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Introduction to Finite Element Analysis

Anytime
Finite Element Analysis (FEA) is a computer-aided engineering (CAE) tool used to analyze how a design reacts under real-world conditions. ...This introduction to FEA will expose you to key concepts in FEA and give an overview of the FEA process, including the steps needed to conduct FEA, finite element types and orders, common assumptions that lead to serious errors in results, and areas you should be concerned with when discretizing a model.
Technical Paper

Effects of Mesh Density on Finite Element Analysis

2013-04-08
2013-01-1375
Static, modal, and impact analysis are involved in this study to discuss the effects of element size in finite element analysis....In finite element analysis, mesh density is a critical issue which closely relates to the accuracy of the finite element models while directly determines their complexity level. ...In finite element analysis, mesh density is a critical issue which closely relates to the accuracy of the finite element models while directly determines their complexity level. This paper presents a systematic study on finding the effects of mesh density on the accuracy of numerical analysis results, based on which brief guidelines of choosing the best mesh strategy in finite element modeling are provided.
Technical Paper

Computer Size and Finite Element Analysis

1983-02-01
830807
Application of the finite element method to engineering analysis began to propagate in the 1960's, using large mainframe computers as the vehicle for calculation. ...Current microcomputers may offer yet another approach to finite element analysis and computer accessibility....Introduction of the minicomputers during the 1970's offered an alternative approach for performing such analysis, and an alternative approach for locating the computer itself. Current microcomputers may offer yet another approach to finite element analysis and computer accessibility.
Technical Paper

Finite Element Analysis of a Carrier Frame

1976-02-01
760640
With the development of the computer and finite element analysis, the designer now has a tool to analyze the frame in detail and determine the potential areas of high stress before fabrication. ...This paper describes such a finite element model of the carrier frame of a rubber-tired mobile crane and how its analysis compares with actual test results. ...In the past, the analysis of large, complicated steel frames has been extremely difficult, if not impossible. With the development of the computer and finite element analysis, the designer now has a tool to analyze the frame in detail and determine the potential areas of high stress before fabrication.
Technical Paper

Finite Element Analysis Considering Material Porosity

2011-10-04
2011-36-0136
The application of finite element method (FEM) is widespread used to structural analysis. However the prescription or the consideration of a porous material parameter is still challenging. ...The goal is evaluate the structural behavior considering prescription of material porosity for 03 (three) loading conditions: analysis of natural frequencies extraction; analysis for concentrated load; analysis for inertial loading. ...Thus, this work proposes a methodology applied to the finite element method considering a value of porosity. The goal is evaluate the structural behavior considering prescription of material porosity for 03 (three) loading conditions: analysis of natural frequencies extraction; analysis for concentrated load; analysis for inertial loading.
Technical Paper

Finite Element Analysis, an Automobile Engineer's Tool

1974-02-01
740338
The finite element method as a modern technique for the automobile engineer will become fully effective provided that all its possibilities and requirements are taken into account. ...As a basic prerequisite for such a development, the importance of computer analysis, experimentation and mechanical design are illustrated and expectations with regard to finite element programming systems are shown, coupled with explanations covering the verification of the finite element method and its qualified use as an absolutely necessary prerequisite for success. ...As a basic prerequisite for such a development, the importance of computer analysis, experimentation and mechanical design are illustrated and expectations with regard to finite element programming systems are shown, coupled with explanations covering the verification of the finite element method and its qualified use as an absolutely necessary prerequisite for success.
Technical Paper

Modelling Rivets in the Finite Element Analysis

2007-04-16
2007-01-1362
Despite its simplicity, the rivet presents a local stiffness that is not easy to properly model within a large finite element analysis. However, precision in the local stiffness evaluation is essential to perform any structural analysis when several rivet are applied in a joint structure. ...In the present paper a new rivet element is introduced, able to precisely evaluate both local and overall stiffness of riveted joints; this finite element can be applied when dealing with 3D riveted shell structures. The modelling approach is similar to that, developed also by the author for spot welds. ...The result is appealing: a rivet finite element that combines the precision in the simulation together with a very limited number of d.o.f.'
Technical Paper

