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논문 기본 정보

자료유형
학술저널
저자정보
이필우 (서울대학교 농과대학) 박희준 (서울대학교 농과대학)
저널정보
한국목재공학회 목재공학(Journal of the Korean Wood Science and Technology) 목재공학 제19권 제1호
발행연도
1991.1
수록면
22 - 30 (9page)

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초록· 키워드

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This study was carried out to determine the Joint characteristic of L-type specimens. L-type specimens were made of two kinds uf solid woods(Antiaris, Sepetir) and three kinds of wood based materials(plywood, particleboard, medium density fiberboard). They were constructed with PVC anchor and screw, and were discussed with joint strength and stiffness coefficients. The obtained results were as follows: 1. Bending strength showed very high increasing rate from one to three used PVC anchor and screw but was a little rise from three to four used PVC anchor and screw in solid wood. However. in wood based materials, it was unchanged without increasing rate or slight decreased from three to four used PVC anchor and screw. 2. The stiffness coefficients, or Z-values, were in the range from $4.704\times10^{-4}$ to $1.864\times10^{-3}$(rad/kgf-cm). They showed $10^{-3}$ level in one PVC anchor and screw but $10^{-4}$ level in two, three. four PVC anchor and screw. Accordingly, they indicated flexible joints in one PVC anchor and screw and relatively stable joints in two, three. four PVC anchor and screw. 3. Measured ultimate bending moments were 258.70kgf-cm in plywood and 142.68kgf-cm in medium density fiberboard. 4. Comparing with dowel joint. the joint strength used PVC anchor screw was inferior to 8mm and 10mm dowel diameter but differ little from 6mm dowel diameter.

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