... in the homogenization process, the plastic flow acting on the microscopic truss members gives rise to extend the elastic domain of the analytical stress function derived from homogenize constitutive equations at the macroscale level. Analytical stress predictions show excellent agreements with the results obtained from...

... the development of a transversely elastic response as a result of uniaxial compression. 14 04 2010 17 03 2011 23 06 2011 23 06 2011 elasticity glass transition plastic flow polymers ultrasonic measurement polycarbonate anisotropy moduli plastic strain temperature...

...–Mechanical Modeling of Polymers and Composites,” Polym. Sci. Ser. A, 48, pp. 1004–1013) of semicrystalline polymers. It is supposed that increase in the interlamellar nanovoid volume fraction results in speeding-up the plastic flow rate while decreasing cavitation rate. Consequently, a proper fitting...

...   s − 1 . In most cases, duplicate specimens were tested. 21 09 2010 20 01 2011 22 03 2011 22 03 2011 annealing ductility elongation plastic flow pressing softening steel stress-strain relations tensile testing thermal analysis yield strength...

... 03 12 2010 03 12 2010 dislocation interactions metallic thin films plastic flow plasticity surface energy work hardening yield strength size effect interfaces surface energy temperature thin film Plasticity in heterogeneous materials with small volumes (e.g...

... , “ The Mechanical Threshold Stress Model for Various Tempers of AISI 4340 Steel ,” Int. J. Solids Struct. 0020-7683 , 44 ( 3–4 ), pp. 834 – 859 . 10.1016/j.ijsolstr.2006.05.022 17 03 2009 08 09 2009 18 02 2010 18 02 2010 copper melting plastic flow tantalum...

... stress field evolution. Notably, relaxation has been correctly simulated in the low-cycle fatigue regime and imputed to plastic flow in compression when the superposition of compressive residual and bending stresses exceeds the local cyclic yield strength of the material. Conversely, the residual stress...

... nonincremental interaction law ellipsoidal inclusion elasto-inelastic behavior elasticity grain size hardening plastic flow SCF calculations stress-strain relations Sachs , G. , 1928 , “ Zur Ableitung einer Fliess Bedingung ,” Z. Ver. Dtsch. Ing. 0341-7255 , 72 , pp. 734 – 736...

.... 1175 – 1180 . Golovashchenko , A. K. , 2004 , Incremental Forming of Aluminum Alloys , The Minerals, Metals & Materials Society , North Carolina . 12 05 2008 09 02 2009 09 09 2009 aluminium alloys automotive materials deformation ductility plastic flow...

... , The Hardness of Metals , Clarendon , Oxford, UK . Sundararajan , G. , and Tirupataiah , Y. , 2006 , “ The Localization of Plastic Flow Under Dynamic Indentation Conditions: I. Experimental Results ,” Acta Mater. 1359-6454 , 54 , pp. 565 – 575 . 10.1016/j.actamat.2005.09.022...

...Russell J. McDonald; Christos Efstathiou; Peter Kurath The purpose of this work is to explore nonuniform plastic flow at small length- and time-scales. Pure single crystal copper tensile specimens were pulled along the [ 6 ¯ 5 6 ] crystal axis at three nominal strain-rates: 0.01%/s, 0.04%/s...

... ), pp. 1865 – 1875 . 24 06 2008 04 12 2008 29 05 2009 aluminium alloys compressive testing deformation high-temperature effects hot rolling plastic flow work hardening The use of aluminum alloys in engineering applications is routine. Many of these have complex...

..., but there is a threshold for embedded fiber volume fraction at specific parameters, over which the plastic flow and friction may be insufficient to have a strong bond at foil/foil interfaces between fibers. The study also showed that base metal thickness did not have significant influence on the interfacial strength...

..., and conical). The indentation stress-displacement curve at large strains is linear as a result of the steady-state plastic flow, from which the mean indentation pressure, a measure of yield strength, can be readily extrapolated. The indentation stress-displacement response is independent of the indenter...

... than that of the DC material. 29 06 2007 06 12 2007 22 05 2008 aluminium alloys fracture mechanical testing plastic flow shear strength sheet materials stress-strain relations The mechanical behavior of aluminum alloys at large strain is of considerable interest...

... 2008 13 03 2008 aluminium alloys copper alloys cracks magnesium alloys plastic flow point defects slip thermomechanical treatment voids (solid) X-ray scattering aluminum Guinier radius nanovoids quenching SAXS strain rate sensitivity thermally activated deformation...

.... For general material types, it is shown that it is possible to have a state of spreading plastic flow, but as the elastic-plastic boundary advances, the conditions for yielding on it can change over to conditions for brittle failure because of the evolving stress state. The general theory is of a three...

... tool steel cold working plastic flow yield strength elastic moduli When deforming metals, the force required to maintain material flow controls many process parameters, such as: tooling strength, equipment size, and energy expenditure; ultimately affecting overall part cost. This force...

... in this paper. 21 04 2006 26 12 2006 stainless steel mechanical testing aluminium pipes plastic flow stress-strain relations finite element analysis tensile testing tube bulge test anisotropic effect stress-strain relations finite element simulation Hydroforming...

...Wei Tong; Nian Zhang Temporal and spatial characteristics of serrated plastic flow or the so-called Portevin-Le Chatelier (PLC) deformation bands in a commercial Al - 2.5 % Mg sheet metal due to dynamic strain aging effects were investigated experimentally under quasi-static uniaxial tension...