Download or read book Adjusting the Static Strength of Lumber for Changes in Moisture Content written by David W. Green and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the environmental factors which affect the mechanical properties of wood, one of the most important is moisture content. The development of standardized procedures for adjusting lumber strength for changes in moisture content is reviewed. Historically, the adjustment procedures for flexural properties in ASTM standard D 245-74 are shown to have been based on tests of lumber in structural sizes, with the magnitude of the adjustment being dependent upon the thickness and apparent strength of the piece. It is indicated that current adjustment procedures are based on mean strength properties that, when compared to tabulated average strength properties obtained from tests of full size lumber, were considered to be conservative for most species. A review of recent research results indicates that the magnitude of the seasoning adjustment for tensile and flexural strength of lumber is dependent upon the initial strength of the piece in the green condition. The need for an analytical model for describing the moisture content-strength relationship is stressed. Obstacles to the establishment of an effective model are discussed. Recommendations for future research in order to some of these obstacles are given. (Author).

Download or read book Evolution of Standardized Procedures for Adjusting Lumber Properties for Change in Moisture Content written by David W. Green and published by . This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper documents the development of procedures in American Society for Testing and Materials standards for adjusting the allowable properties of lumber for changes in moisture content. The paper discusses the historical context of efforts to establish allowable properties on a consensus basis, beginning in the 19th century. Where possible, the reasons for proposed changes in the standards are presented. The goal of this work is to foster a better understanding of how current standards have evolved and to promote reconciliation of conflicting property assignment procedures between current standards.

Download or read book Evolution of Standardized Procedures for Adjusting Lumber Properties for Change in Moisture Content written by David W. Green and published by . This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer Programs for Adjusting the Mechanical Properties of 2 inch Dimension Lumber for Changes in Moisture Content written by James William Evans and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How the Environment Affects Lumber Design written by and published by . This book was released on 1982 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Moisture Content and Tensile Strength of Douglas Fir Dimension Lumber written by David William Green and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of Moisture Content on the Flexural Properties of Southern Pine Dimension Lumber written by T. E. McLain and published by . This book was released on 1984 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of Moisture Content on the Flexural Properties of Douglas Fir Dimension Lumber written by and published by . This book was released on 1986 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Moisture Content and the Properties of Clear Southern Pine written by David William Green and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strength moisture Relations for Wood written by Thomas Randall Carson Wilson and published by . This book was released on 1932 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Forest Products Laboratory Wood Products Production Index written by James L. Howard and published by . This book was released on 1986 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper FPL RP written by and published by . This book was released on 1986 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Moisture Content on the Tensile Strength of Southern Pine Lumber written by Bambang Suryoatmono and published by . This book was released on 1994 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper FPL written by and published by . This book was released on 1985 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strength and Stiffness of Light frame Sloped Trusses written by Ronald W. Wolfe and published by . This book was released on 1986 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Long term Load Performance of Hardboard I beams written by J. Dobbin McNatt and published by . This book was released on 1983 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stiffness and Strength of Uniformly Loaded Floors with In grade Lumber written by M. D. Vanderbilt and published by . This book was released on 1983 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: