| 线弹性断裂力学原理在木材中应用的特殊性与木材顺纹理断裂 |
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| 引用本文： | 邵卓平,江泽慧,任海青. 线弹性断裂力学原理在木材中应用的特殊性与木材顺纹理断裂[J]. 林业科学, 2002, 38(6): 110-115 |
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| 作者姓名： | 邵卓平 江泽慧 任海青 |
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| 作者单位： | 1. 安徽农业大学,合肥,230036
2. 中国林业科学研究院木材工业研究所,北京,100091 |
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| 基金项目： | 国家九五攀登专题“人工林木材断裂性质研究”的部分内容 |
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| 摘 要： | 阐述了线弹性断裂力学 (LEFM)的原理以及在木材中应用的特殊性 ,并以杉木和马尾松为研究对象 ,采用不同试样和方法测定了木材的顺纹断裂韧性KTLIC 。研究表明 ,建立在各向同性体之上的LEFM原理对木材裂纹顺纹扩张是适用的 ,其顺纹断裂韧性是木材的固有属性
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| 关 键 词： | 木材断裂 线弹性断裂力学 断裂韧性 测试方法 |
| 修稿时间： | 2001-05-10 |
THE PARTICULARITY OF APPLICATION OF PRINCIPLES OF LINEAR-ELASTIC FRACTURE MECHANICS TO WOOD AND FRACTURE PARALLEL TO GRAIN |
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| Shao Zhuoping. THE PARTICULARITY OF APPLICATION OF PRINCIPLES OF LINEAR-ELASTIC FRACTURE MECHANICS TO WOOD AND FRACTURE PARALLEL TO GRAIN[J]. Scientia Silvae Sinicae, 2002, 38(6): 110-115 |
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| Authors: | Shao Zhuoping |
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| Abstract: | The particularity about applying the principles of linear elastic fracture mechanics (LEFM) to wood were expounded. The fracture toughness K TL IC parallel to grain of wood of Chinese fir ( C.lanceolata ) and Masson pine ( P.massoniana ) were determined with different samples and methods. The results showed that LEMF based on isotropic material is suited for wood crack growth parallel to grain. The fracture toughness parallel to grain is a basic property of wood. |
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| Keywords: | Wood fracture Liner electric fracture mechanics Fracture toughness Test technique |
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