Numerical modelling of timber and timber joints: computational aspects

被引：29
|
作者：
Sandhaas, Carmen [1 ]
Sarnaghi, Ani Khaloian [2 ]
van de Kuilen, Jan-Willem [2 ,3 ]
机构：
[1] Karlsruhe Inst Technol, Timber Struct & Bldg Construct, R Baumeister Pl 1, D-76131 Karlsruhe, Germany
[2] Tech Univ Munich, Holzforsch Munchen, Winzererstr 45, D-80797 Munich, Germany
[3] Delft Univ Technol, Biobased Struct & Mat, Delft, Netherlands
来源：
WOOD SCIENCE AND TECHNOLOGY | 2020年 / 54卷 / 01期
关键词：
CONSTITUTIVE MODEL; TO-GRAIN; DAMAGE; FAILURE; LOAD; TESTS; WOOD; BEHAVIOR;
D O I：
10.1007/s00226-019-01142-8
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Timber joints with their simultaneous ductile and brittle failure modes still pose a major challenge when it comes to modelling. Wood is heterogeneous and highly anisotropic. It shows ductile behaviour in compression and brittle behaviour in tension and shear. A 3D constitutive model for wood based on continuum damage mechanics was developed and implemented via a subroutine into a standard FE framework. Embedment and joint tests using three different wood species (spruce, beech and azobe) were carried out, and the results were compared with modelling outcomes. The failure modes could be identified, and the general shape of the load-displacement curves agreed with the experimental outcomes.
引用
收藏
页码：31 / 61
页数：31
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