Search results

Zhou G. [12-13] has studied the mechanical properties of sandwich panels in many aspects.
So, the impact force histories are greatly affected by the core thickness, and also, the core density and the face-sheets thickness do have some influence.
Through thickness properties are the most important for honeycomb energy absorption behavior, design of energy absorbing barrier structures and impact resistant aircraft sandwich panels.
The core density affects the dent depth: the less core density is likely to deflect due to lower stiffness.
For AFS and AFT, the curve is quite affected by the core thickness.

The properties of single crystal turbine blades alloy mainly depend on the microstructure, which especially affect the creep rupture properties and fatigue properties at high temperatures [10-18].
All the changes of the γ′ sizes and the size dispersion degrees are correlated with the thermodynamic and kinetic factors of γ′ forming.
Nickel-based superalloys for advanced turbine engines: chemistry, microstructure and properties.
Rotary bending high cycle fatigue properties of DD9 single crystal superalloy at 800°C.
Effect of etching on fatigue properties of DD6 single crystal superalloy.

For the connection stiffness and strength prediction, Eurocode has showed an inadequacy as it will be affected by the thin-walled behaviour of cold-formed steel in actual structural performance.
Eurocode 3 Stiffness Prediction Top-seat flange cleat connection is analysed in accordance to the mechanical model given in EC3-1-8.
With referring to Table 2, the strength prediction of Eurocode has shown a conservative value as the analysis is not included the strain hardening effect for cold-formed steel actual properties.
Hence, corrected factor will be suggested based on Eurocode stiffness prediction.

Besides, in previous research done by M.Casadio et.al, they ignored the damping factor by stating that it does not represent any physiological meaning [5].
However, Ishida and Agarwal was against that assumption in which they suggested that stiffness and damping properties can describe passive properties of muscle fibers and tendons [6, 7].
The change of angle over time will determine the way of ankle joint counteract against the oscillation of perturbation which is may results from evoking the intrinsic mechanical properties of ankle joint, and muscle contractile elements which triggered by the CNS.
Types of external disturbance somehow maybe affect the stiffness produced by the ankle joint.
Further investigations in determining estimation of stiffness pattern of hip joint and also muscle properties, in particular under different frequencies of translation perturbation are warranted in order to develop a reliable measurement system to measure balance ability and motor learning.

The target and the constraint function have different nonlinear properties.
Material properties of cable element: elastic modulus is MPa, density is kg/m3, tensile strength is 1860MPa, where design value may take 40%, it is 744MPa.
Material properties of strut element: elastic modulus is MPa, density is kg/m3, yield strength is 235MPa.
Penalty factor is 10.
Table 4 Comparing of optimal result of vaulted tensegrity structure parameter (mm) (m2) (m) (N) optimal result 36×3 2.908×10-3 1.042×10-3 8018 literature [7] 48.3×2.9 6.54×10-3 - 11949 Summary The main work of optimization design of tensegrity structure is that confirm rational distribution of prestress and components material under mechanical properties and constraints of structures.

The middle part of the settled melt was then transferred to the second pot via a mechanical pump in order to separate the cleaned melt from the sludge.
Variation of the properties of the ingots recovered from steering wheel scrap: (a) area percentage of inclusion particles; (b) tensile elongation to fracture; (c) corrosion rate under immersion in 3.5% NaCl aqueous solution. recovered ingots gradually increased in accordance with a decrease of their NMI content, which was coincident with the results in other literatures [8-9].
Therefore, another factor would affect the corrosion rate of the recovered ingots judging from the much lower NMI content in the present study than those of Wang’s case.
Wang, Effect of inclusion on service properties of GW103K magnesium alloy, Trans.
Yang, Effect of purification treatment on properties of Mg-Gd-Y-Zr alloy, Trans.

Another important factor is also the porosity of the catalyst.
Acidic properties were generated by aluminium doping and grafting with sulfonic groups.
The surface area, macropore volume, mesopore volume and acidic properties of the prepared catalysts have been tabulated in Table 1.
The experiments were carried out in order to establish the influence of water on the catalyst's activity, as it has been proved that water could have either negative or positive effect on methanol conversion depending on the catalyst's properties [11].
Pancrazzi, International Journal of Mechanical Engineering and Robotics Research 9 (2020), p. 1271.

Multilayer coatings combine the favorable properties of different materials in one system.
However, due to the different thermo-mechanical properties of the ceramic and metallic material, residual stresses arise.
Simultaneously, the geometry factor k and the information depth ξ changed.
Viera, Effect of ductile layers in mechanical behavior of TiAlN thin coatings, J.
Herper, Influence of multilayer designs on their residual stresses and mechanical properties, Applied Surface Science 257 (20) (2011) 8550-8557

The microseismic monmonitoring of hydrocarbon field development is a modern innovative technology for studying borehole space, migration processes of formation fluids arising from changes in initial formation conditions in a natural reservoir during the production of oil, gas, condensate and water, as well as physical and mechanical properties of rocks in situ, cracking processes during the interventions.
The surface observation achieves high operational efficiency and good horizontal localization accuracy, but the problems are noise from surface sources, inaccurate knowledge of the upper part of section (UPS), and the influence of weather and seasonal factors.
The development of hydraulic fracturing fractures is not purely "mechanical", but geostochastic ("probabilistic"). 11.
Each subsequent stage of MFHF affects the results of the previous stage, the state of the already existing zone of fracturing, up to a change in the direction of the fracture development.
Technological risks and success factors, Geophysics 1 (2010) 23-28

Murata 1, a 1 The University of Electro-Communications, Department of Mechanical Engineering and Intelligent Systems, Tokyo, 182-8585, Japan a moroi@mt.mce.uec.ac.jp Keywords: New extrusion method, Finite element method, Joining, Guide position, Tube wall thickness Abstract.
Guide position h, which is the distance from the guide top to die surface, is one of important factor for the control of metal flow.
Billet and sheet are elasto-plastic material and they obey Von Mises yield criterion, which was defined by the mechanical properties of 1100 Aluminum at 370 degree Celsius.
The mechanical properties are the same as the 3-dimensional analyses.
In above mention, it was clarified that metal flow is affected by the tube wall thickness more than the guide position.