An experimental and numerical scrutiny of crashworthiness variables for square column with V-notch and groove initiators under quasi-static loading

TLDR: In this paper, the axial quasi-static axial loading response and crashworthiness characteristics of empty hollow tubes, empty hollow tube with V-notch and empty hollow tubular with horizontal groove have been investigated through experimental and numerical simulations.

Abstract: Crashworthiness parameters like internal energy absorption and crush force efficiency are the key constants in evaluating the component crashworthiness and its safety. In the design of automotive structures for crashworthiness, there is an immense requirement for null strain submodules that provide a rigid room of survival area for the occupants and deformable submodules which can dematerialize the kinetic energy effectively. The front crash box of an automotive car is one of the most important deformable components which dissipate kinetic energy while frontal crash, which is the most persistent crash situation affects the entire automotive structural behavior. In this research, quasi-static axial loading response and crashworthiness characteristics of empty hollow tube, empty hollow tube with V-notch and empty hollow tube with horizontal groove have been investigated through experimental and numerical simulations. The axial quasi-static loading was executed at a couple of feed rates to evaluate t...