A Finite Element Analysis of Truck Wheels

1987-11-08
871264
Establishing the mathematical model to simulate the dynamic cornering fatigue test device of the wheel for the finite element analysis of the truck wheel, the paper has computed conveniently the maximum tangential strain value along the edge of the disc hand hole from the finite element results with two load planes when the wheel is under the rotating bending moment. ...Establishing the mathematical model to simulate the dynamic cornering fatigue test device of the wheel for the finite element analysis of the truck wheel, the paper has computed conveniently the maximum tangential strain value along the edge of the disc hand hole from the finite element results with two load planes when the wheel is under the rotating bending moment.
Technical Paper

Finite Element Analysis of Diffuse Axonal Injury

1990-02-01
900547
The present study makes use of the finite element method to refine the analytical and physical models to study DAI using a two-dimensional coronal brain section. ...The present study makes use of the finite element method to refine the analytical and physical models to study DAI using a two-dimensional coronal brain section. The finite element model is first verified by comparison with documented physical model experiments, then used to study the effects of (inertial) loading magnitude and duration on the levels of shear strain (which produce DAI).
Technical Paper

Finite Element Analysis of an Aluminum Damper

1986-09-08
861295
This paper presents the finite element modelling used in the development of this aluminum damper without going Into the actual numerical values used or obtained in the analysis. ...This paper presents the finite element modelling used in the development of this aluminum damper without going Into the actual numerical values used or obtained in the analysis.
Journal Article

Hybrid Finite Element Analysis of a Rotorcraft

2013-05-13
2013-01-1995
The Hybrid FEA method is based on combining conventional Finite Element Analysis (FEA) with Energy Finite Element Analysis (EFEA) for mid-frequency computations. ...The excitation is considered to be applied on the conventional FEA model and the vibration analysis is conducted. The power flow through the dynamic impedance elements is computed and applied as excitation to the EFEA model of the flexible panels. ...The EFEA analysis computes the vibration of the flexible panels. Gearbox excitation is an important contributor to the vibration induced in the fuselage of a helicopter.
Technical Paper

Nonlinearities and the Finite Element Analysis of Plastic Materials

1988-02-01
880030
The paper discusses nonlinear finite element analysis in the context of plastics manufacturing and in-service loading of plastic components. ...Numerical analysis of manufacturing processes and of plastic components under load must account for these nonlinear effects.
Technical Paper

The Finite Element Analysis and Optimization on a Special Vehicle

2015-04-14
2015-01-0473
In this paper, the author builds a finite element model of the front frame and analyses its modal. According to the modal analysis results, the fourth modal frequency is close to the working frequency of the crusher. ...In the finite element model, the front frame has been divided into a number of components of shell elements.
Technical Paper

Finite Element Analysis of Door Closing Effort

2013-04-08
2013-01-1398
To predict the door closing effort by the simulation method during the design phase, a finite element analysis model is established. The compression load deflection behavior of seals is converted to the parameters of constitutive model of seals by the parameters identification method.
Technical Paper

Finite Element Analysis of a Valve Stem Seal

1998-02-23
980580
As a precursor to a full leakage study on Valve Stem Seals (VSS), Finite Element (FE) Analyses were carried out using ANSYS 5.2. Two dimensional axisymmetric static models were developed, with the Mooney-Rivlin strain energy function used to describe the nonlinear behaviour of the rubber. ...For each analysis, elasto-hydrodynamic lubrication was assumed during valve stem reciprocation. Each model featured an alteration to a ‘standard’ design of valve stem seal (known to give excellent performance over its life cycle), the effect of these differences was then investigated.
Technical Paper

Finite Element Analysis of Hydraulic Hose Couplings

1986-04-22
860818
This paper presents a finite element methodology and algorithm for predicting the deformation and stress response of high pressure hose couplings and components during the fabrication process and during service loading conditions.
Technical Paper

The Finite Element Analysis of Axle Nut Crimping

2017-03-28
2017-01-1323
A dynamic finite element methodology which adopts the Arbitrary Lagrangian-Eulerian formulation from ABAQUS explicit solver is developed to simulate the complete crimping process. ...Recommendations from the analysis would serve as a foundation and guideline for the development of a reliable axle nut crimping process in automotive industry.
Technical Paper

Finite Element Analysis of Traumatic Subdural Hematoma

1987-11-01
872201
The combined effects of tangential and angular accelerations on bridging vein deformation, as determined at the lower levels of test severity from the finite element analysis, were used to estimate tolerance thresholds for subdural hematoma in the experiments. ...A two-dimensional finite element model of the head of a rhesus monkey was built to simulate the head acceleration experiments done by Gennarelli and his colleagues.
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