Yield stress
Thermoinduced plastic flow and shape memory effects
... Mises yield function with the combined effective stress |ϱ(T )˜ τ − ...current stress level becomes ...the yield stress as the radius of the current yield surface (work hardening) ...
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State update algorithm for associative elastic-plastic pressure-insensitive materials by incremental energy minimization
... In this section we consider the application of the proposed state update algorithm to a geometrically nonlinear problem. In particular, we refer to the problem of a cylindrical shell, constrained by rigid diaphragms at ...
17
Density and rheological parameters of goat milk
... The rheological behavior and density of goat milk was studied as a function of solids concentration (10.5 to 50.0%) and temperature (273 to 331 k). Newtonian behavior was observed for values of total solids (TS) between ...
5
Numerical simulation of the bulk forming processes for 1345 aluminum alloy billets
... A lot of microscopic models are developed in order to obtain a law of macroscopic friction [19-20]. The plastic wave model, formulated with slip line theory [21] and the upper bound, consider a plane strain field in a ...
9
Lat. Am. j. solids struct. vol.12 número1
... compressive yield stress, biaxial tensile yield stress and R-values more accura- tely than Modified Yld2000-2d and it would be considered as a new criterion for anisotropic asymmetric ...
23
Hardening phenomenon of Portland cement suspensions monitored by Vicat test, isothermal calorimetry and oscillatory rheometry Fenômeno de endurecimento de suspensões de cimento Portland monitorado por Vicat, calorimetria isotérmica e reometria oscilatória
... fied. Applying this method, the information about the consolidation is empirical and arbitrary, and no information about de chemical re- actions or about the development of microstructure were obtained. Monitoring the ...
11
Mat. Res. vol.12 número4
... the stress-strain curves we determined the occurrence of debonding process before yielding leading to stress ...Debonding stress was determined from stress-strain curves corresponding to ...
6
Experimental study and modeling of rheological and mechanical properties of NHL grouts
... Influence of water/binder ratio and superplasticizer dosage on grout compressive strength results at 28 days.. Isoresponse lines for yield stress (Pa) of NHL5 grouts with for wa[r] ...
49
Analysis of transformation plasticity in steel using a finite element method coupled with a phase field model.
... the yield stress of austenite and ferrite was evaluated in a consistent ...applied stress was fixed to 2 MPa. The yield stress of ferrite, which is assumed to be 80% of austenite ...
9
Effective selection criteria for screening drought tolerant recombinant inbred lines of sunflower
... were carried out when an amount of evaporated water (from Class 'A pan' evaporation) reached to 60 (well-watered), and 180 (water-stressed) mm, respectively ( POURTAGHI et al., 2011). Amount of irrigation were applied ...
14
Combining ability in common bean cultivars under drought stress
... Climate change in the coming decades will be dramatic, resulting in decreased water availability and increasing air temperature in the main areas of agricultural production in the world. In this context, the increased ...
7
Changes in Growth Variables and Potassium Content in Leaves of Black Barley in Response to NaCl
... water stress at the germination stage (Yasseen and Al-Omary, 1994), although it might develop gradual resistance with age during the vegetative and yield stages (Yasseen and Al-Maamari, ...osmotic ...
9
Tradução, adaptação e validação da Breastfeeding SelfEfficacy Scale : aplicação em gestantes
... of stress as one of these factors requires ...produce stress with the primary incidence of breast cancer among ...of stress according to categories, intensity and frequency of events, results ...
92
Mat. Res. vol.18 número4
... of physical properties - mainly stress-strain at yield and break - during the accelerated photoaging was ascribed to an increase of the carbonyl index. The ester bond along the PET homopolymer and copolymer ...
6
Physiological and biochemical traits as tools to screen sensitive and resistant varieties of tomatoes exposed to salt stress
... different stress factors, including salinity (Hernandez and Almansa, ...under stress conditions, the balance between generation and degradation of ROS is required, otherwise oxidative injuries may ...
12
Growth and yield of colored-fiber cotton grown under salt stress and nitrogen fertilization
... salt stress on plants, since it is essential to use saline waters in agriculture (Sousa et ...salt stress, because of its functions in plant metabolism, participating in the formation of organic compounds ...
6
FRUIT YIELD AND NUTRITIONAL CHARACTERISTICS OF SWEET PEPPER GROWN UNDER SALT STRESS IN HYDROPONIC SYSTEM
... (DUMAN, 2012). Salinity often inhibit absorption of potassium and calcium ions due to competition of sodium by absorption sites in the cell membrane, since Na is absorbed through K-specific transporters and low affinity ...
9
Glycine betaine and salicylic acid induced modification in productivity of two different cultivars of wheat grown under water stress
... water stress could be explained on the fact that, water stress impaired the utilization of carbohydrates during the vegetative growth and reduced the area of conductive canals (mainly phloem and xylem), so ...
18
A plastic collapse method for evaluating rotation capacity of full-restrained steel moment connections
... a yield line to connection deformation or rotation ...critical yield-line only if the amplitude of cyclic deformation is large enough to initiate local buckling of the beam, ...minimum yield strength ...
24
مدیریت و برنامه ریزی آبیاری دو رقم گندم تحت تنشهای شوری و خشکی
... Kalra, N., Chakraborty, D., Ramesh Kumar, P., Jolly, M., Sharma, P.K., 2007. An approach to bridging yield gaps, combining response to water and other resource inputs for wheat in northern India, using research ...
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