Dear All, for some time I am wondering by not getting the proper answer about what actually bottoming out effect by crash tests of passanger cars means. If anyone is able to answer, his/her help would be greatfully acknowledged.
Some four-wheel-drive recreational vehicles have relatively stiff front structures. This can result in a very high deceleration of the passenger compartment and high loads on the occupants. A stiff front structure can also place excessive demands on the deformable barrier, causing the barrier to bottom out early in the crash sequence.
From the context, it applies to the deformable barrier. "Bottom out" in this context means that all the designed-for deformation is completed. Similar phrases might be "full stroke", "fully distorted", "collapsed", etc. "Bottom out" is poor choice of words, IMO. It is derived from the phenomenon in suspensions, described by Jeff Finlayson.
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