A study of crashworthiness characteristic of woven kenaf fabric reinforced composites tube
In recent year, rapid growth of manufacturing sector cause adverse effect to the environment due to the use of conventional material. This situation draws the attention of researcher to study on natural materials as an alternative material in manufacturing industry. In this research, a study has bee...
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| Format: | Thesis |
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2014
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| Online Access: | http://eprints.uthm.edu.my/5660/ http://eprints.uthm.edu.my/5660/1/TUAN_MOHD_HAFEEZ_TUAN_IBRAHIM.pdf |
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| Summary: | In recent year, rapid growth of manufacturing sector cause adverse effect to the environment due to the use of conventional material. This situation draws the attention of researcher to study on natural materials as an alternative material in manufacturing industry. In this research, a study has been conducted on capability of kenaf fabric reinforced polyester (KFRP) as an energy absorber. There are 9 different parameter of KFRP specimen with geometrical ratio (R) of length to diameter (L/D) 1, 1.5 and 2 with 3 layers (N) of kenaf woven. Compression test has conducted to the specimens in order to identify the peak load and crush force efficiency as crashworthiness characteristic. The result shown that increasing number of plies (N) is linearly correlated with increasing of peak load. Specimen R2-N3 and R1.5-N2 shows the highest peak load, 47.53kN and crush force efficiency, 0.79 respectively.
Besides that, specimens were also studied on energy absorption capability and failure mode based on graph and observation. It shows that, higher ratio of geometric (R) and layers of woven kenaf effect increasing the capability of the specimens to absorb energy. Specimens R2-N3 shows the highest absorbed energy with 4357.04 J. For failure mode observation, all specimens show the same mood failure which is crushed in a progressive manner. In conclusion, the number of plies and geometric ratio affects the capability of a specimen to absorb energy. |
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