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Federal Highway Administration Research and Technology
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Publication Number: FHWA-HRT-04-096
Date: August 2005
Evaluation of LS-DYNA Wood Material Model 143
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9 - User's Introduction
The calculations and conclusions of chapters 9 through 16 were conducted and documented by the user.
Several finite element models were developed throughout the validation effort, including single-element models for tension and compression, a cube crushing model, several static wood post testing models, and a dynamic wood post testing model.
As a first step in the simulation validation effort, the user successfully reproduced results obtained by the developer on the user’s computers. Next, the user applied the new wood material model to several different methods not attempted by the developer. Several areas of concern were revealed at this stage. These concerns are documented throughout chapters 9 through 16.
The majority of the simulations reported in this document were performed using LS DYNA, version 970, revision 1812, compiled on June 7, 2002, on both PC Windows and SGI® UNIX-based machines. All areas of concern listed in this report were tested on this latest version of the wood model.
Topics: research, safety, infrastructure, materials, construction safety
Keywords: research, safety, infrastructure, materials, wood, southern yellow pine, Douglas fir, LS DYNA, modeling and simulation, damage, rate effects, plasticity
TRT Terms: Roads--Guard fences--Mathematical models--Evaluation, Wooden fences--Mathematical models--Evaluation, Wood structures, Posts, Dynamic models, Finite element method, Simulation