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Ketabi, E., Lashgari, A. (2017). The impact of truss structure on stiffness by finite element method. , 32(1), 69-82. doi: 10.22092/ijwpr.2017.107116
Ehsan Ketabi; Amir Lashgari. "The impact of truss structure on stiffness by finite element method". , 32, 1, 2017, 69-82. doi: 10.22092/ijwpr.2017.107116
Ketabi, E., Lashgari, A. (2017). 'The impact of truss structure on stiffness by finite element method', , 32(1), pp. 69-82. doi: 10.22092/ijwpr.2017.107116
Ketabi, E., Lashgari, A. The impact of truss structure on stiffness by finite element method. , 2017; 32(1): 69-82. doi: 10.22092/ijwpr.2017.107116

The impact of truss structure on stiffness by finite element method

تحقیقات علوم چوب و کاغذ ایران
Article 7, Volume 32, Issue 1 - Serial Number 58, April 2017, Pages 69-82    PDF (797.27 K)
Document Type: Research Paper
DOI: 10.22092/ijwpr.2017.107116
Authors
Ehsan Ketabi1; Amir Lashgari* 2
1M.Sc., graduate student, Department of wood and paper Engineering, College of Agriculture and Natural Resources, Karaj branch of Islamic Azad University
2Associate Professor, Department of wood and paper Engineering, College of Agriculture and Natural Resources, Karaj branch of Islamic Azad University
Abstract
In this study was to evaluate the impact of the truss structure on stiffness and stress distribution in the truss structural members. Made and synchronizes this structures with any Populus_ Nigra lumbers, in finally made 44 truss structure with 11 varying samples and 4 replicates. were used by two joint like friction joints was created with Glue stick and dual joint was created with nails to the 4.5 cm and calculate the resistance trusses structures by mechanical testing machine with 12.5 mm/min loading speed and 3.5 KN than mechanical test results showed, Hip Girder truss most resistance stress distribution and were the least impact on the strength and distribution of tension truss structure is significant in 95%. To show the stress distribution on the members, modeling software was AutoCAD, Catia and finite element analysis software was ANSYS. In finally the results show that maximum stress concentration, failure to engage in experimental mode.
Keywords
truss; mechanical test; dowel joint; wood; friction joint; Finite element method
References

1)Arguelles (2003). Estructura de Madera. Diseno Calculo[Timber structures. Design and Calculus.]. Asociacion de Investigacion Tecnica de las lndustrias de la Madera Corcho, Madrid (AITIM), Spain.
2)Ellegaard (2006). Finite-element modeling of timber joints with punched, metal plate fasteners. Journal of Structural Engineering, 132(3), 409417.
3)Freilingor (1997). Cyclic Performance of Wood Truss Joints. Proct: Structural Congress XV AM. Society of Civil Engineer, Restart, VA, , 939943.

4)Hektor, Full Size Truss Joints Made of Old Wood: Laboratory Tests on Shear Failures. ICOMOS IWC-XVI International Symposium-Florence, Venice .2047.4

5)Kent (1997). Dynamic Behavior of Metal Plate Connected Wood Truss Joint. Journal of Structural Engineering , 123 (8):  1037-1043.

6)Stehn (2004). The influence of nail ductility on the load capacity of a glulam truss structure. Engineering Structures, 26(6), 809-816.

7)Xu (2009). Numerical 3D Finite Element Modelling and Experimental Tests for Dowel Type Timber Joints. Construction and Building Materials, 23, 3043-3052 

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