SILK PERSIAN CARPET UNDER LOADING IN DIFFERENT ENVIRONMENTAL CONDITIONS

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MOJABI S.A.; SHEYKHZADEH NAJAR S.; HOSSEINI HASHEMI SH.; RASHIDI A.; BASAMS J.

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Journal Paper

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Journal: GOLJAAM Year:2006 | Volume:- | Issue:3 Page(s): 104-90

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Title

SILK PERSIAN CARPET UNDER LOADING IN DIFFERENT ENVIRONMENTAL CONDITIONS

Author(s)

Keywords

HAND-MADE CARPET

ENVIRONMENTAL CONDITIONS

CREEP

EYRING MODEL

Abstract

In this research, an apparatus was designed and constructed in order to simulate the storage behavior of hand-woven carpet under different ENVIRONMENTAL CONDITIONS. Silk hand-woven carpet ("Gom") with 115x75 cm dimensions and 102x97 knot per 10 cm was selected and then inserted into the packing simulator with two different laying configurations including flat and folded. The ENVIRONMENTAL CONDITIONS was adjusted at 3 different conditions including 25 ±5% r.h and 30±2°c (July-Tehran-Dry), 65 ±5% r.h and 6 ± 2°c (February-Tehran-humid), 40±5% r.h and 19 ± 2°c (October -Tehran-mild).The carpet sample was compressed under constant loads of 135 and 150 kg. The variation of carpet thickness with time in different parts of carpet was continuously measured using data acquisition system. The result of experiment shows that the carpet thickness is suddenly decreased at a short period of time and then reached to a stable condition. The variation trend of carpet thickness with time is accordance with a logarithm equation (y=axLn(t)-b) which is highly in agreement with EYRING MODEL proposed in CREEP theory. But at the dry conditions, the variation of carpet thickness at the folded point follow a non-linear power equation (y=ax (t)ˆb) with a low correlation coefficient. However, the variation of carpet thickness at the non-folded point and flat configuration is very low. Generally, at the humidity condition, maximum carpet thickness variation occurred at folded point with folded configuration. On the other hand, carpet thickness variations at dry condition are less those of at humidity and mild conditions. In addition, carpet thickness at dry condition more quickly reached to stable condition than those of at humidity and mild conditions.

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APA: Copy

MOJABI, S.A., SHEYKHZADEH NAJAR, S., HOSSEINI HASHEMI, SH., RASHIDI, A., & BASAMS, J.. (2006). SILK PERSIAN CARPET UNDER LOADING IN DIFFERENT ENVIRONMENTAL CONDITIONS. GOLJAAM, -(3), 104-90. SID. https://sid.ir/paper/536225/en

Vancouver: Copy

MOJABI S.A., SHEYKHZADEH NAJAR S., HOSSEINI HASHEMI SH., RASHIDI A., BASAMS J.. SILK PERSIAN CARPET UNDER LOADING IN DIFFERENT ENVIRONMENTAL CONDITIONS. GOLJAAM[Internet]. 2006;-(3):104-90. Available from: https://sid.ir/paper/536225/en

IEEE: Copy

S.A. MOJABI, S. SHEYKHZADEH NAJAR, SH. HOSSEINI HASHEMI, A. RASHIDI, and J. BASAMS, “SILK PERSIAN CARPET UNDER LOADING IN DIFFERENT ENVIRONMENTAL CONDITIONS,” GOLJAAM, vol. -, no. 3, pp. 104–90, 2006, [Online]. Available: https://sid.ir/paper/536225/en

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