The crashworthiness analyses are carried out for the rectangular section which have an important role of absorbing the impact energy during fromtal crash. The treatments of hourglass controls and various contact types are addressed. Two hourglass cont...
The crashworthiness analyses are carried out for the rectangular section which have an important role of absorbing the impact energy during fromtal crash. The treatments of hourglass controls and various contact types are addressed. Two hourglass control schemes, viscous and elastic, and three types of contacts, sliding with separation, self-contact and one way algorithm, are imtroduced and examined in crash analyses of frame. And the effect of initial imperfection is investigated and verified by experiment.