Design of Bolted Connection in Composite Beams for Moment Resistance

H.K. Cho; John M. Considine; Douglas R. Rammer; R.E. Rowlands

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Design of Bolted Connection in Composite Beams for Moment Resistance

Informally Refereed

Authors:

H.K. Cho, John M. Considine, Douglas R. Rammer, R.E. Rowlands

Year:

2018

Type:

Paper

Station:

Forest Products Laboratory

Source:

Conference Proceedings of the Society for Experimental Mechanics Series

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Abstract

Bolted/pinned joints in orthotropic composite materials have received considerable attention over the years. Bolt fastening is one of the most commonly used methods to connect wood to wood and/or wood to steel, etc. Stresses at such connections can be the “Achilles’ heel”, causing structural failures. Notwithstanding the challenges in stress analyzing bolted joints, their advantages and widespread use motivate developing ability to optimize their design. Acknowledging the above, a finite element code is combined here with a screening optimization algorithm to optimize a bolt-hole pattern used to connect orthotropic wood members. A loaded wood beam having four connecting bolt holes at one end is optimized. The ultimate goal is to find optimal hole pattern and/or individual hole position under given load and displacement boundary conditions.

Keywords

Optimization, orthotropic material, wood, hole, bolted joints, FEA

Citation

Cho, H.K.; Considine, J.M.; Rammer, D.R.; Rowlands, R.E. 2018. Chapter 1: Design of bolted connection in composite beams for moment resistance. In: P. Zavattieri et al. (eds.), Mechanics of Biological Systems, Materials and other topics in Experimental and Applied Mechanics, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series, DOI 10.1007/978-3-319-63552-1_1.