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  • Proceedings

    18th International Nondestructive Testing and Evaluation of Wood SymposiumMadison, Wisconsin, USA2013

    ForestProductsLaboratory

    GeneralTechnicalReport

    FPLGTR226

    United States Department of Agriculture

    Forest Service

  • September 2013

    Ross, Robert J.; Wang, Xiping, eds. 2013. Proceedings: 18th International Nondestructive Testing and Evaluation of Wood Symposium. General Technical Report FPL-GTR-226. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 808 p.

    A limited number of free copies of this publication are available to the public from the Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 537262398. This publication is also available online at www.fpl.fs.fed.us. Laboratory publications are sent to hundreds of libraries in the United States and elsewhere.

    The Forest Products Laboratory is maintained in cooperation with the University of Wisconsin.

    and does not imply endorsement by the United States Department of Agriculture (USDA) of any product or service.

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    Abstract

    The 18th International Nondestructive Testing and Evalua-

    tion of Wood Symposium was hosted by the USDA Forest

    Services Forest Products Laboratory (FPL) in Madison,

    was a forum for those involved in nondestructive testing

    and evaluation (NDT/NDE) of wood and brought together

    many NDT/NDE users, suppliers, international research-

    ers, representatives from various government agencies, and

    other groups to share research results, products, and technol-

    ogy for evaluating a wide range of wood products, including

    standing trees, logs, lumber, and wood structures. Network-

    ing among participants encouraged international collabora-

    tive efforts and fostered the implementation of NDT/NDE

    technologies around the world. The technical content of the

    18th Symposium is captured in this proceedings.

    Keywords: International Nondestructive Testing and

    Evaluation of Wood Symposium, nondestructive testing,

    nondestructive evaluation, wood, wood products

    Contents

    Session 1. Industrial Applications of NDT Technologies

    Session 2. Nondestructive Evaluation and Hazard Assess-

    ment of Urban Trees

    Session 3. Nondestructive Evaluation of Standing Timber

    Session 5. Condition Assessment of Historic Wood

    StructuresExperience from Around the Globe

    Session 6. Nondestructive Evaluation of Composite Materi-

    alsNanocellulosic Films to Glued Laminated Timber

    Session 7. Nondestructive Evaluation of Structural Materials

    I New Techniques and Approaches

    Session 8. Nondestructive Evaluation of Structural Materials

    II Enhancements to Traditional Methods and New

    Applications

    Session 9. Material Characterization IAcoustic-Based

    Techniques

    Session 10. Material Characterization IINear Infrared,

    Neutron Imaging, and Other Techniques

    Session 11. Structural Condition Assessment INDT

    Fundamentals and Assessment Methods

    Session 12. Structural Condition Assessment IINew

    Techniques and Field Experiences

    Session 13. Poster Session

    2

  • Proceedings

    18th International Nondestructive Testing and Evaluation of Wood Symposium

    Madison, Wisconsin, USA 2013

    Edited by

    Robert J. Ross, Supervisory Research General Engineer

    Xiping Wang, Research Forest Products Technologist

    Forest Products Laboratory, Madison, Wisconsin

    Preface

    The International Nondestructive Testing and Evaluation of

    Wood Symposium Series started 50 years ago in Madison,

    Wisconsin, USA. Since its inception, 17 symposia have

    been held in various countries around the world, includ-

    ing China, Germany, Hungary, Switzerland, and the United

    States.

    The 18th International Nondestructive Testing and Evalua-

    tion of Wood Symposium was hosted by the USDA Forest

    Services Forest Products Laboratory (FPL) in Madison,

    was a forum for those involved in nondestructive testing and

    evaluation (NDT/NDE) of wood and brought together many

    NDT/NDE users, suppliers, international researchers, rep-

    resentatives from various government agencies, and other

    groups to share research results, products, and technology

    for evaluating a wide range of wood products, including

    standing trees, logs, lumber, and wood structures. Network-

    ing among participants encouraged international collabora-

    tive efforts and fostered the implementation of NDT/NDE

    technologies around the world.

