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Evaluation of LS-DYNA Wood Material Model 143.

PB2006101279

Publication Date	2005
Personal Author	Murray, Y. D.; Reid, J. D.; Faller, R. K.; Bielenberg, B. W.
Page Count	156
Abstract	This report documents the evaluation of a wood material model that has been implemented into the dynamic finite element code LS-DYNA, beginning with version 970. This material model was developed specifically to predict the dynamic performance of wood components used in roadside safety structures when undergoing a collision by a motor vehicle. This model is applicable for all varieties of wood when appropriate material coefficients are inserted. Default material coefficients for two wood varieties, southern yellow pine and Douglas fir, are stored in the model and can be accessed for use. Calculations are performed with the finite element code LS-DYNA to evaluate the performance of wood material model 143 and to set default material properties for southern yellow pine and Douglas fir. Correlations with published test data include static bending and compression simulations of dry timbers, static bending of saturated posts, and dynamic simulation of saturated posts impacted by bogie vehicles. The companion manual to this report is: Manual for LS-DYNA Wood Material Model 143 (FHWA-HRT-04-097).
Keywords	Wood products Damage Lumber Modeling Rate effects Plasticity Static bending Saturated posts Compression simulations Douglas Fir Southern Yellow Pine LS-DYNA
Source Agency	Federal Highway Administration
Corporate Authors	Aptek, Inc., Colorado Springs, CO.; Nebraska Univ.-Lincoln. Midwest Roadside Safety Facility.; John A. Volpe National Transportation Systems Center, Cambridge, MA.
Supplemental Notes	Prepared in cooperation with Nebraska Univ.-Lincoln. Midwest Roadside Safety Facility. Sponsored by John A. Volpe National Transportation Systems Center, Cambridge, MA.
Document Type	Technical Report
Title Note	Final rept. Sep 1998-Sep 2002.
NTIS Issue Number	200607
Contract Number	DTFH61-98-C-00071

Evaluation of LS-DYNA Wood Material Model 143.

Evaluation of LS-DYNA Wood Material Model 143.
PB2006101279

Publication Date	2005
Personal Author	Murray, Y. D.; Reid, J. D.; Faller, R. K.; Bielenberg, B. W.
Page Count	156
Abstract	This report documents the evaluation of a wood material model that has been implemented into the dynamic finite element code LS-DYNA, beginning with version 970. This material model was developed specifically to predict the dynamic performance of wood components used in roadside safety structures when undergoing a collision by a motor vehicle. This model is applicable for all varieties of wood when appropriate material coefficients are inserted. Default material coefficients for two wood varieties, southern yellow pine and Douglas fir, are stored in the model and can be accessed for use. Calculations are performed with the finite element code LS-DYNA to evaluate the performance of wood material model 143 and to set default material properties for southern yellow pine and Douglas fir. Correlations with published test data include static bending and compression simulations of dry timbers, static bending of saturated posts, and dynamic simulation of saturated posts impacted by bogie vehicles. The companion manual to this report is: Manual for LS-DYNA Wood Material Model 143 (FHWA-HRT-04-097).
Keywords	Wood products Damage Lumber Modeling Rate effects Plasticity Static bending Saturated posts Compression simulations Douglas Fir Southern Yellow Pine LS-DYNA
Source Agency	Federal Highway Administration
Corporate Authors	Aptek, Inc., Colorado Springs, CO.; Nebraska Univ.-Lincoln. Midwest Roadside Safety Facility.; John A. Volpe National Transportation Systems Center, Cambridge, MA.
Supplemental Notes	Prepared in cooperation with Nebraska Univ.-Lincoln. Midwest Roadside Safety Facility. Sponsored by John A. Volpe National Transportation Systems Center, Cambridge, MA.
Document Type	Technical Report
Title Note	Final rept. Sep 1998-Sep 2002.
NTIS Issue Number	200607
Contract Number	DTFH61-98-C-00071