Torsion test on solid and tubular specimens for testing the plastic behaviour of metals

1984 ◽  
Vol 55 (4) ◽  
pp. 149-158 ◽  
Author(s):  
Klaus Pöhlandt ◽  
A. Erman Tekkaya ◽  
Erhard Lach
Keyword(s):  
Torsion Test ◽  
Plastic Behaviour ◽  
Tubular Specimens

Off-Axis Torsion Tests on Tubular Specimens of Steel

2001 ◽  
Vol 123 (3) ◽  
pp. 268-273 ◽  
Author(s):  
Takenobu Takeda ◽  
Zhongchun Chen
Keyword(s):  
Shear Stress ◽  
Yield Stress ◽  
Maximum Shear Stress ◽  
Torsion Test ◽  
Combined Loading ◽  
Anisotropic Hardening ◽  
Principal Stresses ◽  
Maximum Value ◽  
The Difference ◽  
Tubular Specimens

In order to analyze the anisotropic hardening behavior of metals, an off-axis torsion test by combined loading is developed. In this test, the maximum shear stress direction φ can be changed from 0 deg to 90 deg while the ratio of maximum and minimum principal stresses is kept at −1. With increasing angle φ, the yield stress of the torsional-prestrained steel decreases; the difference between the directions of the maximum shear stress and principal shear strain increment rises to a maximum value and then decreases. It is experimentally verified that anisotropy is more severe when a smaller offset strain is used in defining the yield stress.

Effect of Specimen Geometry on Hot Torsion Test Results for Solid and Tubular Specimens

1973 ◽  
Vol 1 (3) ◽  
pp. 220 ◽  
Author(s):  
SF Etris ◽  
VK Sisca ◽  
KC Lieb ◽  
IC Moore ◽  
AL Batik ◽  
...  
Keyword(s):  
Torsion Test ◽  
Specimen Geometry ◽  
Test Results ◽  
Hot Torsion ◽  
Hot Torsion Test ◽  
Tubular Specimens

Constitutive modelling of the thermo-plastic behaviour of soils

2005 ◽  
Vol 9 (5-6) ◽  
pp. 635-650 ◽  
Author(s):  
Lyesse Laloui ◽  
Cane Cekerevac ◽  
Bertrand François
Keyword(s):  
Constitutive Modelling ◽  
Plastic Behaviour
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