Dynamic bending of an oak board due to a moisture content gradient

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

When an oak board is exposed to moisture on only one of its surfaces, an asymmetric moisture content profile induces differential expansion over the thickness. Consequently, a bending moment causes the board to curve. Meanwhile, moisture transport takes place, which results in a continuously changing bending moment. When exposed to a step change in the moisture content, the end of the board deflects to a maximum, after which the board, due to moisture transport, deflects back to its initial x-position. The y-position of the free end of the board changes continuously too, but reaches a different value eventually due to a different moisture content. In real-life applications, however, objects are most often exposed to continuous or cyclic changes in the relative humidity. It is shown that the deflective step response of the board contains information about its frequency behavior. When assuming linear system behavior, the frequency response can be predicted from the step response. Experiments with a sinusoidal fluctuation in relative humidity at different frequencies confirm the prediction from the step response.

LanguageEnglish
Title of host publicationPoromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics, 9-13 July 2017, Paris, France
Place of Publications.l.
PublisherAmerican Society of Civil Engineers (ASCE)
Pages386-394
Number of pages9
ISBN (Electronic)9780784480779
DOIs
StatePublished - 2017
Event6th Biot Conference on Poromechanics - Ecole des Ponts ParisTech and IFSTTAR, Paris, France
Duration: 9 Jul 201713 Jul 2017
https://biot2017.sciencesconf.org

Conference

Conference6th Biot Conference on Poromechanics
Abbreviated titleBIOT 6
CountryFrance
CityParis
Period9/07/1713/07/17
OtherA tribute to Olivier Coussy
Internet address

Fingerprint

moisture content
Moisture
moisture
bending moments
gradients
Step response
humidity
Bending moments
Atmospheric humidity
linear systems
frequency response
Frequency response
expansion
Linear systems
causes
curves
profiles
predictions
Experiments

Cite this

Arends, T., Pel, L., Huinink, H. P., Schellen, H. L., & Smeulders, D. M. J. (2017). Dynamic bending of an oak board due to a moisture content gradient. In Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics, 9-13 July 2017, Paris, France (pp. 386-394). s.l.: American Society of Civil Engineers (ASCE). DOI: 10.1061/9780784480779.047
Arends, T. ; Pel, L. ; Huinink, H.P. ; Schellen, H.L. ; Smeulders, D.M.J./ Dynamic bending of an oak board due to a moisture content gradient. Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics, 9-13 July 2017, Paris, France. s.l. : American Society of Civil Engineers (ASCE), 2017. pp. 386-394
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Arends, T, Pel, L, Huinink, HP, Schellen, HL & Smeulders, DMJ 2017, Dynamic bending of an oak board due to a moisture content gradient. in Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics, 9-13 July 2017, Paris, France. American Society of Civil Engineers (ASCE), s.l., pp. 386-394, 6th Biot Conference on Poromechanics, Paris, France, 9/07/17. DOI: 10.1061/9780784480779.047

Dynamic bending of an oak board due to a moisture content gradient. / Arends, T.; Pel, L.; Huinink, H.P.; Schellen, H.L.; Smeulders, D.M.J.

Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics, 9-13 July 2017, Paris, France. s.l. : American Society of Civil Engineers (ASCE), 2017. p. 386-394.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Arends T, Pel L, Huinink HP, Schellen HL, Smeulders DMJ. Dynamic bending of an oak board due to a moisture content gradient. In Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics, 9-13 July 2017, Paris, France. s.l.: American Society of Civil Engineers (ASCE). 2017. p. 386-394. Available from, DOI: 10.1061/9780784480779.047