Skip to Main Content
Creep and creep-rupture behaviour of wood-based structural panelsAuthor(s): Theodore L. Laufenberg; L. C. Palka; J. Dobbin McNatt
Source: (Research paper FPL ; RP-574):20 p. : ill. ; 28 cm.
Publication Series: Research Paper (RP)
Station: Forest Products Laboratory
PDF: View PDF (438 KB)
DescriptionThis paper summarizes a cooperative research program between the USDA Forest Service, Forest Products Laboratory (FPL), in Madison, Wisconsin, and Forintek Canada Corp. in Vancouver, British Columbia, Canada. This research program provided detailed creep1rupture and some creep information for composite panel products. Commercially produced plywood, oriented strandboard (OSB), and minimally aligned waferboard were tested to identify nine mills (three for each product) that produced panels with a range of flexural creep performance. The three plywood, three OSB, and three waferboard products (nine products total, one from each mill) were then tested to provide information on their duration of load (DOL) and creep performance. Large panel specimens were subjected to both rampload and constant-load tests under one environmental condition. The constant- load results provided conventional or deterministic DOL factors that compared favorably with National Design Specifications recommended for adjusting lumber design strength properties under dry service conditions. Ramp-load specimen data generally indicated a lower rate of damage accumulation than did data for constant-load specimens. Creep tests at two low constant-load levels were also performed on large specimens under three environmental conditions for a 6-month period. Those results suggested that present deterministic creep factors in panel design practice might be acceptable for plywood under the influence of relatively severe conditions, for OSB in moderate conditions, and for waferboard in dry service environmental conditions.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLaufenberg, Theodore L.; Palka, L. C.; McNatt, J. Dobbin. Creep and creep-rupture behaviour of wood-based structural panels. (Research paper FPL ; RP-574):20 p. : ill. ; 28 cm.
KeywordsCreep strength, Plywood, Particleboard, Panels, OSB, Oriented strandboard
- Creep behavior of flakeboards made with a mixture of southern species
- Effect of resin variables on the creep behavior of high density hardwood composite panels
- Creep behavior of sweetgum OSB: effect of load level and relative humidity
XML: View XML