Skip to Main Content
Effect of forming stresses on the strength of curved laminated beams of loblolly pineAuthor(s): George E. Woodson; Frederick F. Wangaard
Source: Forest Products Journal, Vol. 19(3): 47-58
Publication Series: Miscellaneous Publication
PDF: View PDF (2.75 MB)
DescriptionCurvature-stress factors reflecting the effect of forming stresses in producing curved beams of thin vertical-grain laminations of clear wood have been determined for loblolly pine. Strength retention of curved beams decreases with increasing severity of curvature but not to the degree suggested by the Wilson equation commonly used in design. Curved beams loaded on the convex face (stresses reverses) are stronger than beams loaded on the concave face (stresses additive) and curvature-stress factors applicable to these two conditions are recommended. wood quality characteristics favoring higher retention of curved beam strength are suggested.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationWoodson, George E.; Wangaard, Frederick F. 1969. Effect of forming stresses on the strength of curved laminated beams of loblolly pine. Forest Products Journal, Vol. 19(3): 47-58
- Bending analyses for 3D engineered structural panels made from laminated paper and carbon fabric
- Shear design of wood beams : state of the art
- Mechanical properties of individual southern pine fibers. Part I. Determination and variability of stress-strain curves with respect to tree height and juvenility
XML: View XML