Behavior of fiber-reinforced composite beams with mechanical joints

Manalo, Allan and Mutsuyoshi, Hiroshi (2012) Behavior of fiber-reinforced composite beams with mechanical joints. Journal of Composite Materials, 46 (4). pp. 483-496. ISSN 0021-9983

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Abstract

The fundamental behavior of the fibre reinforced composite beams with mechanical joints was examined using coupon and full-scale specimens. The effect of applied bolt torque, the contribution of adhesive bonding, and the number and configuration of bolts on the load capacity and failure mode of the double-lap bolted joints were investigated. The results showed that at different levels of applied bolt torque (10, 15, 20 and 25 N-m), little friction resistance developed. A slight increase on the load capacity was however observed with increasing tightening torque. On the other hand, the mechanical joints using bolts accompanied by adhesive bonding provided resistance against slipping. The flexural behavior of full-scale fibre composite beams with joints at midspan connected with bolts alone and a combination of bolts and epoxy was further examined. The beams connected using bolts and epoxy exhibited the same strength and stiffness as the beams without joints while using bolts alone resulted to a beam with only 65% of the stiffness of those without joints. This showed that the combination of bolts and epoxy adhesives could provide a reliable connection method for fibre reinforced composite beams.

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Item Type:	Article (Commonwealth Reporting Category C)
Refereed:	Yes
Item Status:	Live Archive
Additional Information:	Accepted version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre:	Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited:	22 Apr 2012 10:41
Last Modified:	18 Jul 2014 03:03
Uncontrolled Keywords:	composite beams; mechanical joints; fibre composites; bolted joints; bonded joints; connections
Fields of Research :	09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective:	E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
Identification Number or DOI:	10.1177/0021998311418263
URI:	http://eprints.usq.edu.au/id/eprint/20545

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