Study on the axial crush behaviors and characteristics of thin square tubes with openings at corners

Abstract

As energy-absorbing structural elements in railway and other, this paper proposes 'square tubes with openings at corners', which can control maximum load and displacement independently. In order to elucidate axial crush behaviors and characteristics, we carried out static compression tests and FEA, and discussion the way to improve energy-absorbing efficiency of these structural elements. Further, dynamic crash behaviors were simulated with dynamic analysis of FEA.