Computational Technique of the Sliding Interface in Numerical Simulations of 3D Penetration

2013 ◽  
Vol 477-478 ◽  
pp. 295-298
Author(s):  
Jun Yan ◽  
Feng Wang ◽  
Jian Hua Shen ◽  
Lin Sha
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Computational Technique ◽  
Analog Computation ◽  
Finite Element Program ◽  
3D Finite Element ◽  
Aluminum Target ◽  
Sliding Interface ◽  
Element Program ◽  
Lagrange Finite Element

Based on the Lagrange finite element method, a simplified computational technique for sliding interface in oblique penetration is proposed in the paper. By applying the 3D finite element program developed on this technique to numerical analog computation of ogive-noded steel rod penetrating in the aluminum target, a result which is consistent with that of A.J.Piekutowskis experiment can be reached. Hence it proves the rationality and validity of the program and method discussed in this paper and that the method is useful in the numerical study of penetration and perforation.

An Experimental and Numerical Study to Analysis and Design of Sheet Hydroforming Process for an Automobile Fender Shell

2006 ◽  
Author(s):  
Mohammad Habibi Parsa ◽  
Payam Darbandi
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Fluid Pressure ◽  
Finite Element Program ◽  
New Approach ◽  
Explicit Finite Element ◽  
Sheet Hydroforming ◽  
Analysis And Design ◽  
Hydroforming Process ◽  
Element Program

A new approach for manufacturing of shell fender is proposed and has been examined numerically and experimentally. The new suggested method is based on sheet hydroforming process, which has a lot of advantages over conventional deep drawing process. After defining the shape of initial blank using an inverse finite element program, numerical evaluation of the proposed sheet hydroforming process for production of shell fender has been carried out using an explicit finite element code considering fluid pressure, boundary conditions and tools. Then experimental evaluation has been carried out using down sized specimen and the results have been compared with results of previous simulations. It has been shown that there are similar trends between finite element and experimental results.

Nonlinear Numerical Study of Cold-Formed Lipped Channel Beam-Columns

2014 ◽  
Vol 919-921 ◽  
pp. 183-187
Author(s):  
Ming Chen ◽  
Zhi Bin Feng ◽  
Zhou Zhou ◽  
Ya Long Wang ◽  
Qiang Zhang
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Engineering Practice ◽  
Time Saving ◽  
Finite Element Program ◽  
Beam Columns ◽  
Load Carrying ◽  
Element Program ◽  
Channel Beam ◽  
Overall Buckling

Cold-formed lipped channel sections may fail in local, distortional and overall buckling under compression. With the development of computer technology, finite element analyses of these sections play increasing important roles in engineering practice for economic design and time-saving purpose. A kind of typical cold-formed lipped channel beam-column with varying load eccentricity was analyzed in this paper by using the finite element program of ANSYS to observe the buckling modes and load carrying capacities of the columns. All the results can be the reference for further studies.

The Effect of Viscous and Hysteretic Damping on Rotor Stability

2000 ◽  
Author(s):  
Anthony M. Cerminaro ◽  
Frederick C. Nelson
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Rotor System ◽  
Viscous Damping ◽  
Finite Element Program ◽  
Hysteretic Damping ◽  
Element Program

A rotordynamic finite element program has been modified to include internal viscous and hysteretic damping. A numerical study has been done on a rotor system with variable external damping to predict the effect of various amounts of internal viscous and hysteretic damping on rotor stability. Three cases are considered: (1) external viscous damping with internal viscous damping; (2) external hysteretic damping with internal hysteretic damping; and (3) external viscous damping with internal hysteretic damping.

scholarly journals Comparison between Experimental and 3D Finite Element Analysis of Reinforced and Partially Pre-Stressed Concrete Solid Beams Subjected to Combined Load of Bending, Torsion and Shear

2008 ◽  
Vol 5 (1) ◽  
pp. 79
Author(s):  
A. S. Alnuaimi
Keyword(s):  
Finite Element ◽  
Prestressed Concrete ◽  
Failure Load ◽  
Element Analysis ◽  
Finite Element Program ◽  
3D Finite Element ◽  
Combined Load ◽  
Perfectly Plastic ◽  
Non Linear ◽  
Element Program

This paper presents a non-linear analysis of three reinforced and two partially prestressed concrete solid beams based on a 20 node isoparametric element using an in-house 3D finite element program. Anon linear elastic isotropic model, proposed by Kotsovos, was used to model concrete behaviour, while steel was modelled as an embedded element exhibiting elastic-perfectly plastic response. Allowance was made for shear retention and for tension stiffening in concrete after cracking. Only in a fixed direction, smeared cracking modelling was adopted. The beams dimensions were 300x300 mm cross section, 3800 mm length and were subjected to combined bending, torsion and shear. Experimental results were compared with the non-linear predictions. The comparison was judged by load displacement relationship, steel strain, angle of twist, failure load, crack pattern and mode of failure. Good agreement was observed between the predicted ultimate load and the experimentally measured loads. It was concluded that the present program can confidently be used to predict the behaviour and failure load of reinforced and partially prestressed concrete solid beams subjected to a combined load of bending, torsion and shear. 

End winding reactance computation using a 3D finite element program

1993 ◽  
Vol 29 (2) ◽  
pp. 1411-1414 ◽  
Author(s):  
A. Taieb Brahimi ◽  
A. Foggia ◽  
G. Meunier
Keyword(s):  
Finite Element ◽  
Finite Element Program ◽  
3D Finite Element ◽  
Element Program
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