@article{ref1,
title="Energy loss in vehicle to vehicle oblique impact",
journal="International journal of impact engineering",
year="2009",
author="Vangi, Dario",
volume="36",
number="3",
pages="512-521",
abstract="Since the seventies, many methodologies have been developed for estimating from energy loss the delta V produced in a vehicle to vehicle impact. Normal energy loss, is calculated by a discrete number of residual crush measurements in the direction parallel to the vehicle's axis, using the stiffness coefficients. In the case of oblique impact, a correction factor is applied to the normal energy loss to determine energy loss in the impulse direction. In this paper the concept of principal direction of deformation is introduced, presenting a new method for estimating energy loss in vehicle to vehicle collision, starting from a discrete number of crush measurements, which are, however, performed considering the effective displacement of the points during the crush. This novel approach, in addition to providing a more rigorous model of the physical phenomena, leads to improvement in the results: with the new approach, the mean error committed in estimating energy loss is about 10%, as compared to the 20% of the previous methodology.<p />",
language="",
issn="0734-743X",
doi="10.1016/j.ijimpeng.2008.09.001",
url="http://dx.doi.org/10.1016/j.ijimpeng.2008.09.001"
}