh: Finite-element and Galerkin methods
• 81.70.-q: Methods of materials testing and analysis(see also 82.80.-d Chemical analysis and related physical methods of analysis)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2B
• Pages: B-40-B-42

Dates

published

2015-8

Contributors

author

Ö. Karaçalı

• Istanbul University, Faculty of Engineering, Department of Mechanical Engineering, Avcılar, Istanbul, 34320, Turkey

References

• [1] D.H. Bacon, L. Edwards, Int. J. Fatigue 48, 39 (2013), doi: 10.1016/j.ijfatigue.2012.09.016
• [2] T.M. Ahmed, A. Alfantazi, Eng. Failure Anal. 16, 1432 (2009), doi: 10.1016/j.engfailanal.2008.09.015
• [3] S.G. Hong, K. Lee, S.B. Lee, Int. J. Fatigue 27, 1420 (2005), doi: 10.1016/j.ijfatigue.2005.06.037
• [4] L. Liu, N.H. Loh, Powder Technol. 206, 246 (2011), doi: 10.1016/j.powtec.2010.09.027
• [5] ASTM F138, Standard Specification for Wrought 18Chromium-14Nickel-2.5Molybdenum Stainless Steel Bar and Wire for Surgical Implants (UNS S31673), ASTM International, West Conshohocken 2013

Identifiers

DOI

10.12693/APhysPolA.128.B-40