... echnology . 26 02 2021 26 05 2021 28 05 2021 30 07 2021 selective laser melting additive manufacturing melt pool geometry yield strength materials processing mechanical behavior metals polymers ceramics intermetallics and their composites Selective laser...

... lower yield strength, smaller strain hardening ratio, or higher charging rate would cause greater swelling anisotropy. The numerical results are compared with the experimental observation of an SnO 2 nanowire (Huang et al., 2011, “In Situ Observation of the Electrochemical Lithiation of a Single SnO 2...

... of subject component indicate that the stress levels due to fatigue loads are well below the static yield strength and endurance limit of AISI 4140 steel; however, the notches present in the form of flash or partition lines of the forged beams have initiated the fatigue failures of the beams. Typical hot...

...Jianfeng Jin; Hanchen Huang This paper reports an anomaly in the yield strength of dislocation interacting with stacking fault tetrahedra (SFT) in Cu, reveals atomic mechanisms that are responsible for the anomaly, and further shows the thermodynamic driving force for the atomic mechanisms...

... 06 12 2011 06 12 2011 crystal structure ductility elasticity texture yield strength Three fundamental and interrelated design parameters affect yielding in materials; they are (1) part geometry, (2) material microstructure, and (3) boundary conditions. In typical design...

... polymers shear modulus shear strength yield strength flexible design honeycomb auxetic cellular solids effective properties Two dimensional prismatic cellular materials of periodic meso-structures are called honeycombs. The hexagonal versions of such meso-structures are cellular...

...) apparatus in the strain rate range of 54–164/s. Uncertainty analysis for the experimental results is presented. Johnson–Cook material constitutive model was applied to predict the tensile yield strength of the tested materials at different strain rates. It is observed that the tensile yield strength...

... and athermal components of the flow stresses. Finally, a thermal activation analysis was performed. annealing ductility elongation plastic flow pressing softening steel stress-strain relations tensile testing thermal analysis yield strength rephosphorized interstitial free steel tensile...

... and nanosystems. In this paper, the framework of higher-order strain gradient plasticity theory with interfacial energy effect is used to investigate the coupling of interfacial energy with temperature and how it affects the initial yield strength (i.e., onset of plasticity) and the strain hardening rates...

.... Characterization studies conducted on the extruded samples revealed that the increasing presence of SiC particles at nanolength scale did not affect the 0.2% yield strength but increased ultimate tensile strength and work of fracture. Most interestingly, the presence of SiC nanoparticles increased the uniform...

... to validate the numerical models and assess the crankshaft mechanical parameters such as the yield strength and the fatigue limit. An experimental innovative method applied to evaluate the crankshaft residual stresses by means of strain measurements under bending was also developed. This methodology proved...

... was compared with that from baseline (undeformed) Mg AZ31B in a fully recrystallized condition (O-temper). Due to its importance in finite element simulations, particular emphasis was placed on the variation of postformed yield strength with specimen thickness and average grain size. Finally, we compute local...

...D. Vangi; S. Tellini When measuring residual stresses using the hole-drilling strain-gauge method, plasticity effects arise if the residual stress level exceeds about 60% of the material yield strength. In this case the classical methods, which are based on the linear elastic material behavior, do...

... history, the shot-peened residual stresses may change due to thermal exposure, creep, and cyclic loading. This paper describes a methodical approach for characterizing and modeling residual stress relaxation under elevated temperature loading, near and above the monotonic yield strength of nickel-base...

..., 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...

.... The stress-strain curve for Al 6061-T6 is shown in Fig. 3 . Mechanical properties of the sample material (Al 6061-T6) Material Yield strength (MPa) Ultimate tensile strength (MPa) Young’s modulus E (GPa) Poisson’s ratio ν Al6061-T6 270 295 72 0.3 True strain...

...%, 42%, and 35% of yield strength in samples for peened at nozzle traveling velocities of 0.05 mm ∕ s , 0.10 mm ∕ s , and 0.15 mm ∕ s , respectively. 25 12 2006 02 07 2007 aluminium alloys cavitation hardness internal stresses jets nozzles plastic deformation shot peening X-ray...

...Mohamed N.A. Nasr; E.-G. Ng; M. A. Elbestawi Finite element analysis was used in the current study to examine the effects of strain hardening and initial yield strength of workpiece material on machining-induced residual stresses (RS). An arbitrary–Lagrangian–Eulerian finite element model was built...

..., the material’s yield strength, flow stress, and elastic modulus are decreased; strain weakening occurs; and the total energy of deformation is decreased. These changes in the engineering stress-strain behavior occurred in all of the materials tested and are much greater than can be accounted for by resistive...

... increases in hardness, 0.2% yield strength and ultimate tensile strength, but a significant increase in ductility and work of fracture of magnesium. The fracture mode was changed from brittle for pure Mg to mix ductile and intergranular in the case of nanocomposites. Accordingly, the primary aim...