3.10 Finite Element Analysis in Bone Research: A Computational Method Relating Structure to Mechanical Function ☆

2017 ◽  
pp. 169-196 ◽  
Author(s):  
D. Ruffoni ◽  
G.H. van Lenthe
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Computational Method ◽  
Mechanical Function ◽  
Element Analysis ◽  
Bone Research

Ruled Surfaces, Lie Groups, and Mesh Generation

1997 ◽  
Author(s):  
Kenneth Sprott ◽  
Bahram Ravani
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mesh Generation ◽  
Group Structure ◽  
Computational Method ◽  
Ruled Surfaces ◽  
Element Analysis ◽  
Automatic Mesh Generation ◽  
B Spline ◽  
Automatic Mesh

Abstract This paper develops a method for design of Beziér and B-spline ruled surfaces taking advantage of the Lie group structure associated with the displacement of lines. The result is a computational method which is independent of the choice of coordinate system. The method is unique in that it can be used on a set of intersecting lines and in this way is applied to automatic mesh generation for finite element analysis.

Study on Stress Strain in UG-Based Fatigue Analysis of Piston Pin

2013 ◽  
Vol 676 ◽  
pp. 145-148
Author(s):  
Hong Ying Wang ◽  
Wei Guo
Keyword(s):  
Boundary Condition ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Strain Analysis ◽  
Fatigue Analysis ◽  
Computational Method ◽  
Analysis Method ◽  
Stress Strain ◽  
Element Analysis ◽  
Conventional Algorithm

Carried on finite element analysis using the UG software to finally carry on the fatigue life’s computational method to carry on the exploration and the research. when carrying on the finite element stress strain analysis to the piston pin, used the different analysis method, because the piston pin’s quality is very slightly oppositeing to the piston quality, produces the force of inertia is very small, the counter stress computed result is not very obvious, therefore to piston pin finite element analysis we uses conventional algorithm that infliction boundary condition.

scholarly journals A new computational method for threaded connection stiffness

2016 ◽  
Vol 8 (12) ◽  
pp. 168781401668265 ◽  
Author(s):  
Dongmei Zhang ◽  
Shiqiao Gao ◽  
Xiao Xu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Tensile Tests ◽  
Computational Method ◽  
Screw Thread ◽  
Bolted Connections ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Threaded Connection

For designing bolted connections in machinery applications, it is necessary to estimate the stiffness of the threaded connection. This work provides a new method for computing the stiffness of engaged screw in bolted connections according to the load distribution in screw thread. Finite element analysis is performed by building the three-dimensional model of threaded connection. A set of tensile tests are exerted to validate the accuracy of the suggested model of threaded connection. A good agreement is obtained when the analytical results are compared with finite element analysis results, experimental data, and Yamamoto method. Results reveal that the ultimate strength of thread connections is obviously lower than that of thread material. In addition, the results of calculation and finite element analysis indicated that increasing Young’s modulus of material and the engaged length or decreasing thread pitch could increase the stiffness of the thread portion of a bolt and nut.

Quad-Layer: Layered Quadrilateral Meshing of Narrow Two-Dimensional Domains by Bubble Packing and Chordal Axis Transformation

2002 ◽  
Vol 124 (3) ◽  
pp. 564-573 ◽  
Author(s):  
Soji Yamakawa ◽  
Kenji Shimada
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Large Deformation ◽  
Computational Method ◽  
Two Dimensional ◽  
Element Analysis ◽  
Quadrilateral Mesh ◽  
Line Segments ◽  
Quadrilateral Meshing ◽  
Dimensional Domain

This paper presents a computational method for quadrilateral meshing of a thin, or narrow, two-dimensional domain for finite element analysis. The proposed method creates a well-shaped single-layered, multi-layered, or partially multi-layered quadrilateral mesh. Element sizes can be uniform or graded. A high quality, layered quadrilateral mesh is often required for finite element analysis of a narrow two-dimensional domain with a large deformation such as in the analysis of rubber deformation or sheet metal forming. Fully automated quadrilateral meshing is performed in two stages: (1) extraction of the skeleton of a given domain by discrete chordal axis transformation, and (2) discretization of the chordal axis into a set of line segments and conversion of each of the line segments to a single quadrilateral element or multiple layers of quadrilateral elements. In each step a physically-based computational method called bubble packing is applied to discretize a curve into a set of line segments of specified sizes. Experiments show that the accuracy of a large-deformation FEM analysis can be significantly improved by using a well-shaped quadrilateral mesh created by the proposed method.

Research of Engine Piston Pin Fatigue Analysis Based on UG

2011 ◽  
Vol 383-390 ◽  
pp. 7312-7315
Author(s):  
Hong Pu Liu ◽  
Hong Ying Wang
Keyword(s):  
Boundary Condition ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Static Analysis ◽  
Fatigue Analysis ◽  
Computational Method ◽  
Analysis Method ◽  
Element Analysis ◽  
Engine Piston ◽  
Conventional Algorithm

Carried on finite element analysis using the UG software to finally carry on the fatigue life’s computational method to carry on the exploration and the research. when carrying on the finite element static analysis to the piston pin, used the different analysis method, because the piston pin’s quality is very slightly oppositeing to the piston quality, produces the force of inertia is very small, the counter stress computed result is not very obvious, therefore to piston pin finite element analysis we uses conventional algorithm that infliction boundary condition.

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