Delamination In Wood Wood Products And Wood Based Composites

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Delamination in Wood, Wood Products and Wood-Based Composites

Author : Voichita Bucur
Publisher : Springer Science & Business Media
Page : 404 pages
File Size : 52,6 Mb
Release : 2010-11-02
Category : Nature
ISBN : 9789048195503

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Delamination in Wood, Wood Products and Wood-Based Composites by Voichita Bucur Pdf

In the last quarter century, delamination has come to mean more than just a failure in adhesion between layers of bonded composite plies that might affect their load-bearing capacity. Ever-increasing computer power has meant that we can now detect and analyze delamination between, for example, cell walls in solid wood. This fast-moving and critically important field of study is covered in a book that provides everyone from manufacturers to research scientists the state of the art in wood delamination studies. Divided into three sections, the book first details the general aspects of the subject, from basic information including terminology, to the theoretical basis for the evaluation of delamination. A settled terminology in this subject area is a first key goal of the book, as the terms which describe delamination in wood and wood-based composites are numerous and often confusing. The second section examines different and highly specialized methods for delamination detection such as confocal laser scanning microscopy, light microscopy, scanning electron microscopy and ultrasonics. Ways in which NDE (non-destructive evaluation) can be employed to detect and locate defects are also covered. The book’s final section focuses on the practical aspects of this defect in a wide range of wood products covering the spectrum from trees, logs, laminated panels and glued laminated timbers to parquet floors. Intended as a primary reference, this book covers everything from the microscopic, anatomical level of delamination within solid wood sections to an examination of the interface of wood and its surface coatings. It provides readers with the perspective of industry as well as laboratory and is thus a highly practical sourcebook for wood engineers working in manufacturing as well as a comprehensively referenced text for materials scientists wrestling with the theory underlying the subject.

Nondestructive Evaluation of Wood

Author : Forest Service (U S ),Forest Products Laboratory (U S ),Robert J. Ross
Publisher : Government Printing Office
Page : 176 pages
File Size : 45,9 Mb
Release : 2015
Category : Business & Economics
ISBN : 0160928877

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Nondestructive Evaluation of Wood by Forest Service (U S ),Forest Products Laboratory (U S ),Robert J. Ross Pdf

Nature's engineering of wood through genetics, wind, and weather creates a wide variability in wood as a material. Consequently, manufacture and users of wood products are frequently frustrated in dealing with the forest resource. Manufacturers sometimes argue that wood is difficult to consistently process into quality products because of the wide range of properties that exist in this raw material. Users of wood products can be equally frustrated with the performance variability found in finished products. Nondestructive evaluation (NDE) technologies have contributed significantly toward eliminating the cause of these frustrations. NDE technologies have been developed and are currently used in lumber and veneer grading programs that result in engineered materials that have consistent well-defined performance characteristics. This brief volume explores some of the processes that are used to manufacture wood, including green wood technology and provides a bit of history to wood production and its uses too. Other products that may interest you from the US Forest Service can be found at this link: https://bookstore.gpo.gov/agency/819

Springer Handbook of Wood Science and Technology

Author : Peter Niemz,Alfred Teischinger,Dick Sandberg
Publisher : Springer Nature
Page : 2064 pages
File Size : 47,7 Mb
Release : 2023-04-01
Category : Technology & Engineering
ISBN : 9783030813154

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Springer Handbook of Wood Science and Technology by Peter Niemz,Alfred Teischinger,Dick Sandberg Pdf

This handbook provides an overview on wood science and technology of unparalleled comprehensiveness and international validity. It describes the fundamental wood biology, chemistry and physics, as well as structure-property relations of wood and wood-based materials. The different aspects and steps of wood processing are presented in detail from both a fundamental technological perspective and their realisation in industrial contexts. The discussed industrial processes extend beyond sawmilling and the manufacturing of adhesively bonded wood products to the processing of the various wood-based materials, including pulp and paper, natural fibre materials and aspects of bio-refinery. Core concepts of wood applications, quality and life cycle assessment of this important natural resource are presented. The book concludes with a useful compilation of fundamental material parameters and data as well as a glossary of terms in accordance with the most important industry standards. Written and edited by a truly international team of experts from academia, research institutes and industry, thoroughly reviewed by external colleagues, this handbook is well-attuned to educational demands, as well as providing a summary of state-of-the-art research trends and industrial requirements. It is an invaluable resource for all professionals in research and development, and engineers in practise in the field of wood science and technology.

