Effect of Fiber Mat Density and Crushing Mechanism on the Energy Absorption Capacity of GFRP Crashworthy Tubes
Chethana K.Y1, M. G. Patil2, Y. S. Rammohan3
1Chethana K.Y, Department of Mechanical Engineering, Vemana Institute of Technology, Bangalore, India.
2M. G. Patil, Department of Mechanical Engineering, BMS College of Engineering, Bangalore, India.
3Y. S. Rammohan, Department of Mechanical Engineering BMS College of Engineering, Bangalore, India.
Manuscript received on 02 July 2019 | Revised Manuscript received on 16 July 2019 | Manuscript Published on 23 August 2019 | PP: 297-301 | Volume-8 Issue-9S3 August 2019 | Retrieval Number: I30550789S319/2019©BEIESP | DOI: 10.35940/ijitee.I3055.0789S319
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The aim of this study is to examine the effect of fiber mat’s density and deformation mechanism of tubes with and without die compression. In this study a new mode of deformation mechanism of density graded GFRP circular tube is examined when they are subjected to axial compression on to a die and without die to examine its energy absorbing capacity. Theoretical calculations were made to predict the crushing stress of different specimens. It is observed that increasing density of fiber increases energy absorption value but decreases the specific energy absorption and the die could trigger progressive crushing additionally decreasing peak load. Here the compressed tube wall is compelled to be deformed towards the end of compression die with a little range of bending curvature which was forced by the radius of the die at high crushing stress and the major part of the deformation takes place at a nearly constant load, which leads to high energy absorption capacity. Comparison between theoretical prediction values by derived equations and the experimental results shows good correlation.
Keywords: GFRP, Experimentation, Energy absorption, Theoretical Calculations
Scope of the Article: Civil and Environmental Engineering