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

doi:10.11707/j.1001-7488.20020619

Scientia Silvae Sinicae ›› 2002, Vol. 38 ›› Issue (6): 110-115.doi: 10.11707/j.1001-7488.20020619

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THE PARTICULARITY OF APPLICATION OF PRINCIPLES OF LINEAR-ELASTIC FRACTURE MECHANICS TO WOOD AND FRACTURE PARALLEL TO GRAIN

Shao Zhuoping,Jiang Zehui,Ren Haiqing

Anhui Agricultural University Hefei 230036;Research Institute of Wood Industry, CAF Beijing 100091

Received:2001-05-10 Revised:1900-01-01 Online:2002-11-25 Published:2002-11-25

Abstract

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.

Key words: Wood fracture, Liner electric fracture mechanics, Fracture toughness, Test technique

Shao Zhuoping;Jiang Zehui;Ren Haiqing. 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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THE PARTICULARITY OF APPLICATION OF PRINCIPLES OF LINEAR-ELASTIC FRACTURE MECHANICS TO WOOD AND FRACTURE PARALLEL TO GRAIN

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