Hallgren, "The Role of Creep in Stress Strain Curves for Copper", J. Nucl. Mater., 2012, vol. 422, no. 1-3, pp. 51-57.Sandstro¨m R, Hallgren J (2012) The role of creep in stress strain curves for copper. J Nucl Mater 422:51-57...
Stress—strain analysis of creep deterioration in heat affected weld zone in high Cr ferritic heat resistant steel. LI D,SHINOZAKI K,KUROKI H. Materials Science and Technology . 2003Li D; Shinozaki K; Kuroki H.Stress-strain analysis of creep deterioration in heat affected weld zone in high Cr...
蠕变曲线(Creepcurve) briefintroduction Creepcurve Atroomtemperaturetensiletest,whenthestressisbelowthe yieldlimitforalongtime,thespecimenwillnotproduce plasticdeformation,thatistosay,thestressstrain relationshipwillnotchangeduetothelengthoftheload action.However,athighertemperature,especiallywhenthe ...
It is shown in this work that the problem of determining the stress--strain state of structural elements and the time before failure starts may be reduced to a similar problem assuming that creep is secondary. Solution of this latter problem is considered to be known. In order to obtain the...
Creep is the time-dependent strain induced by a constant mechanical loading. The strain is a function of the stress level, the time for which the stress is applied, and the temperature. The results can be presented graphically in various ways by combining these three parameters or in quantified...
The magnitude of strain-rate enhancement in simple shear was found to exceed that in uniaxial compression by a constant factor of 2.3. Results of experiments conducted at octahedral shear stresses of τo = 0.04-0.80 MPa indicate a creep power-law stress exponent of n = 3 for isotropic ...
Changes in lattice strains occur to a similar magnitude in both the γ and γ′ phases during stress relaxation, while in creep there is no clear monotonic trend in lattice strain in the γ phase, but only a marginal increase in the γ′ precipitates. Using a visco-plastic law derived ...
In Fig. 2, the long-term shear strength of the interface increases with the increase of normal stress, while the horizontal displacement of the interface is similar at each shear stress level. The shear creep curve of the contact surface of marine soft soil-concrete generally includes the insta...
In Fig. 1, three cases are illustrated with respect to the complete stress–strain curve: creep, i.e., increasing strain when the stress is held constant; stress relaxation, i.e., decreasing stress when the http://link.springer.com/article/10.1007/s00603-013-0520-6/fulltext.html 1/33 ...
In the present formulation, definitions of true strain and true stress were employed to avoid the estimation error of the creep function owing to the large deformation. At first, a definition of true strain of the following form is introduced to describe the deformation of the specimen. Sign ...