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木材の曲げにおける寸法効果
http://hdl.handle.net/10076/6130
http://hdl.handle.net/10076/61307723b884-4df9-433e-a39d-db8889c17d16
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AN002343370007106.pdf (405.0 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||
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| 公開日 | 2007-07-18 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | 木材の曲げにおける寸法効果 | |||||||||||||
| 言語 | ja | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | jpn | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||
| 著者 |
増田, 稔
× 増田, 稔
× 大河平, 行雄
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | In this study, theory of size effect of wood in bending is discussed. Prior to theoretical study, measurement of size effect on Western hemlock (Tuga heterophylla Sarg.) in bending was carried out. Size effect factor of MOR（Modulus of rupture）is 58.0 and that of proportional limit is 34.5. But size effect of MOE（Modulus of elastisity） was not recognized. Change of strain distribution with increase of load was measured, and the following behavior was observed : Plastic deformation begins at compression surface near load of proportional lmit of load-deflection curve, and after that, neutral axis moves to the tension side with increase of load. Assuming that (i)stress-strain relation in compression is elastoplastic and (ii) size effect in compression dose not exist, the following equation was derived for the relation between size effect in bending and that in tension ; mb = mi log (k2/k1) / log (3k2-1/1+k2)・1+k1/3k1-1) where k2 = (d1/d2)3/mi k1, k1 : ratio tensile strength and compressive strength of beam with size d1, b : in bending, i : in tension, m : factor of size effect i. e. ó2cr/ó1cr = (d1/d2)3/m, ó1cr, ó2cr : MOR of beam with height of d1, and d2, respectively. |
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| 書誌情報 |
三重大學農學部學術報告 = The bulletin of the Faculty of Agriculture, Mie University 巻 71, p. 61-69, 発行日 1985-12-01 |
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| ISSN | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0462-4408 | |||||||||||||
| 書誌レコードID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AN00234337 | |||||||||||||
| フォーマット | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | application/pdf | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| その他のタイトル | ||||||||||||||
| 言語 | en | |||||||||||||
| 値 | Size Effect of Wood in Bending | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | 三重大学農学部 | |||||||||||||
| ノート | ||||||||||||||
| 値 | Agropedia提供データ | |||||||||||||
| 資源タイプ（三重大） | ||||||||||||||
| 値 | Departmental Bulletin Paper / 紀要論文 | |||||||||||||
