Experimental and Theoretical Investigation of Combined Expansion Tube-Axial Splitting as Impact Energy Absorbers

Pratiknyo, Yuwono Budi and Setiawan, Rachman and Suweca, Wayan, I (2020) Experimental and Theoretical Investigation of Combined Expansion Tube-Axial Splitting as Impact Energy Absorbers. International Journal of Structural Stability and Dynamics, 20 (205002). ISSN 1793-6764

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Abstract

In this study, the combination of an expansion tube and a deformable rigid tube with axial splitting is developed as a new mechanism for use as an impact energy absorber. The impact absorbing structure consists of two circular tube forming dies, with each die allowing the tube to expand and to split. The latter is used to remove away radially the debris after expansion and splitting, so that the absorption process can continue without being obstructed by the debris itself. This paper presents the experimental and theoretical investigation of the combined expansion tube-axial splitting as an impact energy absorber. The experiment by the laboratory scale impact testing has been done with a variation of the parameters such as pipe thickness (t), angle of splitter (α), comparison of dies upgrading diameter (D2) and inner pipe diameter (D1) (D2/D1). The theoretical investigation is carried out with a literature study related to the mechanics of material and theoretical studies from previous research studies. The final result of this paper, i.e. a new formula proposed to calculate the mean load, is reflective of the study of a combined expansion tube with axial splitting. The difference between the results of analytical calculation and experiments is 10.13%. Keywords: Impact, energy absorber, expansion tube, axial splitting

Item Type:	Article
Uncontrolled Keywords:	Impact; energy absorber; expansion tube; axial splitting
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures
Divisions:	Faculty of Engineering > Department of Manufacturing Engineering
Depositing User:	Yuwono Budi Pratiknyo 61132
Date Deposited:	29 Oct 2021 04:19
Last Modified:	18 Apr 2022 04:38
URI:	http://repository.ubaya.ac.id/id/eprint/40648

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