Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): B. A. Bendtsen
    Date: 1964
    Source: Research note FPL no. 053. Madison, WI : USDA Forest Service, Forest Products Laboratory. 7, [7] pages.
    Publication Series: Research Note (RN)
    Station: Forest Products Laboratory
    PDF: View PDF  (401 KB)

    Description

    Evaluations of several mechanical and physical properties were conducted on specimens from five yagrumo hembra (Cecropia peltata) trees from Puerto Rico. With the exception of toughness and modulus of elasticity in both bending and compression parallel to grain, these specimens were lower in specific gravity and in strength properties than material reported previously. Although the specific gravity of the new material averaged about twice that of balsa, a wide range of specific gravity was evident and material at the lower part of the range could possibly be used as a substitute for balsa. Dense yagrumo hembra resembles North American black cottonwood in both specific gravity and mechanical properties. Total shrinkage from green to the ovendry condition was not excessive although the ratio of tangential to radial shrinkage appears about twice that characteristic of most species.

    Publication Notes

    • 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.

    Citation

    Bendtsen, B. A. 1964. Some strength and related properties of yagrumo hembra (Cecropia peltata) from Puerto Rico. Research note FPL no. 053. Madison, WI : USDA Forest Service, Forest Products Laboratory. 7, [7] pages.

    Keywords

    Mechanical properties, physical properties, toughness, modulus of elasticity, bending, compression, specific gravity, strength, shrinkage, Puerto Rico, tangential shrinkage, Cecropia peltata, yagrumo hembra, radial shrinkage

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page