scholarly journals ANALYSIS OF CRUSHING OF GRANULAR MATERIAL UNDER ISOTROPIC AND BIAXIAL STRESS CONDITIONS

2005 ◽  
Vol 45 (4) ◽  
pp. 79-87 ◽  
Author(s):  
SEBASTIAN LOBO-GUERRERO ◽  
LUIS E. VALLEJO
Keyword(s):  
Granular Material ◽  
Stress Conditions ◽  
Biaxial Stress

Determination of Flow Curves under Equibiaxial Stress Conditions

2012 ◽  
Vol 504-506 ◽  
pp. 53-58 ◽  
Author(s):  
J. Mulder ◽  
Henk Vegter ◽  
Jin Jin Ha ◽  
A.H. van den Boogaard
Keyword(s):  
Low Carbon Steel ◽  
Temperature Correction ◽  
Stress Conditions ◽  
Biaxial Stress ◽  
Bulge Test ◽  
Low Carbon ◽  
Flow Curves ◽  
Hydraulic Bulge ◽  
The Individual

Three experimental methods have been used to establish flow curves for a low carbon steel under biaxial stress conditions: the hydraulic bulge test, the stack compression test and the biaxial tensile test. The individual tests are discussed and the results for a DC06 IF steel grade compared. Initially the results appear to be different but after compensation, including strain rate and temperature correction, the true hardening curves are coinciding.

Behavior of Steel Under Biaxial Stress as Determined by Tests on Tubes

1948 ◽  
Vol 15 (3) ◽  
pp. 201-215
Author(s):  
H. E. Davis ◽  
E. R. Parker
Keyword(s):  
Low Temperature ◽  
Low Carbon Steel ◽  
Stress Conditions ◽  
Biaxial Stress ◽  
Low Carbon ◽  
Plastic Range ◽  
Strain Behavior ◽  
Simple Tension ◽  
Two Temperatures ◽  
Reasonable Prediction

Abstract The experimental work is described and results presented for tests on twelve 5¼-in-diam thin-walled tubes of low-carbon steel subjected to various conditions of biaxial stress. These experiments composed the “pilot” series of tests in a larger investigation on the behavior of ship-plate steel under multiaxial stress conditions. The ductility of the metal under various biaxial stress conditions and at two temperatures, 70 F and −138F, is reported. The evidence indicates that the metal is reasonably ductile, even at the low temperature, provided it is subjected only to a state of plane stress. If a state of triaxial stress is induced by restraint or by discontinuities in the material, the ductility may be greatly reduced at the low temperature. Evidence is presented to indicate that fracture may occur either by shear or by cleavage, depending upon the stress and temperature conditions. In a majority of cases, reasonable prediction of the stress-strain behavior of the metal in the plastic range can be made for various biaxial stress conditions from the data of the simple tension test, by use of the modified octahedral-shear concept.

Influence of Anisotropic Materials on Stress Intensity Factor under Biaxial Stress Conditions

2006 ◽  
Vol 321-323 ◽  
pp. 1389-1394
Author(s):  
Taku Shimomura ◽  
Akira Shimamoto
Keyword(s):  
Stress Intensity ◽  
High Speed ◽  
Biaxial Loading ◽  
Axial Stress ◽  
Stress Conditions ◽  
Biaxial Stress ◽  
Polymer Materials ◽  
Structural Members ◽  
Loading Test ◽  
Dimensionless Stress

Polymer materials are used in the structural members such as aircraft, ship, automobiles in order to enlarge and lighten the machinery and structures. In such the machinery and structures, the complex destruction phenomena are generating by the deterioration of use conditions of the polymer materials. And the materials are placed under biaxial or multi-axial stress conditions rather than uni-axial stress conditions due to their complicated structures. To understand the basic deformation behaviours and the features in destruction process under multi-axial stress conditions is more important in the reliability and the accident prevention plan. To help overcome this problem, the authors have developed a hydraulic high-speed biaxial loading test device. In this study, we had comparative study for the values of the dimensionless stress intensity factors, F values by the photoelastic and caustics methods to clarify deformation behaviours and characteristics of polymer materials under biaxial stress conditions.

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