A Validation Study for the Force Balance Method in Determination of Stiffness Coefficients

Long, Timothy J.

doi:10.4271/1999-01-0079

Cited by 8 publications

(1 citation statement)

References 9 publications

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“…Following that procedure, the authors analyzed Campbell's model [1,2], which is adopted in Crash 3 code (NHTSA) [3], with a specific attention to the energy evaluation methodology [6], to the vehicle impact characteristic parameters [7,8] and obviously to the subsequent validation analysis [9].…”

Section: Macmillan's Modelmentioning

confidence: 99%

Numerical Characterization and Validation of Vehicle Collisions

Grimaldi

Soprano

Caputo

2008

KEM

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In the recent years the road accident analysis has been one of the main fields of research for automotive engineering, because of the heavy costs which Europe has to sustain each year in terms of injuries, fatalities and related costs. In this paper, starting from an impulsive model available in literature, a numerical characterization of vehicle collisions and deformation process is proposed and validated, identifying the main parameters which describe the vehicle impact behaviour. The study, conducted by using both empirical and numerical data (simulated trough Ls- Dyna), analyses the impact process by considering several situations, with different severity and geometry of impact; furthermore, with reference to the main parameters which describe the vehicle behaviour in the impact, the authors present a wide analysis, classified according to the severity of impact and to the different parts of the vehicle structure which absorb the impact energy.

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Section: Macmillan's Modelmentioning

confidence: 99%

Numerical Characterization and Validation of Vehicle Collisions

Grimaldi

Soprano

Caputo

2008

KEM

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Introduction of the Barrier Equivalent Time (BET) Methodology in the Analysis of Delta-V

Long¹

2000

SAE Technical Paper Series

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Non-Linear Damage Analysis in Accident Reconstruction

Woolley¹

2001

SAE Technical Paper Series

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Frontal, side, rear, pole and offset car to car data sets are examined using familiar damage analysis models: constant stiffness, bilinear stiffness, and force saturation. In addition to these, a non-linear power-law formulation is introduced and compared to the others. The power-law provides a nonlinear stiffness coefficient that transitions between a constant force model and constant stiffness model as the power goes from 0 to 1. It also provides a continuous, single valued function that is easily integrated and used in the analysis. Power-law non-linearity can be used to smoothly fit low through high crush data.

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A Validation Study for the Force Balance Method in Determination of Stiffness Coefficients

Cited by 8 publications

References 9 publications

Numerical Characterization and Validation of Vehicle Collisions

Numerical Characterization and Validation of Vehicle Collisions

Introduction of the Barrier Equivalent Time (BET) Methodology in the Analysis of Delta-V

Non-Linear Damage Analysis in Accident Reconstruction

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