STUDY ON POLYURETHANE FOAM MATERIAL CONSTITUTIVE RELATION AND IT. S APPLICATION IN SANDWICH PANELS

Qin Peicheng; Zha Xiaoxiong; Yu Hang

doi:10.13204/j.gyjz200804020

Volume 38 Issue 4

Dec. 2014

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Qin Peicheng, Zha Xiaoxiong, Yu Hang. STUDY ON POLYURETHANE FOAM MATERIAL CONSTITUTIVE RELATION AND IT. S APPLICATION IN SANDWICH PANELS[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(4): 77-81. doi: 10.13204/j.gyjz200804020

Citation:

Qin Peicheng, Zha Xiaoxiong, Yu Hang. STUDY ON POLYURETHANE FOAM MATERIAL CONSTITUTIVE RELATION AND IT. S APPLICATION IN SANDWICH PANELS[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(4): 77-81. doi: 10.13204/j.gyjz200804020

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STUDY ON POLYURETHANE FOAM MATERIAL CONSTITUTIVE RELATION AND IT. S APPLICATION IN SANDWICH PANELS

doi: 10.13204/j.gyjz200804020

1.
Civil Engineering of Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 510085

Received Date: 2007-06-03
Publish Date: 2008-04-20

Abstract

Abstract

In order to investigate the stress-strain relationship and Poisson. s ratio of the polyurethane foam material, the quas-i static tensile, compression, and shear test was conducted at room temperature with the loading speed 2mmPmin and the results show that, the material has an excellent ductility behavior on compression, but on tension and shearing, it. s obviously brittle; the Poisson. s ratio is somewhat discrete, it. s about 0. 25. In addition, based on it. s stress-strain relationship curves, a simple fitting constitutive relation is given. By the constitutive relation a FEM model is got to simulate the experiment, and the results show the validity of the constitutive relation model.
- tension,
- compression,
- shearing,
- stress,
- strain