Volume 1, Issue 1 (9-2016)                   NMCE 2016, 1(1): 21-36 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Sadrnejad S. Thermo-mechanical behavior of shape memory alloy made stent- graft by multi-plane model. NMCE 2016; 1 (1) :21-36
URL: http://nmce.kntu.ac.ir/article-1-33-en.html
Professor, Civil Engineering Department ,K.N. Toosi University of Technology, Tehran Iran.
Abstract:   (2156 Views)
Constitutive law for shape-memory alloys subjected to multi-axial loading, which is based on a semi-micromechanical integrated multi-plane model capable of internal mechanism observations, is generally not available in the literature. The presented numerical results show significant variations in the mechanical response along the multi loading axes. These are attributed to changes in the martensitic variants nucleated in response to the directionality of the applied loading, as well as to micro-structural texture/fabric present in the multi-planes showing different orientations at any single point through the material. Numerical simulations suggest that the characterization and modeling of the microstructure is of paramount importance in understanding the phenomenology of the thermo-mechanical behavior of shape-memory alloys that are used in manufacturing of stents. The Niti-S Biliary Stent is a self-expanding uncoated tubular prosthesis designed to maintain patency of bile duct strictures caused by malignant tumors. It consists of a self-expanding thermo-mechanical metal stent. The biliary stent is made of Nickel Titanium alloy (Nitinol) wire, which expands at body temperature. The stent is deployed with supplied introducers for percutaneous and endoscopic use. The existing endoprostheses differ in several aspects, such as shape design and materials. The Niti-S Biliary Stent (NNN) is only indicated for the palliation of malignant structures in the biliary. This paper aims to propose a capable multi-plane thermo-mechanical model predicting relevant information to understand the principles of stent-grafts behavior and even to develop new method for the correct use of this device. Hence, the use of a stent-graft is based on different characteristics are predicted, and the significant features of an ideal device can be pointed out. Additionally, the materials currently in use to fabricate this type of prosthesis controlled and checked and consequently new materials may be suggested.
Full-Text [PDF 1120 kb]   (838 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/09/4 | Revised: 2013/12/23 | Accepted: 2014/01/29 | ePublished ahead of print: 2014/02/8

1. [1] Johnston, K.W., Robert, B.R., Tilson, M.D., Dhiraj, M.S., Larry, H. and James, C.S. Suggested standards for reporting on arterial aneurysms. Journal of Vascular Surgery, 1991, 13(3), 452-458. [DOI:10.1067/mva.1991.26737]
2. [2] Cao, P., Verzini, F., Rango, P.D., Maritati, G., Pasquale, F.D. and Parlani, G. Different types of thoracic endografts. Journal of Cardiovascular Surgery, 2009, 50(4), 483-492.
3. [3] Monahan, T.S. and Schneider, D.B. Fenestrated and Branched Stent Grafts for Repair of Complex Aortic Aneurysms. Seminars in Vascular Surgery, 2009, 22(3), 132-139. [DOI:10.1053/j.semvascsurg.2009.07.003]
4. [4] Machado, L.G. and Savi, M.A. Medical applications of shape memory alloys. Brazilian Journal of Medical and Biological Research, 2003, 36, 683-691. [DOI:10.1590/S0100-879X2003000600001]
5. [5] Rutherford, R.B. Vascular surgery. (Saunders, 2005). 17 Katzen, B.T. and MacLean, A.A. Complications of endovascular repair of abdominal aortic aneurysms: A review. CardioVascular and Interventional Radiology, 2006, 29(6), 935-946. [DOI:10.1007/s00270-005-0191-0]
6. [6] Zienkiewicz, O.C., and Pande, G.N., (1977), "Time dependent Multi-laminate Model of Rocks", International Journal of Numerical and Analytical Methods In Geo-mechanics, 1, 219-247. [DOI:10.1002/nag.1610010302]
7. [7] SADRNEZHAD S.A. & PANDE G.N., A Multilaminate Model For Sand, Proceeding of 3rd International symposium on Numerical Models in Geomechanics, NUMOG-III, 8-11 May 1989, Niagara Falls, CANADA.
8. [8] Sadrnezhad S.A., (1992), Multilaminate elastoplastic model for granular media, Journal of Engineering, Islamic Republic of Iran, vol.5, Nos.1&2, May, -11.
9. [9] Sadrnezhad S.A., A Multilaminate Elastic-plastic Model For Liquefaction Of Saturated Sand, Proceeding of the Third International Conference on Seismology and Earthquake Engineering, May 17-19, 1999, I.R.IRAN., p.561-568.
10. [10] Prat, P. C. and Bazant, Z. P., "Microplane model for triaxial deformation of soils", Journal of Engineering Mechanics-Asce, Vol. 1989, (1989), 139-146.
11. [11] Bazant, Z. P., Caner, F. C., Carol, I., Adley, M. D. and Akers, S. A., "Microplane model M4 for concrete. I: Formulation with work- conjugate deviatoric stress", Journal of Engineering Mechanics-Asce, Vol. 126, (2000), 944-953. [DOI:10.1061/(ASCE)0733-9399(2000)126:9(944)]
12. [12] Sadrnejad, S.A. (1992), "Induced Anisotropy Prediction Through Plasticity", Proceeding of International Conference on "Engineering Applications of Mechanics", June 9-12, 1992, Teheran-Iran, p.598-605.
14. [14] Sadrnezhad S.A., (1997), Numerical Identification of Failure Specifications of Soil", 4th International Conference on Civil Engineering, 4-6 May 1997, Teheran, Iran, p. 100-111.
