کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259711 503641 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical and moisture-dependent swelling properties of compressed Japanese cedar
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Mechanical and moisture-dependent swelling properties of compressed Japanese cedar
چکیده انگلیسی

In this research, five groups of compressed wood specimens were investigated, four made from compressed Japanese cedar (Cryptomeria japonica D. Don) with compression ratios (CR) of 33%, 50%, 67% and 70%, and one without compressing for control purpose. The measurements of moisture-dependent swelling of the specimens were carried out in the R, T and L directions, with typical strain values of 10%, 1.5% and 0.1% respectively corresponding to the CR = 67%. Mechanical property tests of the compressed wood were also undertaken. Material properties obtained cover radial and tangential swelling strain rates, shear moduli in LR, LT and RT planes, Young’s moduli in the L, R, T directions and Poisson ratios in all planes. The Young’s moduli along the longitudinal and radial directions have been increased by over 300% in relation to the CR of 70%.

Research highlights
► Compressed wood with various compression ratios (CR) was investigated.
► We found moisture-dependent swelling in the R direction as high as17% for CR of 70%.
► The Young’s moduli along the L and R directions are increased by over 300% for CR of 70%.
► We obtained all basic mechanical properties in the principal directions and planes.
► Properties obtained are ready to be used in the finite element modelling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 25, Issue 4, April 2011, Pages 1718–1725
نویسندگان
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