Estimation Method of Interfacial Stress Distribution by Inverse Analysis of Deformed Shape Data

Author(s):  
Yoshinao Kishimoto ◽  
Yukiyoshi Kobayashi ◽  
Feng Jin
2016 ◽  
Vol 3 (4) ◽  
pp. 15-00597-15-00597
Author(s):  
Yoshinao KISHIMOTO ◽  
Yukiyoshi KOBAYASHI ◽  
Toshihisa OHTSUKA ◽  
Shin YAMAGATA

2017 ◽  
Vol 4 (5) ◽  
pp. 16-00717-16-00717 ◽  
Author(s):  
Yoshinao KISHIMOTO ◽  
Yukiyoshi KOBAYASHI ◽  
Toshihisa OHTSUKA ◽  
Motoi NIIZUMA

2019 ◽  
Vol 6 (3) ◽  
pp. 18-00471-18-00471 ◽  
Author(s):  
Yoshinao KISHIMOTO ◽  
Yukiyoshi KOBAYASHI ◽  
Toshihisa OHTSUKA ◽  
Akira MATSUMOTO ◽  
Motoi NIIZUMA

2007 ◽  
Vol 342-343 ◽  
pp. 885-888
Author(s):  
Dong Ki Yoo ◽  
Seong Joo Heo ◽  
Jai Young Koak ◽  
Seong Kyun Kim ◽  
Young Jun Lim ◽  
...  

Various studies recommend that threaded type implants should be used to maximize initial contact, improve initial stability, enlarge implant surface area, and favor dissipation of interfacial stress. The objective of this study was to compare four types of screw implants placed in posterior region of mandible model and evaluate the influences of implant shape, configuration, length, diameter and abutment connection method on stress distribution using a three-dimensional finite analysis. Four types of two-length implant models — 8.5 and 13 mm — were selected and the wide diameter was also used. Four groups were classified by implant outline and connection manner A load of 100 N was applied vertically on the center of the implant. Oblique and horizontal loads were taken as equal to that of the vertical load. The TMJ area in mandibular model was constrained in all directions. Results show that the stress of two-length implants was similar in all groups and the internal connection implant with appropriate thickness of inner part of the implant had better stress distribution.


2021 ◽  
Author(s):  
Adekunle Sulaimon Ogunbadejo ◽  
André McDonald ◽  
Sanjeev Chandra

Abstract Thermally sprayed coatings can be used in structural health monitoring devices where the coatings can reveal defects in the real-time integrity of the component through changes in mechanical, thermal or modal properties during service. In this emerging application, the mechanical properties of the coating are strongly affected by the interfacial bond between the coating and the substrate. This paper presents an analytical study of the interfacial stress distribution based on piezoresistive-stress constitutive relation of a coating layer. Both a single layer coating- and a bilayer coating-substrate system were considered. An analytical solution of the interfacial stress was developed by solving a Fredholm-Volterra singular integro-differential equation of a coating-substrate model using Chebyshev polynomials. Numerical simulation was conducted to analyze the effects of geometric and effective material properties of the coating-substrate system on the interfacial stress distribution. It was found that the susceptibility of the piezoresistive layer to delamination primarily relies on thicknesses of the coating layers and the stiffness of the intermediary insulating layer and substrate.


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