Research Developments in Wood Engineering and Technology

Author : Aguilera, Alfredo
Publisher : IGI Global
Page : 410 pages
File Size : 41,5 Mb
Release : 2013-09-30
Category : Technology & Engineering
ISBN : 9781466645554

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Research Developments in Wood Engineering and Technology by Aguilera, Alfredo Pdf

"This book examines the latest research advances and technological developments for wood material as an engineering product and the innovation it provides for environmental friendly materials"--Provided by publisher.

Green Composites from Natural Resources

Author : Vijay Kumar Thakur
Publisher : CRC Press
Page : 422 pages
File Size : 50,8 Mb
Release : 2013-11-25
Category : Technology & Engineering
ISBN : 9781466570696

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Green Composites from Natural Resources by Vijay Kumar Thakur Pdf

Global awareness of environmental issues has resulted in the emergence of economically and environmentally friendly bio-based materials free from the traditional side effects of synthetics. This book delivers an overview of the advancements made in the development of natural biorenewable resources-based materials, including processing methods and potential applications in green composites. Biorenewable polymers are a special class of natural material found in nature, such as natural fibers, wheat straw, rice husk, and saw dust. In addition to offering renewable feedstocks, natural biorenewable materials are compostable, recyclable, edible, and more energy efficient to process than plastic. Green Composites from Natural Resources covers various kinds of cellulosic biofibers, such as: hemp fibers jute saccaharum cilliare fibers pine needles grewia optiva fibers sisal fibers eulaliopsis binata flax fibers coconut fibers eulaliopsis binata baggase fibers rice husk saw dust wood flour straw With scopes for the utilization of natural resources-based materials as potential replacements for traditional petroleum feedstocks on the rise, more scientists and researchers are exploring new composite materials based on biorenewable resources. This book provides information on more eco-friendly and sustainable alternatives to synthetic polymers and discusses the present state and growing utility of green materials from natural resources.

Fatigue and Fracture of Non-metallic Materials and Structures

Author : Andrea Spagnoli
Publisher : MDPI
Page : 586 pages
File Size : 42,9 Mb
Release : 2020-06-23
Category : Technology & Engineering
ISBN : 9783039287789

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Fatigue and Fracture of Non-metallic Materials and Structures by Andrea Spagnoli Pdf

The mechanics of fracture and fatigue have produced a huge body of research work in relation to applications to metal materials and structures. However, a variety of non-metallic materials (e.g., concrete and cementitious composites, rocks, glass, ceramics, bituminous mixtures, composites, polymers, rubber and soft matter, bones and biological materials, and advanced and multifunctional materials) have received relatively less attention, despite their attractiveness for a large spectrum of applications related to the components and structures of diverse engineering branches, applied sciences and architecture, and to the load-carrying systems of biological organisms. This book covers the broad topic of structural integrity of non-metallic materials, considering the modelling, assessment, and reliability of structural elements of any scale. Original contributions from engineers, mechanical materials scientists, computer scientists, physicists, chemists, and mathematicians are presented, applying both experimental and theoretical approaches.

Forest-related disasters – Three case studies and lessons for management of extreme events

Author : van Hensbergen, H. and Cedergren, J.,Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 114 pages
File Size : 41,5 Mb
Release : 2021-01-06
Category : Technology & Engineering
ISBN : 9789251331859

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Forest-related disasters – Three case studies and lessons for management of extreme events by van Hensbergen, H. and Cedergren, J.,Food and Agriculture Organization of the United Nations Pdf

