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Their applications are always related to structures and components subjected to variable loading and corrosive environment due to its excellent combination of mechanical properties and corrosion resistance.
There were some investigations available on fatigue properties for DSS 2507 [4,5,10,13], but not much seen in corrosive environment.
The mechanical properties at room temperature are ultimate tensile strength of 953 MPa, yield strength of 569 MPa , elongation of 27.8% and section area reduction of 74 %.
Only the grains at preferable orientation with the highest Schmid factor will deform first, leading to crack initiations.
Matsuoka, Gigacycle fatigue properties of 1800 MPa class spring steel.

Permeability coefficient is a measure of the permeability of the soil is an important physical mechanical properties.
Liu Luna,research on the coefficient of permeability of soil and cement soil[4].Xu Lanrong,analysis the mix indoor physical mechanical properties of the lime soil and cement soil.
Usually, join the greater the proportion of cement or lime hydrate, the waterproof properties is good,but lime content will affect the strength.
Loess and Two-ahs engineering properties research[J].
Calcareous-soil engineering properties of experimental study in Lan Zhou [J].

The same trend is revealed for the skin friction factor. 1.
All the fluid properties are assumed to be constant.
· Only the chemical reaction parameter affects the concentration profile and at the wall of the cylinder.
[10] A.K Hussein, S.H Hussain; Mixed convection through a Lid-driven air-filled square cavity with a hot wavy wall, International Journal of Mechanical and Materials Engineering, 5 2 (2010) 222-235
Al Zubi; MHD heat and mass transfer of an oscillatory flow over a vertical permeable plate in a porous medium with chemical reaction, Modern Mechanical Engineering, 8 (2018) 179-191

Introduction The quality of the chemical protection of wood against biological pests and abiotic factors depends on the effectiveness and application properties of preservative systems, on the wood structure and the input moisture content of wood, on the selected method of wood treatment, and last but not least, on the stability of the preservative chemicals in the wood and conditions, where the timber is located [1,2,3,4].
Evans, Mechanical properties of fire-retardant-treated plywood after cyclic temperature exposure, Forest Products J. 46 (1996) 64-71
Imamura, Combined effect of boron compounds and heat treatments on wood properties: Chemical and strength properties of wood, J Mater Process Technol. 198 (2008) 234-240
Winandy, Effects of fire retardant chemicals on the bending properties of wood at elevated temperatures, Forest Prod.
Hillis, Distribution, properties and formation of some wood extractives, Wood Sci Technol. 5 (1971) 272-289

°C U Velocity in x-direction. m/s V Velocity in y-direction. m/s W Enclosure Width. cm W Relaxation factor.
MATHEMATICAL FORMLATION The governing equations of the flow between the heated horizontal cylinder and the enclosure were based on the assumptions that the flow is Boussinesq, incompressible, constant fluid properties, no internal heat sources, laminar flow, and two-dimensional, Yunhua [14].
The corner edges that appear in these cylinders affect on the patterns.
The mass flowrate is largely affected by the enclosure opening size, figure (8).
Thesis, Mechanical Engineering, University of Massachusetts Amherst , 2003

The significant factors that contribute to shrinkage are identified from DOE analysis.
Properties of thermoplastic and mould insert material are shown in Table 1 and 2 respectively.
Physical and mechanical properties of ABS.
Properties of P20 mould steel.
Factors and levels for DOE.

The distance and compositions between functional groups, molecular weight, the degree of branching, and the nature of the charge of metal ion able to attach to the polymer backbone are very important factors that may have the effect on the polymer-metal ion interactions [5].
Among these host polymers, PMMA has good physical properties likes’ chemical resistance, weathering corrosion resistance, good insulating properties, high transparency and lightweight.
Jonghe, Transport properties of the solid polymer electrolyte system P(EO)nLiTFSI, J.
Sahu, Study on ionic conductivity and dielectric properties of PEO-based solid nanocomposite polymer electrolytes, Ionics 23 (2017) 2339–2350
George, Transport Properties of Polymeric Membranes, Elsevier, 2018, pp. 3–13

Moreover, the elastic property of the solid is taken into account by the striction terms in the free energy, which account for the interaction between the order parameters and deformation [7, 8].
Moreover, the elastic property of the solid is characterized by the deformation (strain) tensor uij(ρ, t).
They satisfy the fluctuation-dissipation condition (kB the Boltzmann constant) ⟨ϑa(ρ, t)ϑa(ρ', t')⟩ = 2kBTLaδ(ρ − ρ')δ(t − t'), (8) ⟨ϑb(ρ, t)ϑb(ρ', t')⟩ = −2kBTDb∇2ρ δ(ρ − ρ')δ(t − t'). (9) Finally, defects in a crystal such as dislocations and cracks give rise to internal strains in the solid affecting the mechanical equilibrium condition.
The other modified coefficients for a crack tip and an edge dislocation (see Fig. 2) are H1 = { H + αA sin θ/ρ, H + αB cos(θ/2)/ √ρ, r1 = { r0 − βA sin θ/ρ, edge dislocation r0 − βB cos(θ/2)/ √ρ, crack-tip (15) where A = (2b/π)M/Λ, B = 4KI(1 − 2ν)(1 + ν)/(2π)1/2E, b is the Burgers vector, KI the mode I stress intensity factor, ν Poisson's ratio, and E Young's modulus.
Fig. 2: Geometry of defects in (ρ, θ) plane.Structural Ordering In this note, we treat only the case of pure structural ordering in the presence of elastic defects in thermal-mechanical equilibrium.

The Product Innovation Alliance Dynamic Model of SMEs The flexible FGEM model is proposed based on six factors in this paper.
According to the influence factors and evaluation rule of innovation ability, the product innovation ability is taken as research object.
The six factors are scored according to product innovation competitive standard in this area.
The second index weight is gotten based on entropy method to reduce the influence for evaluation results by subjective factors in Eq. 2.
The equation of enterprise product innovation ability expresses the degree of enterprise product innovation ability, which affects the competitive advantage state and development trend.

Because of having excellent properties, as well as solving the problem which some traditional materials and structures can not solve, thus the smart structure become a hot research, and have been more widely used in the control field[2-4].
Therefore, the piezoelectric stack actuators have been widely used in the field of mechanical, electrical, and aerospace engineering.
The superposition method of the multi-group piezoelectric-patches in a limited voltage increases the output of the mechanical quantity, can be used, forming a series of mechanical quantity, the quantity of electricity in parallel, named the piezoelectric-stack.
Therefore, the mechanical correction factor is considered in calculating the axial stiffness generally.
Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering, 2001, 215 (G6): 355-361