FRACTURE BEHAVIOR OF BEECH-FURAN WOOD/POLYMER UNDER MODE I

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ABDOLZADEH H.; EBRAHIMI GH.; LAYEGHI M.; GHASSEMIEH M.; MIRSHOKRAEI S.A.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2015 | Volume:29 | Issue:4 Page(s): 605-618

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Title

FRACTURE BEHAVIOR OF BEECH-FURAN WOOD/POLYMER UNDER MODE I

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Keywords

FRACTURE MECHANICSQ2

WOOD-POLYMERQ1

MODE IQ2

FRACTURE TOUGHNESSQ1

ENERGY RELEASE RATEQ2

Abstract

In this study, fracture characteristics of WOOD-POLYMER under MODE I were investigated by double cantilever beam. In this regard, the properties of furfurylated wood specimens with three different levels of furfuryl (20%, 30% and 65%) were evaluated in both RL and TL systems. Results indicated that load-displacement curves from MODE I fracture specimens were changed by furfurylation so that it was much clear on curves of TL system. These changes not only included curve slope in elastic and proportional limit zones, but also fracture zone and initiation of crack growth were also affected. Furthermore furfurylation and raising its content on both systems and especially on TL one, caused to change in stress intensity factor, KIC, and critical ENERGY RELEASE RATE, GIC. In both systems, GIC were severely increased by increasing the furfuryl contents. This criterion demonstrated that the wood- polymer showed much toughness under MODE I fracture. Moreover, variation of KIC values due to furfurylation at both systems was different with that of GIC. At the RL system, ascending trend was observed at KIC and GIC values by increasing furfurylation levels. But at TL system, KIC was decreased by furfurylation and this criterion enhanced by increasing of furan polymer in the cell wall. Generally, results of this research show that FRACTURE TOUGHNESS of wood is highly affected by furfurylation.

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APA: Copy

ABDOLZADEH, H., EBRAHIMI, GH., LAYEGHI, M., GHASSEMIEH, M., & MIRSHOKRAEI, S.A.. (2015). FRACTURE BEHAVIOR OF BEECH-FURAN WOOD/POLYMER UNDER MODE I. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 29(4), 605-618. SID. https://sid.ir/paper/109784/en

Vancouver: Copy

ABDOLZADEH H., EBRAHIMI GH., LAYEGHI M., GHASSEMIEH M., MIRSHOKRAEI S.A.. FRACTURE BEHAVIOR OF BEECH-FURAN WOOD/POLYMER UNDER MODE I. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2015;29(4):605-618. Available from: https://sid.ir/paper/109784/en

IEEE: Copy

H. ABDOLZADEH, GH. EBRAHIMI, M. LAYEGHI, M. GHASSEMIEH, and S.A. MIRSHOKRAEI, “FRACTURE BEHAVIOR OF BEECH-FURAN WOOD/POLYMER UNDER MODE I,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 29, no. 4, pp. 605–618, 2015, [Online]. Available: https://sid.ir/paper/109784/en

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