Buckling Behavior of Catheter Reinforced with Braids under Axial Compression after Torsion: Effect of Deformation Speed on Buckling Region

Abstract:

The purpose of this research is to investigate the relation between the deformation speed and the buckling phenomenon of the catheters, which is made of soft nylon resin and is reinforced with thin stainless wires called braid. In general, the buckling phenomenon of the catheter is complicated because the different types of several loads such as torsion and bending are applied simultaneously to the catheter. In this study, as the initial step to reveal the buckling behavior under combined loading state, the buckling behaviors under combined loading of compression and torsion are examined. Especially, in this study, the buckling tests under various initial torsion are conducted by changing the axial displacement speed. And then, the effect of the stress relaxation on the occurrence region of buckling under combined loading state is revealed in this paper.

• Periodical: Applied Mechanics and Materials (Volume 597)
• Pages: 291-295
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.597.291
• Online since: July 2014
• Authors: Yasuyuki Kato*
• Keywords: Buckling Region, Catheter, Displacement Speed, Initial Torsion, Viscoelastic Property

References

[1] Y. Kato, S. Krosawa and M. Ueda: Advanced Materials Research, Vols. 622-623 (2013), p.1330.

[2] Y. Kato, M. Ueda: Applied Mechanics and Materials, Vol. 372 (2013), p.261.

[3] Y. Kato: Advanced Materials Research, Vol. 856 (2014), p.384.