Creep properties of heat treated wood in radial direction. Université Montpellier 2 - CNRS Laboratoire de Mécanique et Génie Civil Equipe Mécanique de.

Slides:

Advertisements

Similar presentations

1 Anisotropic characteristics of wood dynamic viscoelastic properties Jianxiong Lu, Fucheng Bao and Jiali Jiang Key Laboratory of Wood Science and Technology.

Advertisements

EN Division-Metallurgy and Metrology

Civil Engineering Materials

Materials for Civil and Construction Engineers CHAPTER 10 Wood

Department of Civil and Environmental Engineering University of Illinois at Urbana-Champaign Alex Apeagyei Prof Bill Buttlar Prof Barry Dempsey Development.

Sliding of a charge density wave probed by coherent X-Ray Diffraction E. Pinsolle Laboratoire de physique des solides, Orsay.

Chapter 8: Physical Properties of Renewable Composites

Manufacturing Technology

Characteristics of timber - Relationship to properties

Characterization of Soil Resilience as influenced by Organic Management Practices in Perturbed Vertisol Ritesh Saha ICAR- Indian Institute of Soil Science.

Introduction Superconductors are a class of material that when cooled to low temperatures, conduct electricity with zero resistance. The main use of superconductors.

Effects of APP on the Fire-retardant and Mechanical properties of Wood-flour/HDPE Composite WANG Qing-Wen, SHAO Bo, ZHANG Zhi-Jun, SONG Yong-Ming Northeast.

Slide 1 © CSIR Etienne K.Ngoy, I. Campbell, R. Paskaramoorthy School of Mechanical, Industrial, and Aeronautical Engineering University.

1 The Influence of Elevated Temperatures The Influence of Elevated Temperatureson Selected Properties of Rubberwood Selected Properties of Rubberwood 1,2.

Dynamics of a Colloidal Glass During Stress-Mediated Structural Arrest (“Relaxation in Reverse”) Dynamics of a Colloidal Glass During Stress-Mediated Structural.

Engineering Properties of Wood

Forestry Chapter 8: Wood and Water

Food Freezing Basic Concepts (cont'd) - Prof. Vinod Jindal

In the name of Allah. Development and psychometric Testing of a new Instrument to Measure Affecting Factors on Women’s Behaviors to Breast Cancer Prevention:

Methods: To assess the impact each removal method had on the corrosive resistant coating, each of the twelve plates were broken down into four zones, one.

Characterizing and Modeling Mechanical Properties of Biomass Harvesting and Processing Shuai Zhang Ag. And Biological Eng. Dept. Pennsylvania State University.

THE CHOICE OF SCIENTIFIC CAREER Dr. Ognyan Tzanev Bulgarian-German Conference “Bulgaria and the Lisbon strategy. Reform in educational system and changes.

ACQUARIO DI GENOVA 5 th Italian cultural site per number of visitors (after Vatican Museums, Pompei, Uffizi Gallery in Florence, Doge’s Palace in Venice)

Moisture impact on building rocks - the laboratory and in situ investigations FIDRÍKOVÁ D., KUBIČÁR Ľ. Institute of Physics SAS, Bratislava, Slovakia The.

Wood Structure and Properties

Department of Tool and Materials Engineering Investigation of hot deformation characteristics of AISI 4340 steel using processing map.

Analytical approaches for 1 H NMR wide line spectra of Soil Organic Matter Alexander Jäger 1, Marko Bertmer 1, Gabriele E. Schaumann 2 References Introduction.

1 NATIONAL ACADEMY OF SCIENCES OF UKRAINE COMBINE TECHNOLOGY FOR PRODUCTION OF COAXIAL Cu-Al ELECTRIC CONDUCTORS BY EXPLOSION CLADDING AND DRAWING FOR.

Ensis Wood Processing THE JOINT FORCES OF CSIRO & SCION Adding value to radiata pine wood: stiffness and dimensional stability enhancement by a novel process.

LOGO Soil slope stability analysis combining shear strength reduction and slip line method Supervisor: Yongchang Cai Ph.D. candidate: Jie Wu School of.

Wood Technology. Structure and Growth  Formed of long tubular fibers, about 1/25in in length in hardwoods and 1/8in for softwoods  Annual rings- composed.

EFFECTS OF EDAPHIC FACTORS AND AGRICULTURAL PRACTICES ON THE MOBILIZATION CAPACITY OF PHOSPHORUS IN SOILS AND SEDIMENTS INTRODUCTION The surface water.

Architectural acoustics Acoustical materials. Sound absorber: Reapor Expanded Glass Granulate  Description  The sound absorber for challenging environments.

Use of thermally modified wood in building constructions Prof.dr. Franc Pohleven University of Ljubljana Biotechnical Faculty,

THE MODELING OF THE LIMIT STATE OF DUCTILE THICK-WALLED PIPES WITH AXIAL SURFACE DEFECTS Orynyak I.V., Ageyev S.M. G.S. Pisarenko Institute for Problems.

