Refinement of finite element analysis of automobile structures under crash loading

  • 3.97 MB
  • English
Dept. of Transportation, National Highway Traffic Safety Administration, for sale by the National Technical Information Service , Washington, Springfield, Va
Automobiles -- Crashworthiness, Finite element method -- Computer pro
StatementKim S. Yeung, R. E. Welch
SeriesDOT HS-803 466
ContributionsWelch, R. E., joint author, United States. National Highway Traffic Safety Administration
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL14944638M

Refinement of finite element analysis of automobile structures under crash loading. Washington: Dept. of Transportation, National Highway Traffic Safety Administration ; Springfield, Va.: For sale by the National Technical Information Service, refinement of finite element analysis of automobile structures under crash loading.

VOLUME II A finite element computer program for use in the static and dynamic analyses of vehicle structure, including sheet metal, in a crash environment was developed in this research : K S Yeung, R E Welch.

University Press of Virginia, Charlottesville, Virginia (). Winter, A.B. Pifko and H. Armen, Crash simulation of skin-frame structure using a finite element code. SAE paper (). Yeung and R. Welsh, Refinement of finite element analysis of automobile structures under crash loading.

by: Finite element analysis has been widely applied to the simulation of vehicle crash. Several research studies investigated how to develop a full vehicle model for crashworthiness analysis by Finite. nonlinear, transient dynamic finite element analysis using explicit time integration.

LS-DYNA is one of the most suitable to be used in performing numerical analysis of impact and crash problem. Vehicle crash is a highly nonlinear transient dynamics phenomenon. The purpose of a crash analysis is to see how the car will behave in a frontal or sideways collision.

Crashworthiness simulation is one typical area of application of Finite-Element Analysis (FEA). This is an area in which non-linear. Accurate stress responses are the basics for failure analysis of aerospace structures, but they still can be challenging in numerical simulations for dynamic systems.

This work exploits the stress mode shapes (SMSs) in local finite element (FE) refinement for the purpose of accurate dynamic stress estimation. The Finite Element Method for Solid and Structural Mechanics is the key text and reference for engineers, researchers and senior students dealing with the analysis and modeling of structures, from large civil engineering projects such as dams to aircraft structures and small engineered components.

This edition brings a thorough update and rearrangement of the book's content, including new. The present study provides an overview of modeling and discretization aspects in finite element analysis of thin‐walled structures.

Shell formulations based upon derivation from three‐dimensional continuum mechanics, the direct approach, and the degenerated solid concept are compared, highlighting conditions for their equivalence. Polyurethane foams are one of the most common auxetic structures regarding energy absorption enhancement.

Description Refinement of finite element analysis of automobile structures under crash loading EPUB

This present study evaluates the result reliability of two different numerical approaches, the H-method and the P-method, to obtain the best convergence solution. A polymeric re-entrant cell is created with a beam element and the results of the two different methods are compared.

The Finite Element Analysis (FEA) is the simulation of any given physical phenomenon using the numerical technique called Finite Element Method (FEM). Engineers use it to reduce the number of physical prototypes and experiments and optimize components in their design phase to develop better products, faster while saving on expenses.

A new non-planar interlocking element is designed in this study, which has a symmetrical geometry with curved upper and lower surfaces as well as six curved side surfaces for the interlocking purpose, as shown in Fig.

proposed non-planar interlocking element can be used to construct structures with curved shapes, such as the tubular structure shown in Fig. 3(d). 5 commandments of finite element modeling and analysis 1.

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Thou shalt use the simplest model (in terms of model complexity and scope, element type and mesh, etc.) that provides the information you are looking for.

Thou shalt verify the quality of the finite element mesh model both prior to the analysis and after results have been generated. In mathematics, the finite element method (FEM) is a numerical technique for finding approximate solutions to boundary value problems for partial differential equations.

Troubleshooting Finite-Element Modeling with Abaqus: With Application in Structural Engineering Analysis Raphael Jean Boulbes This book gives Abaqus users who make use of finite-element models in academic or practitioner-based research the in-depth program knowledge that allows them to debug a structural analysis model.

The need for nonlinear analysis has increased in recent years due to the need for - use of optimized structures - use of new materials - addressing safety-related issues of structures more rigorously The corresponding benefits can be most important.

