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경사핑거접합법에 의한 소나무재의 휨강도성능개량 (I)
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  • 경사핑거접합법에 의한 소나무재의 휨강도성능개량 (I)
저자명
변희섭,박한민,김종만,Byeon. Hee-Seop,Park. Han-Min,Kim. Jong-Man
간행물명
목재공학
권/호정보
1997년|25권 4호|pp.61-67 (7 pages)
발행정보
한국목재공학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The bending performances of sloped finger-joints in Pinus densiflora S. et Z. were tested in order to improve the strength properties of finger-joint Sloped finger-cut pieces were jointed with four kinds of adhesives(resorcinol-phenol, oilic urethane, polyvinyl acetate, and polyvinyl-acryl acetate resin). The slope ratios of finger joints were 0, 0.5, 1.0, 2.0. The MOE, MOR and defletion to maximum load in bending of sloped finger-joints and solid wood specimen were measured. The results were: 1. The efficiencies of MOE to finger and sloped finger-joints were 82% or greater in every kind of adhesives except polyvinyl-acryl acetate resin adhesive and there were some effect of slope on the MOE in a sloped finger-joint for polyvinyl-acryl acetate and oilic urethane resin adhesives. 2. The effects of slope on the MOR to sloped finger-joints were showed in every kind of adhesive, because the efficiencies of MOR increased with increasing slope ratio in sloped finger-joints. The efficiencies of MOR to slope ratios of 0 and 2.0 ranged 43~65% and 76~82%, respectively. There was almost no effect of the kinds of adhesives on the MOR to the slope ratio of 2.0. 3. It was found impossible to estimate the bending strength of sloped finger-jointed Pinus densiflora S. et Z. by using MOE. The correlation coefficient(0.124) between MOE and MOR was very low and not significant at 5% level.