The Energy Absorption Capacity of Foam-filled Carbon Fiber Tube Subjected to Axial Impact

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Published: May 25, 2020
Keywords:
Energy Absorption Crashworthiness Polyurethane Foam

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Nirut Onsalung
Department of Mechanical Engineering, Faculty of Industry and Technology, Rajamangala University of Technology Isan Sakon Nakhon Campus, Sakon Nakhon
Mana Wichangarm
Department of Mechanical Engineering, Faculty of Engineering, Ubon Ratchathani University, Ubon Ratchathani

Abstract

This research is an experimental study to investigate the energy absorption capacity of carbon fiber tube under axial impact test. The specimen consist of 6 patterns which fabricated by using vacuum infusion method. The entire specimen filled with polyurethane foam at density 50, 100 and 150 kg/m3. The specimens are tested by drop hammer testing machine. The speed of drop head hammer to impact surface specimen is 6.76 m/s. The results found that the collapse mode are occurring into 2 patterns i.e. type 1 the specimen are broken out and folds diverge out which mostly found in the ply angle of carbon fiber [0/90]. Type 2 the collapse folds move to inwards and then the folds are collapse outwards and broken which found that the ply angle of specimen [45/-45]. Considering the influence of foam density, the result shown that while the density of foam-filled increase the maximum load and the mean load are higher while the energy absorption are tend to decrease. In this reason, due to the increased of strength of the specimen and the specimen are reduced collapse displacement.

Article Details

Issue
Vol. 30 No. 4 (2020): October-December, 2020
Section
Engineering Research Articles

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