Abstract
In an impact, a structure is rarely subjected to pure axially loading. Load endured by an axially loaded column has been analytically derived by previous researchers, whereas it is very limited works on predicting the obliquely loaded column performance. In this study, the force response curve of the obliquely loaded empty aluminum column is analyzed and compared to its axially loaded column. Theoretical formula to calculate the axial mean force has been applied to obliquely loaded column, and it has yields a largely deviated value. Thus, a modified equation to cater for obliquely loaded column has been proposed.
Highlights
The recent trend in automobile design is aimed at improving crash safety
Theoretical formula to calculate the axial mean force has been applied to obliquely loaded column, and it has yields a largely deviated value
Numerous research works has been presented on structure subjected to axial and bending [4,5,6,7], whereas a very limited study has been conducted on theoretical equation for oblique loading
Summary
The recent trend in automobile design is aimed at improving crash safety. Energy absorbing members have to absorb sufficient collision energy. Automotive structures are designed to sustain impact loading in diverse crash directions such as frontal, lateral and rear impact. The main energy absorber on the front side of automotive body is crash box and longitudinal members that commonly represented by column. The threat to passenger safety arouses the need for the crash test. Numerous research works has been presented on structure subjected to axial and bending [4,5,6,7], whereas a very limited study has been conducted on theoretical equation for oblique loading. This study will propose improvised axially loaded equation to predict the mean force of the obliquely loaded column based on simulation
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