Forests are “victims” of disaster when unable to provide services required by society and cannot recover within a relevant timeframe. Trees damaged may host insect pests that may kill healthy trees or become fuel for forest fires. Fallen trees also damage infrastructure.Extreme events can change the cultural and economic life of small states/islands and/or cause the breakdown of societal services.Disasters affect timber supplies, distorting market functioning. Damaged timber is susceptible to attack from insects and fungi, quickly losing value, and insect attacks may spread to healthy trees.Forests can mitigate disasters by e.g. reducing the intensity of tsunamis or stabilizing slopes. Single trees may become important refuges for people during floods.Key messages include:• Responses require planning and training to enable efficient response also in the absence of key personnel.• Information about the location of critical resources is important, e.g. key staff, forestry equipment, access routes, and timber storage sites.• It is impossible for many small countries to be resilient on their own. Development of regional response capacity is desirable, e.g. pools of qualified operators, equipment resources, and training.• Salvage timber is a resource and an economic asset. Planning on the use of forest resources after disasters is rarely undertaken, and policies or regulations covering this type of use are often missing.• Salvaging timber is dangerous and requires training.

Handbook of Materials for String Musical Instruments

Author : Voichita Bucur
Publisher : Springer
Page : 975 pages
File Size : 43,5 Mb
Release : 2016-08-29
Category : Technology & Engineering
ISBN : 9783319320809

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Handbook of Materials for String Musical Instruments by Voichita Bucur Pdf

This book addresses core questions about the role of materials in general and of wood in particular in the construction of string instruments used in the modern symphony orchestra – violins, violas, cellos and basses. Further attention is given to materials for classical guitars, harps, harpsichords and pianos. While some of the approaches discussed are traditional, most of them depend upon new scientific approaches to the study of the structure of materials, such as for example wood cell structure, which is visible only using modern high resolution microscopic techniques. Many examples of modern and classical instruments are examined, together with the relevance of classical techniques for the treatment of wood. Composite materials, especially designed for soundboards could be a good substitute for some traditional wood species. The body and soundboard of the instrument are of major importance for their acoustical properties, but the study also examines traditional and new wood species used for items such as bows, the instrument neck, string pegs, etc. Wood species’ properties for musical instruments and growth origins of woods used by great makers such as Antonio Stradivari are examined and compared with more recently grown woods available to current makers. The role of varnish in the appearance and acoustics of the final instrument is also discussed, since it has often been proposed as a ‘secret ingredient’ used by great makers. Aspects related to strings are commented.As well as discussing these subjects, with many illustrations from classical and contemporary instruments, the book gives attention to conservation and restoration of old instruments and the physical results of these techniques. There is also discussion of the current value of old instruments both for modern performances and as works of art having great monetary value.The book will be of interest and value to researchers, advanced students, music historians, and contemporary string instrument makers. Musicians in general, particularly those playing string instruments, will also find its revelations fascinating. It will also attract the attention of those using wood for a variety of other purposes, for its use in musical instruments uncovers many of its fundamental features. Professor Neville H. FletcherAustralian National University, Canberra

Delamination of Edge-glued Wood Panels

Author : Bryan H. River
Publisher : Unknown
Page : 16 pages
File Size : 55,9 Mb
Release : 1991
Category : Glue
ISBN : MINN:31951D030090272

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Delamination of Edge-glued Wood Panels by Bryan H. River Pdf

Laminated Wood-based Composites

Author : John Youngquist
Publisher : Unknown
Page : 44 pages
File Size : 45,7 Mb
Release : 1981
Category : Laminated wood
ISBN : MINN:30000008933883

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Laminated Wood-based Composites by John Youngquist Pdf

Motivating Change: Sustainable Design and Behaviour in the Built Environment

Author : Robert Crocker,Steffen Lehmann
Publisher : Routledge
Page : 470 pages
File Size : 42,8 Mb
Release : 2013-07-24
Category : Architecture
ISBN : 9781135043858

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Motivating Change: Sustainable Design and Behaviour in the Built Environment by Robert Crocker,Steffen Lehmann Pdf

Today’s most pressing challenges require behaviour change at many levels, from the city to the individual. This book focuses on the collective influences that can be seen to shape change. Exploring the underlying dimensions of behaviour change in terms of consumption, media, social innovation and urban systems, the essays in this book are from many disciplines, including architecture, urban design, industrial design and engineering, sociology, psychology, cultural studies, waste management and public policy. Aimed especially at designers and architects, Motivating Change explores the diversity of current approaches to change, and the multiple ways in which behaviour can be understood as an enactment of values and beliefs, standards and habitual practices in daily life, and more broadly in the urban environment.

