Paper Title:
Micromechanical Material Model of Wooden Veneers for Numerical Simulations of Plywood Progressive Failure
  Abstract

The plywood material is widely used in civil engineering and furniture industry as cheap, strong, and lightweight material. The progressive failure of the plywood is difficult to be modeled and predicted because of the complexity of its structure and the interaction between different modes of orthogonal damages and interlayer failure. The microstructure of the wood determines the failure of the plies. A micromechanical material model of wooden veneers is developed, which is based on a representative volume cell (RVC) taken from the tubular microstructure of the wood and represented as a truss structure with longitudinal, transverse, and diagonal bar finite elements. The damage variables prescribed for each type of the bars determine the progressive degradation of the material stiffness. The 2-D damage material model of wooden veneers is utilized as user-defined material in continuum shell elements of ABAQUS™ finite element code. The parameters of the model are determined to simulate the behavior of single veneers in tension tests in different directions of loading. Together with cohesive elements representing the interface between the plies, the suggested model can be used to simulate and analyze the progressive failure and damage interaction in the plywood. The simulations could give us better understanding of the complex failure of the plywood, the succession of the damage development and reveal the weakest link in the material. The analysis can be used for optimization of the plywood layup.

  Info
Periodical
Edited by
Liviu MARSAVINA
Pages
169-176
DOI
10.4028/www.scientific.net/KEM.399.169
Citation
I. V. Ivanov, T. Sadowski, "Micromechanical Material Model of Wooden Veneers for Numerical Simulations of Plywood Progressive Failure ", Key Engineering Materials, Vol. 399, pp. 169-176, 2009
Online since
October 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rimma Lapovok
Abstract:Equal Channel Angular Extrusion (ECAE) has become a very popular tool for studying the evolution of microstructure and properties under...
37
Authors: S.M.H. Seyedkashi, Golam Hosein Liaghat, Hassan Moslemi Naeini, M. Hoseinpour Gollo
Abstract:Tube hydroforming technology is still considered a new technique growing fast in automotive and aircraft industries. Many researches on all...
133
Authors: Wojciech Wajda, Henryk Paul
Abstract:The paper describes the mechanism of deformation at 77 K of pure aluminum bicrystals of different grain orientations. The following...
108
Authors: Hui Hui Zhao, Wen Fang Zhang
Chapter 3: Civil Engineering
Abstract:The application of ABAQUS finite element software non-linear finite element analysis of brick masonry walls with structural column. Build...
791