Experimental indication of interaction between viscoelastic and mechano-sorptive creep

Antti Hanhijärvi, David Hunt

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)

Abstract

This paper describes the study of possible interactions between the viscoelastic and mechano-sorptive creep in Pinus sylvestris. When two periods of constant-moisture creep were separated by a period of mechano-sorptive creep, the expected creep rate during the second viscoelastic period was decreased. A similar effect was observed during creep recovery. These results were taken to indicate an interaction between the two types of creep, although not necessarily a common mechanism. During recovery with uniform moisture cycling, the effects of one extra low and one extra high humidity were observed. The low humidity showed no significant effect, but the high humidity significantly increased the recovery. This was attributed to a parallel effect to that of creep: namely, the creep acceleration that occurs at a higher moisture level than has previously been reached during the test.
Original languageEnglish
Pages (from-to)57-70
JournalWood Science and Technology
Volume32
Issue number1
DOIs
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed

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creep
humidity
Creep
Atmospheric humidity
Pinus sylvestris
Moisture
moisture
Recovery
testing
effect

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Hanhijärvi, Antti ; Hunt, David. / Experimental indication of interaction between viscoelastic and mechano-sorptive creep. In: Wood Science and Technology. 1998 ; Vol. 32, No. 1. pp. 57-70.
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abstract = "This paper describes the study of possible interactions between the viscoelastic and mechano-sorptive creep in Pinus sylvestris. When two periods of constant-moisture creep were separated by a period of mechano-sorptive creep, the expected creep rate during the second viscoelastic period was decreased. A similar effect was observed during creep recovery. These results were taken to indicate an interaction between the two types of creep, although not necessarily a common mechanism. During recovery with uniform moisture cycling, the effects of one extra low and one extra high humidity were observed. The low humidity showed no significant effect, but the high humidity significantly increased the recovery. This was attributed to a parallel effect to that of creep: namely, the creep acceleration that occurs at a higher moisture level than has previously been reached during the test.",
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Experimental indication of interaction between viscoelastic and mechano-sorptive creep. / Hanhijärvi, Antti; Hunt, David.

In: Wood Science and Technology, Vol. 32, No. 1, 1998, p. 57-70.

Research output: Contribution to journalArticleScientificpeer-review

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