Numerical Analysis for Creep Deformation Behavior of Catheter under Two Stage Step Stress for Bending and Torsion

2017 ◽  
Vol 2017.30 (0) ◽  
pp. 159
Author(s):  
Yasuyuki KATO ◽  
Hiroyuki IIDA
Keyword(s):  
Numerical Analysis ◽  
Creep Deformation ◽  
Deformation Behavior ◽  
Two Stage

Creep Behavior of Catheter Reinforced with Braids: Analytical Simulation of Uniaxial Tension under Two-Stage Step Stress

2013 ◽  
Vol 856 ◽  
pp. 384-388 ◽  
Author(s):  
Yasuyuki Kato
Keyword(s):  
Numerical Simulation ◽  
Uniaxial Tension ◽  
Creep Behavior ◽  
Creep Deformation ◽  
Deformation Behavior ◽  
Mechanical Model ◽  
Principal Axis ◽  
Two Stage ◽  
Spring Element ◽  
Analytical Simulation

This paper describes the creep deformation behavior of catheter which is made of soft nylon resin and is reinforced with thin stainless wires called braid. In this research, the creep deformation behavior of uniaxial tension generated under two-stage step stress is examined as the most fundamental case that the principal axis of stress is fixed in a space. And the mechanical model, which is composed of a Voigt unit and a single spring element, is proposed for representing the creep deformation behavior. Then, the numerical simulation is carried out, and the validity of this model is verified by comparing the analytical results with the experimental results under two-stage step stress.

Numerical Analysis for Process Parameter Effect in Electromagnetic Impact Welding of Aluminum Alloy Sheet

2014 ◽  
Vol 548-549 ◽  
pp. 297-300
Author(s):  
Dae Yong Kim ◽  
Hyeon Il Park ◽  
Ji Hoon Kim ◽  
Sang Woo Kim ◽  
Young Seon Lee
Keyword(s):  
Aluminum Alloy ◽  
Numerical Analysis ◽  
Deformation Behavior ◽  
Three Dimensional ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Sheet Metals ◽  
Charge Voltage ◽  
Flat Sheet ◽  
Impact Welding

Studies on electromagnetic impact welding between similar or dissimilar flat sheet metals using the flat one turn coil have been recently achieved. In this study, three dimensional electromagnetic-mechanical coupled numerical simulations are performed for the electromagnetic impact welding of aluminum alloy sheets with flat rectangular one turn coil. The deformation behavior during impact welding was examined. The effect of process parameters such as charge voltage, standoff distance and gap distance were investigated.

Investigation on Creep Behavior of Grade 91 Heat-Resistant Steel at 923K

2016 ◽  
Vol 853 ◽  
pp. 163-167
Author(s):  
Fa Cai Ren ◽  
Xiao Ying Tang
Keyword(s):  
Creep Rate ◽  
Creep Behavior ◽  
Creep Deformation ◽  
Deformation Behavior ◽  
Minimum Creep Rate ◽  
Resistant Steel ◽  
Creep Tests ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Grade 91

Creep deformation behavior of SA387Gr91Cl2 heat-resistant steel used for steam cooler has been investigated. Creep tests were carried out using flat creep specimens machined from the normalized and tempered plate at 973K with stresses of 100, 125 and 150MPa. The minimum creep rate and rupture time dependence on applied stress was analyzed. The analysis showed that the heat-resistant steel obey Monkman-Grant and modified Monkman-Grant relationships.

Sign in / Sign up

Export Citation Format

Share Document