scholarly journals Residual stress produced by ventricular volume reduction surgery has little effect on ventricular function and mechanics: A finite element model study

2001 ◽  
Vol 122 (3) ◽  
pp. 592-599 ◽  
Author(s):  
Julius M. Guccione ◽  
Scott M. Moonly ◽  
Arthur W. Wallace ◽  
Mark B. Ratcliffe
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Finite Element Model ◽  
Ventricular Function ◽  
Element Model ◽  
Ventricular Volume ◽  
Volume Reduction ◽  
Model Study

scholarly journals Finite element and biomechanical analysis of risk factors for implant failure during tension band plating

2020 ◽  
Vol 48 (11) ◽  
pp. 030006052097207
Author(s):  
Jing Ding ◽  
Fei Wang ◽  
Fangchun Jin ◽  
Zhen-kai Wu ◽  
Pin-quan Shen
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Biomechanical Model ◽  
Element Model ◽  
Tension Band ◽  
Biomechanical Analysis ◽  
Implant Failure ◽  
Element Analysis

Objective Tension band plating has recently gained widespread acceptance as a method of correcting angular limb deformities in skeletally immature patients. We examined the role of biomechanics in procedural failure and devised a new method of reducing the rate of implant failure. Methods In the biomechanical model, afterload (static or cyclic) was applied to each specimen. The residual stress of the screw combined with different screw sizes and configurations were measured and compared by X-ray diffraction. With regard to static load and similar conditions, the stress distribution was analyzed according to a three-dimensional finite element model. Results The residual stress was close to zero in the static tension group, whereas it was very high in the cyclic load group. The residual stress of screws was significantly lower in the convergent group and parallel group than in the divergent group. The finite element model showed similar results. Conclusions In both the finite element analysis and biomechanical tests, the maximum stress of the screw was concentrated at the position where the screws enter the cortex. Cyclic loading is the primary cause of implant failure.

The Influence of Residual Stress on the Machining Deformation

2012 ◽  
Vol 426 ◽  
pp. 172-176
Author(s):  
Hun Guo
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Finite Element Model ◽  
Simulation Model ◽  
Elasticity Theory ◽  
Initial Stress ◽  
Fem Simulation ◽  
Element Model ◽  
Fem Model ◽  
Simulation Results

The key problems in 2D FEM simulation such as the establishment of finite element model, the initial stress loading, the distortion appraisal are solved and 2D FEM simulation model is built to analyze the milling distortion caused by the residual stress. The FEM model is verified by the elasticity theory. Some machining cases are simulated by using of the FEM model. The machining distortion caused by residual stress are analyzed and summarized using the simulation results.

scholarly journals Design features of a three-dimensional molar crown and related maximum principal stress. A finite element model study

2010 ◽  
Vol 26 (2) ◽  
pp. 156-163 ◽  
Author(s):  
Brian T. Rafferty ◽  
Malvin N. Janal ◽  
Ricardo A. Zavanelli ◽  
Nelson R.F.A. Silva ◽  
E. Dianne Rekow ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Principal Stress ◽  
Three Dimensional ◽  
Element Model ◽  
Maximum Principal Stress ◽  
Design Features ◽  
Model Study
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