Wood Composites

Author : Martin P Ansell
Publisher : Woodhead Publishing
Page : 444 pages
File Size : 46,8 Mb
Release : 2015-07-24
Category : Technology & Engineering
ISBN : 9781782424772

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Wood Composites by Martin P Ansell Pdf

Recent progress in enhancing and refining the performance and properties of wood composites by chemical and thermal modification and the application of smart multi-functional coatings have made them a particular area of interest for researchers. Wood Composites comprehensively reviews the whole field of wood composites, with particular focus on their materials, applications and engineering and scientific advances, including solutions inspired biomimetrically by the structure of wood and wood composites. Part One covers the materials used for wood composites and examines wood microstructure, and wood processing and adhesives for wood composites. Part Two explores the many applications of wood composites, for example plywood, fibreboard, chipboard, glulam, cross-laminated timber, I-beams and wood-polymer composites. The final part investigates advances in wood composites and looks at the preservation and modification of wood composites, environmental impacts and legislative obligations, nano-coatings and plasma treatment, biomimetic composite materials, the integration of wood composites with other materials and carbonized and mineralized wood composites. Comprehensively reviews the entire field of wood composites in a single volume Examines recent progress in enhancing and refining the performance and properties of wood composites by chemical and thermal modification and the application of smart multi-functional coatings Explores the range of wood composites, including both new and traditional products

Introduction to Wood and Natural Fiber Composites

Author : Douglas D. Stokke,Qinglin Wu,Guangping Han
Publisher : John Wiley & Sons
Page : 330 pages
File Size : 45,6 Mb
Release : 2013-10-21
Category : Science
ISBN : 9781118676073

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Introduction to Wood and Natural Fiber Composites by Douglas D. Stokke,Qinglin Wu,Guangping Han Pdf

Over the past two decades, there has been a shift in research and industrial practice, and products traditionally manufactured primarily from wood are increasingly combined with other nonwood materials of either natural or synthetic origin. Wood and other plant-based fiber is routinely combined with adhesives, polymers, and other "ingredients" to produce composite materials. Introduction to Wood and Natural Fiber Composites draws together widely scattered information concerning fundamental concepts and technical applications, essential to the manufacture of wood and natural fiber composites. The topics addressed include basic information on the chemical and physical composition of wood and other lignocellulosic materials, the behavior of these materials under thermocompression processes, fundamentals of adhesion, specific adhesive systems used to manufacture composite materials, and an overview of the industrial technologies used to manufacture major product categories. The book concludes with a chapter on the burgeoning field of natural fiber-plastic composites. Introduction to Wood and Natural Fiber Composites is a valuable resource for upper-level undergraduate students and graduate students studying forest products and wood science, as well as for practicing professionals working in operational areas of wood- and natural-fiber processing. For more information on the Wiley Series in Renewable Resources, visit www.wiley.com/go/rrs Topics covered include: Overview of lignocellulosic material, their chemical and physical composition Consolidation behavior of wood and fiber in response to heat and pressure Fundamentals of adhesion Adhesives used to bond wood and lignocellulosic composites Manufacturing technology of major product types Fiber/plastic composites

General Technical Report SO.

Author : Anonim
Publisher : Unknown
Page : 618 pages
File Size : 49,9 Mb
Release : 1977
Category : forests and forestry
ISBN : UOM:39015009916704

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General Technical Report SO. by Anonim Pdf

Handbook of Materials for Percussion Musical Instruments

Author : Voichita Bucur
Publisher : Springer Nature
Page : 1044 pages
File Size : 41,5 Mb
Release : 2022-07-07
Category : Science
ISBN : 9783030986506

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Handbook of Materials for Percussion Musical Instruments by Voichita Bucur Pdf

This book describes the properties of materials used for making percussion instruments for classical music played by a symphony orchestra in which the instruments could be played as a soloist instrument or as a group or several groups of instruments, as they are included into a musical work. A chapter is devoted to the bells. The scope of this book is primarily confined to percussion instruments of symphony orchestras taking into account the centuries of musical art and tradition. This book bridges the gap in the technical literature on describing the properties of materials for percussion instruments—timpani, other drums, marimba, xylophone, vibraphone, gong, cymbal, triangle, celesta, castanets.