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Modeling the Effect of Nail Corrosion on the Lateral Strength of JointsAuthor(s): Samuel L. Zelinka; Douglas R. Rammer
Source: Forest Prod. J. Volume 62, Number 3: pp. 160–166; 2012.
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
PDF: Download Publication (351.69 KB)
DescriptionThis article describes a theoretical method of linking fastener corrosion in wood connections to potential reduction in lateral shear strength. It builds upon published quantitative data of corrosion rates of metals in contact with treated wood for several different wood preservatives. These corrosion rates are then combined with yield theory equations to calculate a loss in lateral capacity as a function of time. The calculations are straightforward and can be performed in a spreadsheet or simple computer program. They can accommodate time-dependent and moisture-dependent corrosion rates. The latter of these capabilities can easily be recognized as important, inasmuch as corrosion rates of fasteners are recognized as being dependent on moisture content of the wood in which they are embedded. The calculation method is dependent on corrosion rate, and the method is therefore limited by the lack of agreement in corrosion rates presented in the literature. Within these limitations, the article examines how different corrosion rates and changes in corrosion rates affect the mechanical properties and service life of nailed wood joints.
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CitationZelinka, Samuel L.; Rammer, Douglas R. 2012. Modeling the effect of nail corrosion on the lateral strength of joints. Forest Products Journal 62(3): 160–166.
Keywordscorrosion, yield theory, NDS, nails, preservative treated wood
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