South America Timber Structures Code

ETH Zurich Institute for Building Materials (IfB), Wood Physics Group © ETH Zürich Solid wood panels – a.

EFFECTS OF FREEZE DRYING ON PAPER. INTRODUCTION OBJECTIVES MATERIALS USED EXPERIMENTAL SETUP TREATMENT OF SAMPLES TEST METHODS RESULTS AND DISCUSSION.

The improvement of the energy resolution in epi-thermal region of Bonner sphere using boric acid solution moderator H. Ueda1, H. Tanaka2, Y. Sakurai2.

Strength of Material-1 Introduction. Dr. Attaullah Shah.

Food Freezing Basic Concepts (cont'd) - Prof. Vinod Jindal 1 FST 151 FOOD FREEZING FOOD SCIENCE AND TECHNOLOGY 151 Food Freezing - Basic concepts (cont’d)

Ondřej Svoboda Nuclear Physics Institute, Academy of Sciences of Czech Republic Department of Nuclear Reactors, Faculty of Nuclear Sciences and Physical.

Thermo-treated wood is a new generation of wood material and superior to non-treated wood in these ways: Increased weather durability by 25 years for outdoor.

General Rheology Senior/Graduate HMA Course Asphalt Binder

1C8 Advanced design of steel structures

12-CRS-0106 REVISED 8 FEB 2013 September 2015 IEEE Technical Activities Volunteer Training IEEE Technical Educational Activities.

Design Guidelines Injection Moulding Engineering Design.

SORPTION ISOTHERMS CONSTRUCTION & EVALUATION Jiri Blahovec, Stavros Yanniotis.

Design of Tension Members in Timber

BING-TC CEN/TC88-WG6 PU boards Robert Walter 26/05/2009 BING 09/139.

Wood Structure Hardwood Softwood.

Deterioration of Dowel Bearing Properties of Timber due to Fungal Attacks Ali Awaludin, J.P. Gentur Sutapa – Universitas Gadjah Mada Kei Sawata, Tomonori.

MODIFICATION OF CELLULOSE BY ANIONIC POLYSACCHARIDES

Shanghai Research Institute of Building Sciences

Lumber Drying Reasons to dry lumber --Dimensional stability Methods

Films preparation, mechanical properties and WVP determination

Reporter : Jia-Lin Lu Advisor: Cheng-Ho Chen Date :104/12/22

Stefano Romeo on behalf of SPARC_LAB collaboration

Figure 1. Moulding of a pipe from massive compressed wood panels

Analytical Solutions for Heat Distribution in KB Mirror Systems

Thomas BOTZANOWSKI & Blandine CHAZARIN

EFL Teacher Education in China and Moldova: A Comparative Study

دانشگاه شهیدرجایی تهران

تعهدات مشتری در کنوانسیون بیع بین المللی

This year the Land and Poverty Conference is glad to welcome poster session presenters. Poster session presenters are asked to provide their own posters.

Insert your topic name here

Zeinab A. Osman, Ph.D Department of Cellulose Chemistry and Technology

MEBT1&2 design study for C-ADS

Poster Title: Background and Introduction Methods and Results

ETAg as a nominating authority of JSPS

Presentation transcript:

Creep properties of heat treated wood in radial direction. Université Montpellier 2 - CNRS Laboratoire de Mécanique et Génie Civil Equipe Mécanique de l’Arbre et du Bois PhD student Julien COLMARS Museu D. Diogo de Sousa, Braga, Portugal, 5-7 November 2008 Parallel session 2 (WG2) Strength of Aged Load Bearing Structures // POSTER N° 8

Introduction Background: Heat treatment was used in previous studies as an ‘accelerated ageing’ and showed so far good results on different softwood with respect to the darker color, fragile behavior and the improved stability against humidity changes. Our objective: Determine the effect of heat treatment on creep behavior of hardwood, such as Poplar wood, in transverse direction (literature is mainly focused on longitudinal direction). These choices were motivated by our previous work on panel paintings (COST IE0601 Florence 2007). Host institute & Funding: This study was conducted in Kyoto University thanks to the Japanese Society for Promotion of Science (JSPS).

Thickness 1.6mm Width 10mm Length 60mm Saturated solutions: Relative Humidity 11,22,43,53,62,75,84,92,97% at 24°C 10 days conditioning Heat treatment (150°C, 24 hours) No treatment Sorption Isothermes Material & Method Creep tests on Italian Poplar samples in Radial direction 3 points bending Creep Tests (10 hours) At constant humidity (22,62,84,92,97%)

Discussion Influence of moisture content in service (even constant mc%) on creep behavior of both treated and untreated poplar. Chemical modification of wood during heat treatment and its effects on creep properties. Discussion about post treatment methods for analyzing the results (Time response spectrum, Approximate Complex Plane…). Special Acknowledgements: To Miyuki MATSUO and Misao YOKOYAMA from RISH (Kyoto University) for the discussions about heat treatment. Thanks to Luca UZIELLI for providing the material of this study, and Bertrand MARCON for preparing and deliver it...

Thank you for your attention