effect of moisture sorption state on vibrational properties of wood


The vibrational properties of Chinese fir wood during ...

"The vibrational properties of Chinese fir wood during moisture sorption process," BioRes. 7(3), 3585-3596.Online Message


EFFECT OF TRANSITIONAL MOISTURE CHANGE ON THE VIBRATIONAL ...

EFFECT OF TRANSITIONAL MOISTURE CHANGE ON THE VIBRATIONAL PROPERTIES OF VIOLIN-MAKING WOOD Iris Br??maud (1), Joseph Gril (1) 1. Wood Team, Laboratory of Mechanics and Civil Engineering, CNRS, Universit?? de Montpellier, France Introduction Wood is a very hygroscopic material. each species served to measure properties at WhenOnline Message


THE VIBRATIONAL PROPERTIES OF ... - Nc State University

the vibrational properties of chinese fir wood during moisture sorption process The vibrational properties of Chinese fir (Cunninghamia lanceolata) wood were investigated in this study as a function of changes in moisture content (MC) and grain direction.Online Message


Effect of Moisture Sorption State on Vibrational ...

Effect of Moisture Sorption State on Vibrational Properties of Wood Jianxiong Lu Jiali Jiang Yiqiang Wu Xianjun Li Zhiyong Cai Abstract The purpose of this study was to investigate the vibrational properties and corresponding anisotropicity in wood during different states of moisture sorption.Online Message


Jiali Jiang, Cai and Jianxiong Lu - Forest Products Laboratory

Wood . of sorption hystersis suggests that in terms of the existing states of moisture, wood moisture-conditioned during the adsorption process is different from that during the desorption process. It is interesting that how such a difference in the existing state of moisture affects vibrational properties of wood.Online Message


Influence of moisture content on the vibrational ...

Effects of equilibrium moisture content on the vibrational properties of chemically treated woods The E~ 7 and tan6 of the untreated and chemically treated wood specimens are plotted against M in Fig. 4. Although the E/y differed among the treatments, the shapes of E/y versus M curves showed an analogous trend.Online Message


RESEARCH INTO SORPTION AND MECHANICAL PROPERTIES OF ...

Research into sorption and mechanical properties of natural and modified birch wood 57 in other cases the relationship between mass and strength remained unchanged. In addition, the mechanical properties of wood are highly dependent on the bound moisture content. As a rule, thermally-modified wood has smaller amounts of mo-isture.Online Message


Moisture Sorption and Thermodynamic Properties of Wood ...

The thermodynamic properties associated with moisture sorption by wood mainly include three parameters of differential heat of sorption (or net isosteric heat of sorption) , free energy change , and differential entropy , which can be obtained from both experimental measurement and theoretical calculation .Online Message


Effect of Moisture Sorption State on Vibrational ...

It is interesting that such a difference in the existing state of moisture affects the vibrational properties of wood. The aim of this study was to investigate the effect of the state of moisture sorption on the vibrational behavior of wood.Online Message


An evaluation of the effects of moisture content on the ...

Jiang J, Cai Z, Lu J. Effect of moisture sorption state on vibrational properties of wood. In: 16th international symposium on nondestructive testing and evaluation of wood; 2009, p. 177???83.Online Message


Effect of Moisture Sorption State on Vibrational ...

The purpose of this study was to investigate the vibrational properties and corresponding anisotropicity in wood during different states of moisture sorption.Online Message


Fundamentals of Moisture Sorption Isotherms - Pittcon

(moisture content) that can be held at a given energy state (water activity). Moisture sorption isotherms describe the relationship between water activity and moisture content at a constant temperature. The nature of this relationship depends on the interaction between water and other ingredients. The amount of water vapor thatOnline Message


Influence of wood structure on moisture desorption and ...

mechanical properties of wood begin to change as a function of MC (USDA 1974).??? ... Effect of moisture upon the strength and stiffness of wood. U.S.D.A Forest Service, Bulletin 70. ... State of sorption salt solution Methods ??? sorption tests.Online Message


Effect of High-pressure Densification on Moisture Sorption ...

3, 30, and 300 s) on the moisture sorption properties of Paulownia wood was investigated. After the densification, samples were conditioned at three temperatures (20, 30, and 40 ??C) and five equilibrium moisture contents (from 11.20 to 95.62%) during the study, after which the equilibrium moisture contents of the control and treated samples were measured.Online Message


Products Case

Previous:1/2 inch tongue and groove composite decking
Next:recycled material patio deck tiles