Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Relation Of Strength Of Wood To Duration Of Load full books in PDF, epub, and Kindle. Read online Relation Of Strength Of Wood To Duration Of Load ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Lyman W. Wood
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.3/5 (126 download)
Download or read book Relation of Strength of Wood to Duration of Load written by Lyman W. Wood and published by . This book was released on 1951 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lyman W. Wood
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (231 download)
Download or read book Relation of Strength of Wood to Duration of Load written by Lyman W. Wood and published by . This book was released on 1951 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. C. Gerhards
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.X/5 (4 download)
Download or read book Effect of Duration and Rate of Loading on Strength of Wood and Wood-based Materials written by C. C. Gerhards and published by . This book was released on 1977 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. C. Gerhards
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (319 download)
Download or read book Effect of Duration and Rate of Loading on Strength of Wood and Wood-based Materials written by C. C. Gerhards and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Borg Madsen
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (319 download)
Download or read book Time-strength Relationship for Lumber written by Borg Madsen and published by . This book was released on 1976 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles C. Gerhards
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (11 download)
Download or read book Effect and Duration and Rate of Loading on Strength of Wood and Wood-based Materials written by Charles C. Gerhards and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study reviews world literature on the strength-related effect of duration and rate of loading on wood and wood-based materials. Also, early developments are discussed which led to the currently used permament loading factor of 9/16. Published data on duration of load are reanalyzed and compared. The comparisons suggest that the effect of stress level on duration of stress for wood is greater for shear than for bending or compression. The comparisons also suggest that the stress level effect is greater in hardboard, particle board, and plywood than in solid wood. A similar comparison of loading rate effects suggests that strength is affected to a greater extent in green wood than in dry wood, particularly in bending. For dry wood, the effect of loading rate on strength is most pronounced in tension perpendicular to grain, followed by compression parallel to grain, bending, and shear. Results also suggest that loading rate in bending has a slightly greater effect on hardboard strength and a slightly lesser effect on particle board strength compared to strength of wood. The shortcomings of the present data on loading rate and duration are discussed. Suggestions are made for needed research. (Author).
Author : American Society of Civil Engineers. Task Committee on Load and Resistance Factor Design for Engineered Wood Construction
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.3/5 (91 download)
Download or read book Load and Resistance Factor Design for Engineered Wood Construction written by American Society of Civil Engineers. Task Committee on Load and Resistance Factor Design for Engineered Wood Construction and published by . This book was released on 1988 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger M. Rowell
Publisher : CRC Press
ISBN 13 : 0203492439
Total Pages : 505 pages
Book Rating : 4.2/5 (34 download)
Download or read book Handbook of Wood Chemistry and Wood Composites written by Roger M. Rowell and published by CRC Press. This book was released on 2005-02-18 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The degradable nature of high-performance, wood-based materials is an attractive advantage when considering environmental factors such as sustainability, recycling, and energy/resource conservation. The Handbook of Wood Chemistry and Wood Composites provides an excellent guide to the latest concepts and technologies in wood chemistry and bio-based composites. The book analyzes the chemical composition and physical properties of wood cellulose and its response to natural processes of degradation. It describes safe and effective chemical modifications to strengthen wood against biological, chemical, and mechanical degradation without using toxic, leachable, or corrosive chemicals. Expert researchers provide insightful analyses of the types of chemical modifications applied to polymer cell walls in wood, emphasizing the mechanisms of reaction involved and resulting changes in performance properties. These include modifications that increase water repellency, fire retardancy, and resistance to ultraviolet light, heat, moisture, mold, and other biological organisms. The text also explores modifications that increase mechanical strength, such as lumen fill, monomer polymer penetration, and plasticization. The Handbook of Wood Chemistry and Wood Composites concludes with the latest applications, such as adhesives, geotextiles, and sorbents, and future trends in the use of wood-based composites in terms of sustainable agriculture, biodegradability and recycling, and economics. Incorporating over 30 years of teaching experience, the esteemed editor of this handbook is well-attuned to educational demands as well as industry standards and research trends.
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (123 download)
Download or read book Effect of Load Duration on Dimension Lumber Strength written by and published by . This book was released on 1985 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John A. Newlin
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.A/5 ( download)
Download or read book The Relation of the Shrinkage and Strength Properties of Wood to Its Specific Gravity written by John A. Newlin and published by . This book was released on 1919 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H E Desch
Publisher : CRC Press
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.F/5 ( download)
Download or read book Timber written by H E Desch and published by CRC Press. This book was released on 1996-06-13 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: For nearly 60 years, Timber: Structure, Properties, Conversion, and Use has been the authoritative text on timber technology. Now in its seventh edition, this book remains a vital resource, providing accurate, comprehensive, and fact-driven information for students and professionals in the field. From basic coverage of timber structure, properties, processing, and utilization, to more in-depth scientific investigations, this book covers all the issues and topics of concern to readers with a wide range of levels of sophistication. Timber technology has not stood still since the last revision; Timber: Structure, Properties, Conversion, and Use has kept the pace, exploring such high-tech topics as computer-aided wood identification and log conversion, radio frequency drying of wood, enhancement of wood with plastics, application of preservatives with high-pressure vacuum systems, and the development and application of flame-retardant solutions. Other timely updates include enlarging the chapter on mechanical performance to cover elastic behavior, toughness, and the use of structural-sized timber for strength tests. The chapter on board materials has also been extensively updated and enlarged to include information on new boards and structural composites that have emerged since the last edition. One of the most important strengths of Timber: Structure, Properties, Conversion, and Use is its versatility as a reference for timber professionals while remaining approachable to students in the field. Evidence of the book?s comprehensiveness and versatility becomes clear as it teaches readers about such wide-ranging topics as: identification and nomenclature of timbers variability in cellular features between species principal chemical constituents in timber structural variability caused by natural defects such as bark pockets, resin streaks, and brittleheart determination of density and moisture content in timber thermal and acoustic properties of wood conversion equipment such as circular saws, band saws, frame saws, and chipper canters health and safety issues in the industry adhesives, metal connectors, and joint design forest and millyard pests application of preservatives and finishes From basic identification and timber nomenclature to methods of sap displacement and tests of electrical conductivity, Timber: Structure, Properties, Conversion, and Use covers it all. And while it is no longer possible for any one individual to write authoritatively on every aspect of timber technology, embracing as it does structure, properties, conversion, utilization, and behavior in service, J. M. Dinwoodie has gathered expert opinions and expanded on original author H. E. Desch?s approach and vision to continue to provide the authoritative text on timber technology.
