Highway Safety Studies

For the Federal Highway Administration (FHWA), APTEK has developed three advanced material models to be used in finite element structural response codes in support of highway crash safety. These models describe the non-linear response of concrete, soil and wood under complex structural loading conditions typical of vehicle impacts of guard-rails. These three models are now available for commercial use using LS-DYNA, a two and three dimensional finite element code sold commercially by Livermore Software Technology Corporation. The FHWA studies by APTEK also produced the Mixed Mode Constitutive Driver (MMCD) that is offered commercially by APTEK. MMCD provides the structural analyst with an automated tool to rapidly select material model parameter values based on mechanical test results. The code is described in detail in the Software/ MMCD section of this web site.

 

Related Software

• Mixed Mode Constitutive Driver (MMCD)

Related Models

• Concrete Model 159 called MAT_CSCM for Continuous Surface Cap Model.
  • Concrete Material Model 159 Users Manual
• Soil Model 147 called MAT_FHWA_SOIL.
• Wood Model 143 called MAT_WOOD.