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Effects of density profile of MDF on stiffness and strength of nailed joints
| Title: | Effects of density profile of MDF on stiffness and strength of nailed joints |
| Authors: | Sawata, Kei Browse this author →KAKEN DB | | Shibusawa, Tatsuya Browse this author | | Ohashi, Kazuo Browse this author | | Sotomayor Castellanos, Javier Ramon Browse this author | | Hatano, Yasunori Browse this author |
| Keywords: | press closing speed | | nail-head pull-through | | lateral nail resistance | | single shear joint | | density profile |
| Issue Date: | Jan-2008 |
| Publisher: | Springer Japan |
| Journal Title: | Journal of Wood Science |
| Volume: | 54 |
| Issue: | 1 |
| Start Page: | 45 |
| End Page: | 53 |
| Publisher DOI: | 10.1007/s10086-007-0909-5 |
| Abstract: | Nail-head pull-through, lateral nail resistance, and single shear nailed joint tests were conducted on medium density fiberboard (MDF) with different density profiles, and the relations between the results of these tests and the density profiles of MDF were investigated. The maximum load of nail-head pull-through and the maximum load of nailed joints were little affected by the density profile. However, the ultimate strength of lateral nail resistance, the stiffness, and the yield strength of nailed joints were affected by the density profile of MDF and showed high values when the surface layer of the MDF had high density. It is known that bending performance is also influenced by density profile. Therefore, the stiffness and the yield strength of nailed joints were compared with the bending performance of MDF. The stiffness of nailed joints was positively correlated with the modulus of elasticity (MOE); in the case of CN65 nails, the initial stiffness of joints changed little in response to changes in MOE. The yield strength of nailed joints had a high positive correlation with the modulus of rupture (MOR). The stiffness and the yield strength of nailed joints showed linear relationships with MOE and MOR, respectively. |
| Rights: | The original publication is available at www.springerlink.com |
| Relation: | http://www.springerlink.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/33771 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 澤田 圭
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