The ?-concept in the theory of creep and its modification for describing the creep limit

1989 ◽  
Vol 21 (12) ◽  
pp. 1613-1617
Author(s):  
R. A. Arutyunyan ◽  
S. V. Petrov ◽  
A. G. Tereshchenko
Keyword(s):  
Creep Limit

Stable-state creep limit of softwood

1987 ◽  
Vol 6 (3) ◽  
pp. 353-354 ◽  
Author(s):  
D. G. Hunt ◽  
C. F. Shelton
Keyword(s):  
Stable State ◽  
Creep Limit

scholarly journals Simple Determination of Creep Limit for Mild Steel

1958 ◽  
Vol 24 (143) ◽  
pp. 434-440 ◽  
Author(s):  
Toshio NISHIHARA ◽  
Shuji TAIRA ◽  
Kichinosuke TANAKA ◽  
Masateru ONAMI
Keyword(s):  
Mild Steel ◽  
Creep Limit

Short-term creep and creep limit on the base of 1�10 sec of technically pure tungsten and alloy of the system W-HfC-HfO2 at high temperatures

1987 ◽  
Vol 19 (9) ◽  
pp. 1216-1224 ◽  
Author(s):  
V. V. Bukhanovskii ◽  
V. K. Kharchenko ◽  
K. B. Povarova ◽  
E. K. Zavarzina ◽  
A. B. Ol'shanskii
Keyword(s):  
High Temperatures ◽  
Pure Tungsten ◽  
Short Term ◽  
Creep Limit ◽  
Term Creep ◽  
Short Term Creep

Parametric method of evaluating the long-term strength and creep limit of metal lots

1979 ◽  
Vol 11 (10) ◽  
pp. 1169-1172 ◽  
Author(s):  
I. I. Trunin ◽  
Ya. F. Fridman ◽  
I. M. Perets
Keyword(s):  
Parametric Method ◽  
Term Strength ◽  
Creep Limit

Triaxial stress relaxation tests on Saskatchewan potash

1995 ◽  
Vol 32 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Rui Chen ◽  
B. Stimpson
Keyword(s):  
Stress Relaxation ◽  
Constitutive Model ◽  
Underground Mining ◽  
Deformation Modulus ◽  
Constitutive Law ◽  
Loading Path ◽  
Triaxial Tests ◽  
Axial Deformation ◽  
Creep Limit ◽  
Reverse Loading

Relative to the study of creep, the stress relaxation phenomenon has been overlooked in research on salt rocks, especially with respect to the behavior of salt in deep underground mining environments. In the laboratory tests described in this paper, deformational properties of potash were first studied by performing reverse-loading tests that approximately simulate in situ loading paths during excavation of underground cavities. Potash relaxation properties were then investigated by multiple-stage, repeated relaxation tests along the reverse-loading path. Results show that potash behavior along a reverse-loading path is highly stress rate dependent and is reflected in the dependence of the initial axial deformation modulus, ductile point, and post-yield behavior on the rate at which the deviatoric stress is applied to the specimen. The inserted relaxation phases did not significantly affect the subsequent behavior of the potash, and therefore inserted relaxation tests are useful for investigating time-dependent behavior at various stages of deformation. A linear relationship exists between normalized stress drop and logarithm of time, which might imply that potash has no creep limit. Finally, an attempt was made to extend a uniaxial strain hardening constitutive law postulated by another researcher to include confining pressure, and the experimental data were found to approximately fit the proposed constitutive model. Key words : potash, stress relaxation, triaxial tests, constitutive model.

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