Finite element analysis of the contact interface between trans-femoral stump and prosthetic socket

2013 ◽  
Author(s):  
Linlin Zhang ◽  
Ming Zhu ◽  
Ling Shen ◽  
Feng Zheng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Contact Interface ◽  
Element Analysis ◽  
Prosthetic Socket

Finite Element Analysis of Reinforced Concrete Beams with Exterior FRP Shell

2011 ◽  
Vol 243-249 ◽  
pp. 1461-1465
Author(s):  
Chuan Min Zhang ◽  
Chao He Chen ◽  
Ye Fan Chen
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Test Results ◽  
Contact Interface ◽  
Accurate Calculation ◽  
Element Analysis

The paper makes an analysis of the reinforced concrete beams with exterior FRP Shell in Finite Element, and compares it with the test results. The results show that, by means of this model, mechanical properties of reinforced concrete beams with exterior FRP shell can be predicted better. However, the larger the load, the larger deviation between calculated values and test values. Hence, if more accurate calculation is required, issues of contact interface between the reinforced concrete beams and the FRP shell should be taken into consideration.

Contact Between Elastic Bodies With an Elliptic Contact Interface in Torsion

1997 ◽  
Vol 64 (1) ◽  
pp. 144-148 ◽  
Author(s):  
J. F. Cuttino ◽  
T. A. Dow
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
The Other ◽  
Contact Interface ◽  
Element Analysis ◽  
Elastic Bodies ◽  
Torque Generation ◽  
Elliptical Contact ◽  
Elliptic Contact

When two elastic three-dimensional bodies of specified radii come into contact, Hertzian forces at the interface result in the formation of an elliptical contact area. The rotation of one body relative to the other about an axis normal to the contact induces a nonlinear torque due to the progression of sliding in the contact interface. Using finite element analysis, a relationship describing torsional compliance with slip is presented for two elastic bodies with an elliptic contact interface under pure twist. The effect of changing material and geometric parameters is studied, and the relationships between torque generation and angle are defined with respect to these nondimensionalized parameters.

FEM Analysis on Failure of Buried Pipelines Conveying Fluid Crossing Fault

2010 ◽  
Vol 168-170 ◽  
pp. 2658-2662
Author(s):  
Xiao Sheng Song ◽  
Qing Jie Zhu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fem Analysis ◽  
Interface Problems ◽  
Contact Interface ◽  
Analysis Software ◽  
Buried Pipelines ◽  
Element Analysis ◽  
Underground Pipelines ◽  
Conveying Fluid

This paper analyzes the interface problems of underground pipelines including pipe-soil contact interface and fluid-solid coupled interaction using finite element analysis software ADINA. In this analyzing work, the influence of site, fault and characteristics of pipelines are comprehensively considered. Then some key parameters greatly affect the failure of pipelines are present and some suggested countermeasures are put forward.

Nonlinear Finite Element Analysis of the Stability of Gravity Platform

2014 ◽  
Vol 578-579 ◽  
pp. 292-295
Author(s):  
Xin Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Effect ◽  
Oil Field ◽  
Nonlinear Finite Element ◽  
Interface Element ◽  
Contact Interface ◽  
Element Analysis ◽  
The Stability ◽  
Gravity Platform

Gravity platform was widely used in the development of marginal oil field, but the existence of scour pit caused by the flow and wave increasing the possibility to overturn. The paper introduced the no depth contact interface element to simulate the nonlinear effect between the bucket skirt and soil, and introduced the birth-death element to simulate the increasing scour pit. The results provide guidance to prevent overturning.

Dynamic analysis of disc spring effects on the contact pressure of the collet—spindle interface in a high-speed spindle system

2009 ◽  
Vol 223 (5) ◽  
pp. 1191-1201 ◽  
Author(s):  
Y S Chen ◽  
C C Chiu ◽  
Y D Cheng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Contact Pressure ◽  
High Speed ◽  
Drill Bit ◽  
Contact Interface ◽  
Element Analysis ◽  
Machining Quality ◽  
Static Conditions ◽  
Disc Spring

In a high-speed gas spindle, the drawbar force required to hold the drill bit is produced by the deformation of disc spring stacks. This drawbar force, applied to the collet—spindle interface, generates a contact pressure on the collet to hold the drill bit in position. Thus, the behaviour of the collet—spindle interface is critical to machining quality. Accordingly, this study investigated how disc spring characteristics affect the collet—spindle interface in a high-speed spindle. Typi-cally, the drawbar force will decrease following the deformation of disc springs resulting from the effects of centrifugal force at high rotational speeds. This effect must be considered, especially in high-speed spindle applications. This study first measured the drawbar force experimentally and compared these results with theoretical and finite-element analysis (FEA) data under static conditions (i.e. no rotation). Having obtained satisfactory agreement among these data, the FEA was extended to a further investigation. Properties of the collet—spindle contact interface were analysed, given changes in rotational speed from 0 to 300 000 r/min under various disc spring deflections, various friction coefficients between the disc springs and their support, and distinct taper angles at the collet—spindle interface. All of these conditions are discussed here. These essential parameters are believed to cover much of the design of high-speed gas spindle systems.

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