Matharu, Navroop S. and Mottram, J. Toby (2013) Laterally unrestrained bearing strength of hot-wet conditioned pultruded FRP material. In: 6th International Conference for Advanced Composites in Construction (ACIC 2013), Queen’s University of Belfast, 10-12 September 2013. Published in: Proceedings 6th International Conference on Advanced Composites in Construction (ACIC 2013) pp. 241-251.

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Abstract

Presented in this paper are test results of a study pertaining to the reduction in bearing strength due to the effect of hot-wet conditioning on specimens cut from a polyester matrix based pultruded FRP structural shape. A total of 100 coupons (for 20 batches of five) were immersed in distilled water for three and six months at a constant temperature of 40°C. Subsequently, they were load tested using stainless steel ‘pins’ of M10 and M20 sizes with material orientations of 0o, 45o and 90o
to the direction of pultrusion. Furthermore, this test series considered the effect of loading with and without bolt thread in the bearing zone. Testing employed a non-standard set-up that accommodates smaller test coupons, allowing material to be sourced from the web
and flange of a 254×254×9.53 mm wide flange shape. An evaluation of the salient results provides characteristic bearing strength values (in accordance with Annex D of EN1990) and comparisons are drawn between equivalent strengths for non-aged (zero months) material from a previous test series. The degree of strength reduction is found to be influenced by both the ‘pin’ size and type, and observations are drawn towards the safe and reliable design of bolted connections.

Item Type:	Conference Item (Paper)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Composite materials, Composite materials -- Mathematical models , Engineering design
Journal or Publication Title:	Proceedings 6th International Conference on Advanced Composites in Construction (ACIC 2013)
Publisher:	NetComposites Ltd.
Official Date:	September 2013
Dates:	Date Event September 2013 UNSPECIFIED
Page Range:	pp. 241-251
Status:	Peer Reviewed
Date of first compliant deposit:	26 December 2015
Date of first compliant Open Access:	26 December 2015
Funder:	Engineering and Physical Sciences Research Council (EPSRC)
Grant number:	EP/H042628 (EPSRC)
Conference Paper Type:	Paper
Title of Event:	6th International Conference for Advanced Composites in Construction (ACIC 2013)
Type of Event:	Conference
Location of Event:	Queen’s University of Belfast
Date(s) of Event:	10-12 September 2013

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