15. [15] Sadrnezhad S.A., (1998), Prediction of The Rotation of Principal Stress Axes in Porous Media by Multi-laminate Based Model, Int. Journal of Univ. of Science & Tech. of IRAN, VOL 9, No.1, pp. 15-33.
16. [16] Rutherford, R.B. Vascular surgery. (Saunders, 2005). 17 Katzen, B.T. and MacLean, A.A. Complications of endovascular repair of abdominal aortic aneurysms: A review. CardioVascular and Interventional Radiology, 2006, 29(6), 935-946. [DOI:10.1007/s00270-005-0191-0]
17. [17] Puskas, J.E. and Chen, Y. Biomedical application of commercial polymers and novel polyisobutylene-based thermoplastic elastomers for soft tissue replacement. Biomacromolecules, 2004, 5(4), 1141-1154. [DOI:10.1021/bm034513k]
18. [18] A. Roohbakhsh Davaran and S. A. Sadrnejad, (2008), A 3D multi-plane model for shape memory alloys, IJE Trasactions A: Basics Vol.21, No. 1, February 2008.
19. [19] Amir Sadjadpour and Kaushik Bhattacharya, (2006), A multimechanics inspired constitutive model for shape-memory alloys: The one-dimensional case, Smart. Mat. Struct.accepted for publication, (2006).
20. [20] Sadjadpour, A. and Bhattacharya, K., (2006), "A micromechanics inspired constitutive model for shape-memory alloys: The one-dimensional case", Smart Mat. Struct., accepted for publication. [DOI:10.1088/0964-1726/16/1/S06]
21. [21] Stoeckel, D., Pelton, A. and Duerig, T. Self-expanding nitinol stents: material and design considerations European Radiology, 2004, 14(2), 292-301. [DOI:10.1007/s00330-003-2022-5]
22. [22] Stoeckel, D. Nitinol medical devices and implants. Minimally Invasive Therapy and Allied Technologies, 2000, 9(2), 81-88. [DOI:10.3109/13645700009063054]
23. [23] De la Flor, S., Urbina, C. and Ferrando, F. Effect of mechanical cycling on stabilizing the transformation behaviour of NiTi shape memory alloys. Journal of Alloys and Compounds, 2009, 469(1-2), 343-349. [DOI:10.1016/j.jallcom.2008.01.140]
24. [24] Medical Device Materials: Proceedings from the Materials & Processes for Medical Devices Conference 2003, 8-10 September 2003, Anaheim, CA, Editor: Shrivastava, S., ASM International, 2003.
25. [25] Eggeler, G., Hornbogen, E., Yawny, A., Heckmann, A. and Wagner, M. Structural and functional fatigue of NiTi shape memory alloys. Materials Science and Engineering: A, 2004, 378(1-2), 24-33. [DOI:10.1016/j.msea.2003.10.327]
26. [26] Shabalovskaya, S., Anderegg, J. and Van Humbeeck, J. Critical overview of Nitinol surfaces and their modifications for medical applications. Acta Biomaterialia, 2008, 4(3), 447-467. [DOI:10.1016/j.actbio.2008.01.013]
27. [27] Lévesque, J., Dubé, D., Fiset, M. and Mantovani, D. Materials and properties for coronary stents. Advanced Materials & Processes, 2004(September), 45-48.
28. [28] Duerig, T., Pelton, A. and Stöckel, D. An overview of nitinol medical applications. Materials Science and Engineering: A, 1999, 273- 275(0), 149-160. [DOI:10.1016/S0921-5093(99)00294-4]
29. [29] Kathuria, Y.P. The potential of biocompatible metallic stents and preventing restenosis. Materials Science and Engineering: A, 2006, 417(1- 2), 40-48. [DOI:10.1016/j.msea.2005.11.007]
30. [30] Shih, C.-C., Shih, C.-M., Su, Y.-Y., Su, L.H.J., Chang, M.-S. and Lin, S.-J. Effect of surface oxide properties on corrosion resistance of 316L stainless steel for biomedical applications. Corrosion Science, 2004, 46(2), 427-441. [DOI:10.1016/S0010-938X(03)00148-3]
31. [31] McNaney, J. M., V. Imbeni, Y. Jung, P. Papadopoulos and R.O. Ritchie, (2003), An experimental study of the superelastic e_ect in a shape-memory Nitinol alloy under biaxial loading, IMech. Mater. 35 969-986. [DOI:10.1016/S0167-6636(02)00310-1]
32. [32] Hanawa, T. Materials for metallic stents. Journal of Artificial Organs, 2009, 12(2), 73-79. [DOI:10.1007/s10047-008-0456-x]
33. [33] Niinomi, M. Recent metallic materials for biomedical applications. Metallurgical and Materials Transactions A, 2002, 33(3), 477-486. [DOI:10.1007/s11661-002-0109-2]
34. [34] Abeyaratne, R., Chu, C., and James, R.D., Kinetics of materials with wiggly energies: theory and application to the evolution of twinning microstructures in a Cu-Al-Ni shape memory alloy. Phil. Mag. A-Physics of Condensed Matter Defects and Mechanical Properties, 73(2): 457-97, 1996. [DOI:10.1080/01418619608244394]
35. [35] Patoor E., El Amrani M., Eberhardt A. and Berveiller M., Procs. ESOMAT'94, J. Physique IV, 5, (1995) C2-495-500.
36. [36] Patoor E., Eberhardt A. and Berveiller M., Arch.Mech. 40 (1988) 775-794.

Add your comments about this article : Your username or Email: