Strain-rate sensitivity
Strain-rate sensitivity of foam materials: A numerical study using 3D image-based finite element model
... the rate dependence of cell-wall material that dominates the strain-rate effect of the foam ...higher strain-rate sensitivity than that of the cell-wall material at low and ...
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Finite Element Simulation with Coupled Thermo Mechanical Analysis of Superplastic Dieless Tube Drawing Considering Strain Rate Sensitivity
... the strain rate at a high ...the strain rate sensitivity of the flow stress is very ...the strain hardening dependence and the strain rate sensitivity into ...
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Numerical analysis of strain rate sensitivity in ball indentation on cohesive powder Beds
... processes. Strain rate is particularly of great importance since in the shear deformation of powder beds beyond the quasi-static regime the shear stress is dependent on the strain rate (Tardos ...
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Ion Irradiation Effect on Strain Rate Sensitivity of Nanoindentation Hardness of W Single Crystal
... the strain rate sensitivity (SRS) is large in bcc W, the effect of irradiation on SRS is an important issue to understand mate- rial response to off-normal plasma operation that may induce ...
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Estimation of Thermal Fatigue Resistances of Sn Ag and Sn Ag Cu Lead Free Solders Using Strain Rate Sensitivity Index
... the strain rate sensitivities of several Sn–Ag and Sn–Ag–Cu lead-free solders by the strain rate change test and also aimed to estimate their thermal fatigue resistances by the strain ...
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Determination of strain rate sensitivity of AL and SA516 Gr. 70 CS upto 400 C using SHPB
... High strain rate tests of Al and SA516 ...the strain rate sensitivity of material at strain rates ranging from 500s -1 to 3000s -1 and temperature ranging from room temperature ...
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Strain Rate Sensitivity of Superplastic Inconel 718
... the strain rate is reduced to 10 4 s 1 or ...the strain rate sensitivity (m 0:5) and therefore for the stability of the flow of fine- grained ‘‘true’’ superplastic ...
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Strain rate sensitivity of autoclaved aerated concrete from quasi-static regime to shock loading
... The investigated strain rate range from 10 − 4 s − 1 in quasi-static condition up to shock loading higher than 6.10 3 s − 1 using reverse plate impact configuration. Results in un-confin[r] ...
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Experimental analysis and modelling of the strain-rate sensitivity of sheet niobium
... to strain-rate: hence the quality and reliability of the FE results strongly depend by the definition of an appropriate strain-rate dependent flow stress material ...different ...
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Temperature and Strain Rate Dependence of Flow Stress in Severely Deformed Copper by Accumulative Roll Bonding
... and strain rate jump tests have been carried out at low temperatures (77 K room temperature (RT)) using pure Cu specimens that were severely deformed by accumulative roll bonding ...the strain ...
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Simulation of the material softening during hot metal forming
... true strain is assumed), for tensile tests this value can be slightly more or less depending on the ductility and strain rate sensitivity of the ...plastic strain can reach the value of ...
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Strain-rate dependence for Ni/Al hybrid foams
... high strain rates, the struts will first be stretched before they fail by ...less strain-rate sensitive for small coating ...thicknesses, rate effects occur. This rate dependency is ...
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Studies on titanium alloys for aerospace application
... Superplastic forming (SPF) of titanium alloys offers several advantages to the aerospace industry, mainly related to the possibility of producing complex shaped parts in one operation. In superplastic forming, higher ...
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Effects of Temperature and Strain Rate on Plastic Deformation of Ultrafine Grained Copper Prepared by Equal Channel Angular Pressing
... 3.3 Strain-rate sensitivity and activation volume The stress dependence of strain-rate sensitivity m of the 8-pass ECAPed specimens calculated from ...the strain- ...
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Experimentally and Numerical Study on Deep Drawing Process for Magnesium Alloy Sheet at Elevated Temperatures
... and strain rate sensitivity of the magnesium alloy sheets on flow stress as well as determine the constitutive behavior of the sheets, uniaxial tensile tests at different strain rates, rolling ...
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Strain Capacities Limits of Wrought Magnesium Alloys: Tension vs Expansion
... Lightening structure is one of the goals of many fields of research. As a result, magnesium alloys are studied due to their low density. However, one drawback of these alloys is their low formability at room temperature ...
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Tensile Properties at Room Temperature to 823 K of Mg 4Y 3RE Alloy
... The strain rate sensitivity at 723–823 K was about ...high strain rate sensitivity due to the glide-controlled dislocation ...
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Analysis of the dynamics of the FT4 powder rheometer
... The standard downward test procedure of the FT4 Powder Rheome- ter was carried out experimentally and also computationally simulated by the DEM. The simulations using a linear elasto-plastic and adhesive contact model ...
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Application of the dynamic characterization of metals in automotive industry
... high strain rates. Generally, by increasing the strain rate many materials show hardening effect, a decrease in failure strain and an increase in ...the strain rate ...
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Dynamic Mechanical Response and Microstructural Evolution of High Strength Aluminum Scandium (Al Sc) Alloy
... the strain rate. As the strain rate is increased, the flow stress increases and the fracture strain ...hardening rate with increasing strain rate is observed due to ...
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