    The 18th Symposium was especially important because in

    addition to its strong technical content, it was a celebration

    of 50 years of this symposium series! The opening session,

    From Strong Beginnings to an International Research

    Community, included keynote speakers from around the

    globe who presented the state-of-the-art in nondestructive

    presentation of the opening session titled From Conception

    to Completion. Individuals who have been key contributors

    to the success of this symposium series were given special

    recognition at the symposiums banquet. Engraved plaques

    were awarded to Helmuth Resch, Bill and Pat Galligan, and

    Roy and Patti Pellerin in thanks for their outstanding efforts

    and continuous support. Special events included a Wiscon-

    sin style brat fry hosted by the Forest Products Laboratory

    Employees Association, a 50th anniversary cake, an excel-

    lent banquet with outstanding local talent providing enter-

    tainment, tours of FPLs Centennial Research Facility, and a

    post-symposium dinner cruise on Madisons beautiful Lake

    Monona.

    A special publication, Fifty Years of Nondestructive Testing

    and Evaluation of Wood ResearchInternational Nonde-

    structive Testing and Evaluation of Wood Symposium Se-

    ries, was produced by FPL in commemoration of the 50th

    anniversary. This publication includes a brief history of

    the symposium series, summaries of each symposium, and

    searchable electronic copies of the proceedings from each

    symposium. Each attendee received a complimentary elec-

    tronic copy of the publication.

    The technical content of the 18th Symposium is captured

    in the following proceedings. Full length, in-depth techni-

    cal papers for oral presentations were prepared and are

    published herein. Abstracts for poster presentations are also

    included.

    The organization of the following proceedings follows that

    of the sessions at the 18th Symposium. Thirteen technical

    sessions were held:

    1. Industrial Applications of NDT Technologies

    2. Nondestructive Evaluation and Hazard Assessment of

    Urban Trees

    3. Nondestructive Evaluation of Standing Timber

    Nondestructive Evaluation of Logs

    5. Condition Assessment of Historic Wood Structures

    Experience from Around the Globe

    6. Nondestructive Evaluation of Composite Materials

    Nanocellulosic Films to Glued Laminated Timber

    7. Nondestructive Evaluation of Structural Materials I

    New Techniques and Approaches

    3

  • 8. Nondestructive Evaluation of Structural Materials II

    Enhancements to Traditional Methods and New

    Applications

    9. Material Characterization IAcoustic-Based

    Techniques

    10. Material Characterization IINear Infrared, Neutron

    Imaging, and Other Techniques

    11. Structural Condition Assessment INDT Fundamen-

    tals and Assessment Methods

    12. Structural Condition Assessment IINew Techniques

    and Field Experiences

    13. Poster Session

    We express our sincere appreciation and gratitude to mem-

    bers of the Organizing Committee, International Nonde-

    structive Testing and Evaluation of Wood Symposium Se-

    ries, for their efforts in making this symposium a success:

    Brian K. Brashaw, Program Director, University of

    Minnesota Duluth, USA

    Francisco Arriaga Martitegui, Professor, Universidad

    Politcnica de Madrid, Spain

    Ferenc Divos, Professor, University of Western Hun-

    gary, Hungary

    Roy F.Pellerin, Professor Emeritus, Washington State

    University, USA

    Raquel Gonalves, Associate Professor, University of

    Campinas, Brazil

    We thank the Forest Products Society (FPS) and Internation-

    al Union of Forestry Research Organizations (IUFRO) for

    their support. Thanks also go to the following organizations

    or who exhibited equipment and wood products: Natural Re-

    sources Research Institute, University of Minnesota Duluth

    (NRRI UMD); Washington State University (WSU); Forest

    Products SocietyMidwest Section; U.S. Department of

    Transportation Federal Highway Administration (USDOT

    FHWA); Beijing Forestry University (BFU); Fakopp En-

    terprise; F

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