Problems to be addressed by a non­ linear finite element analysis are found. 1Honda R&D Co., Ltd. Automobile R&D Center ABSTRACT The objective of this study was to investigate mechanisms of pedestrian pelvis loading due to impact from various vehicle front ends using finite element (FE) human and vehicle models.

Three types of vehicles were chosen to represent different loading patterns to the pelvis of a pedestrian. The structure of finite element methods. A finite element method is characterized by a variational formulation, a discretization strategy, one or more solution algorithms and post-processing procedures.

Examples of variational formulation are the Galerkin method, the. 2D and 3D finite element analysis software for electromagnetic field, thermal, structural: JSOL: Proprietary commercial software: Education pack available: Linux, Windows, Web browser: StressCheck: Finite element analysis software based on p-FEM with a focus on solid mechanics applications: ESRD, Inc.

Details Refinement of finite element analysis of automobile structures under crash loading EPUB

Proprietary. Energy Absorber (DEA) and tested under vertical and horizontal impact velocities of ft/sec and ft/sec, respectively. The objectives of the test were to evaluate the performance of the DEA concept under realistic crash conditions and to generate test data for validation of a system integrated finite element model.

In preparation for the. Fundamentals of Finite Element Analysis: Linear Finite Element Analysis is an ideal text for undergraduate and graduate students in civil, aerospace and mechanical engineering, finite element software vendors, as well as practicing engineers and anybody with an interest in linear finite element analysis.

Nonlinear Finite Elements for Continua and Structures Ted Belytschko, Wing Kam Liu, Brian Moran Northwestern University, Evanston, Illinois This book provides a comprehensive description of the major methodologies of nonlinear finite element analysis for solid mechanics, as applied to continua and s: Implicit and Explicit Finite Element Methods for Crash Safety Analysis Explicit method is commonly used in crashworthiness analysis due to its capability to solve highly non-linear problems without numerous iterations and convergence problems.

Explicit Finite-Element Analysis of T3/T Aluminum Material under Impact Loading for Airplane Engine Containment and Fragment Shielding Murat Buyuk ; Steve Kan ; and Matti J.

- Explore blair's board "Finite Element Analysis" on Pinterest. See more ideas about Finite element, Finite element analysis, Finite element method pins.

The analysis is based on a finite element method that includes the effects of heating, due to rapid plastic deformation of the material, on the material properties. Useful details of material deformation and thermal history and the final rivet and structure configuration and states of stress and strain are obtained.

9 Design Solutions to Improve CFRP Crash-Box Impact Efficiency for Racing Applications Simonetta Boria. Introduction Composite Structures for Crashworthy Applications Geometrical and Material Characterisation of the Impact Attenuator Experimental Test Finite Element Analysis and LS-DYNA "Nonlinear Finite Elements for Continua and Structures" written by Professor Belytschko is one of the best books on the subject of nonlinear finite element analysis.

The book has a striking balance between theory and practice. As an engineer and scientist, I find this book to be very helpful for both practicing engineers and researchers in the. - The term finite element was first coined by clough in In the early s, engineers used the method for approximate solutions of problems in stress analysis, fluid flow, heat transfer, and other areas.

- The first book on the FEM by Zienkiewicz and Chung was published in The example calculation above is a 2D Finite Element Analysis of a socket head cap screw being loaded to its breaking point and the resulting stress levels.

The FEA software used was John Hallquist's NIKE2D Finite Element Code. The number crunching took. Crash Test: Finite element analysis can produce realistic results to support engineers in understanding vehicle behavior under different crash scenarios.

Instead of running real-life conditions, it is more time-efficient and cost-effective to simulate car crashes using commercial software such as ANSYS.We are required to study and complete the lessons 4, 7, 11 provided in the book “Introduction to Finite Element Analysis using SolidWorks Simulation ”.

The results obtained are to be compared with analytical solutions plotted in MATLAB in order to explore the accuracy of the solutions in Solidworks. Seat structures, and any other interior items are allowed to deform under ultimate loads, however, not so much that the safe egress of the occupants is impeded.

Complying with this requirement is a little subjective in nature and probably depends on the acceptance of the DER or ODA Unit Member approving the test.