北洋産 主要 針, 闊葉樹材의 材質에 關한 硏究 = A Study on the Physical and Mechanical Properties of Some Major Northern Softwoods and Hardwoods

국문 초록 (Abstract)

北洋産 主要 針, 闊葉樹林의 物理的 性質(密度, 晩材率, 孔圈率, 平均年輪幅)과 力學的 性質(縱壓縮强度, 橫壓縮强度, 剪斷强度)에 관하여 硏究 調査하였다. 이 實驗의 硏究 結果는 다음과 같다.
密度와 晩材率은 物理的 力學的 性質과 密接한 關係를 나타낸 반면, 孔圈率과 平均年輪幅은 物理的 力學的 性質과 거의 關係가 없음을 나타내었다.

다국어 초록 (Multilingual Abstract)

The study was carried out to investigate the physical(Density, Percentage of latewood, Percentage of pore zone, Mean annual ring width) and mechanical(Compressive strength parallel to the grain, Compression perpendicular to the grain, Shearing strength) properties of some major northern softwoods and hardwoods.
The physical and mechanical properties of each species are summerized as Table 2 and the relationship between physical and mechanical factors are discussed.
The results of this study were as follows: Density and percentage of latewood are closely related to physical and mechanical properties, but percentage of pore zone and mean annual ring width are remotely related to physical and mechanical properties.