Author : Theodore Laufenberg
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Creep and Creep-rupture Behavior of Wood-based Structural Panels written by Theodore Laufenberg and published by . This book was released on 1999 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 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 creep--rupture 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.
Author :
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (31 download)
Download or read book How the Environment Affects Lumber Design written by and published by . This book was released on 1982 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Forintek Canada Corp
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (89 download)
Download or read book Proceedings of the International Workshop on Duration of Load in Lumber and Wood Products written by Forintek Canada Corp and published by . This book was released on 1986 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective was to exchange information and ideas on experimentalmethodology, modelling alternatives and engineering code implementationsproblems, particularly in relation to reliability based design.
Author : Judith Stalnaker
Publisher : Springer Science & Business Media
ISBN 13 : 1461540828
Total Pages : 480 pages
Book Rating : 4.4/5 (615 download)
Download or read book Structural Design in Wood written by Judith Stalnaker and published by Springer Science & Business Media. This book was released on 2014-07-08 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prime purpose of this book is to serve as a design is of considerable value in helping the classroom text for the engineering or architec student make the transition from the often sim ture student. It will, however, also be useful to plistic classroom exercises to problems of the designers who are already familiar with design real world. Problems for solution by the student in other materials (steel, concrete, masonry) but follow the same idea. The first problems in each need to strengthen, refresh, or update their capa subject are the usual textbook-type problems, bility to do structural design in wood. Design but in most chapters these are followed by prob principles for various structural materials are lems requiring the student to make structural similar, but there are significant differences. planning decisions as well. The student may be This book shows what they are. required, given a load source, to find the magni The book has features that the authors believe tude of the applied loads and decide upon a set it apart from other books on wood structural grade of wood. Given a floor plan, the student design. One of these is an abundance of solved may be required to determine a layout of struc examples. Another is its treatment of loads. This tural members. The authors have used most of book will show how actual member loads are the problems in their classes, so the problems computed. The authors have found that students, have been tested.
Author : J. A. Liska
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (125 download)
Download or read book The Influence of Rate of Loading on the Strength of Wood and Wood-Base Materials written by J. A. Liska and published by . This book was released on 1956 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: That the strength properties of wood and wood-base materials are influenced by duration of stress has long been recognized, both in the use of design stresses and through the establishment of rate of loading requirements in standard test methods. This paper presents a summary of recent data that supplements the information presented by the authors at the 1948 ASTM symposium on the same subject (4). Extensive data have been obtained on the effect of rate of loading on the compression-parallel-to-grain and flexural strength properties of two hardwood and two softwood species. The similarity of trends obtained from short-time and long-time tests indicates that the relationship between ultimate strength and time can be presented in a simple curve from load durations of a fraction of a second to many years. Values for modulus of elasticity remain substantially constant irrespective of rate of loading. Data are also presented to show that the flexural strength of building fiberboards of the densities tested is increased as the rate of loading is increased. Further tests are necessary, however, to establish more precisely the magnitude of this effect for fiberboards. Additional studies are needed further to determine, for both wood and wood-base materials, the influence of rate of loading on other mechanical properties, and to provide more substantial data on the effect of loadings extended over many years.
Author : Abel O. Olorunnisola
Publisher : Springer
ISBN 13 : 3319653431
Total Pages : 288 pages
Book Rating : 4.3/5 (196 download)
Download or read book Design of Structural Elements with Tropical Hardwoods written by Abel O. Olorunnisola and published by Springer. This book was released on 2017-08-31 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides basic information on the design of structures with tropical woods. It is intended primarily for teaching university- and college-level courses in structural design. It is also suitable as a reference material for practitioners. Although parts of the background material relate specifically to West and East Africa, the design principles apply to the whole of tropical Africa, Latin America and South Asia. The book is laced with ample illustrations including photographs of real life wood structures and structural elements across Africa that make for interesting reading. It has numerous manual and Excel spread sheet worked examples and review questions that can properly guide a first-time designer of wooden structural elements. A number of design problems are also solved using the FORTRAN programming language. Topics covered in the thirteen chapters of the book include a brief introduction to the book, the anatomy and physical properties of tropical woods; a bri ef review of the mechanical properties of wood, timber seasoning and preservation, uses of wood and wood products in construction; basic theory of structures, and structural load computations; design of wooden beams, solid and built-up wooden columns, wood connections and wooden trusses; as well as a brief introduction to the design of wooden bridges.
