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Fibers in concrete provide improved mechanical and physical properties of the material.
The deformation characteristics of a material are just as important as its strength properties.
PVA fiber properties are listed in Table 1.
In the future, the physical and mechanical properties of new HPFRC containing PVA fibers with and without nanosilica should be investigated in a more detailed way.
[7] ACI Committee 209, Report on Factors Affecting Shrinkage and Creep of Hardened Concrete (ACI 209.1R-05) American Concrete Institute, Farmington Hills, Michigan, USA, 2005

Choice of the way of tunnel excavation is crucial factor affecting deformation of surrounding rock, especially deal with complex geology as soft rock; extremely soft rock condition which strength is low, the capacity of self-stabilization is rather weak.
In fact division method mentioned in this article is three heading excavation method, which is compared with central heading full section and central heading step method by construction practice and finite element soft ware to explore the factor of affecting deformation of surrounding rock, the time effect of rock deformation [4, 5], put forward relative conclusion and offer references for similar projects.
Tunnel groundwater mainly gather in the weathered strong weathering layer, permeability coefficient K=0.1~0.6m/d, physical mechanical proprieties index of surrounding rock determined indoor test is shown in Table 1 Table.1 Physical and mechanical properties of surrounding rock material Bulk density λ(kg/m3) Poisson's ratio μ Modulus of elasticity E(Pa) Angle of internal friction Φ Cohesion C(Pa) 2400 0.3 96440000 25o 8000000 Monitor and analysis of surrounding rock deformation of tunnel The key point of deformation control of surrounding rock contains loosing stability of working face, loosing stability of vault, sink of arch foot and deformation of surrounding rock during tunnel excavation [6].
Analysis on construction factors of surrounding rock deformation in tunneling works [J].

Agile multiscale modelling of the thermo-mechanical processing of an aluminium alloy MACIOŁ Piotr1, a *, BUREAU Romain2,b ,POLETTI Cecilia2,c, SOMMITSCH Christof2,d WARCZOK Piotr3,e , KOZESCHNIK, Ernst3,f 1 AGH University of Science and Technology, Department of Applied Computer Science and Modelling, al.
The coupling between the scales allows the passing of material properties and material state between the independent fine and coarse models.
This methodology is applied here to model the microstructural evolution of a 6082 aluminium alloy through its thermo-mechanical processing.
The flow stress σ is then written as: σ=Mτath+τeff. (1) M is the Taylor factor and τath is the athermal shear stress, accounting for the elastic interaction of dislocations [13].
Because the modules are only defined by their output variables, it is possible to replace the constitutive submodels without affecting the global structure.

Thermodynamic Analysis for Organic Rankine Cycle Recovery System in Industrial Waste Heat Yang Xin Le1,a Dai Wen Zhi1,b Ren Chang Zai1,c 1Liaoning Technical University, School of Mechanical Engineering, Fuxin, Liaoning, 123000 ayxl_2003@sina.com, b 51761118 @qq.com, c615824882@qq.com Keywords: Industrial waste heat; ORC; Thermodynamic performance; R123 Abstract.
A calculation program was carried and two main factors were given and the influence rules of thermodynamic performance were analyzed.
In this paper , R123 was used as organic working fluid of ORC system in a industrial waste heat, ORC power system was designed, calculation and analysis of thermal performance to the ORC system under the conditions of different parameter, the rules of thermal efficiency and net work was gained and main factors was determined.
parameters/unit value Critical temperature /℃ 183.7 Critical pressure/MPa 3.29 Boiling point/℃ 16 Type of fluid dry fluid ODP 0 Tab.2 Characteristics of R123 Tab.1 Parameters of test system in power generation parameters/unit value Flux of flue gas/ Nm3/h 355000 Temperature of flue gas T/K 611 Working fluid R123 Efficiency of turbine/% 85 Efficiency of pump/% 85 Efficiency of generator /% 90 Efficiency of mechanical /% 95 The choice of working fluid The choice of Low boiling point organic working fluid is an important factor which affects system efficiency.
The temperature-entropy diagram and thermodynamic properties are shown in fig. 3 and tab. 2 [9].

These were found on fracture surfaces which served as an origin of creeping failure mechanism and are the most important factor for failure of this blade.
Three probable damage mechanisms affect turbine blades, these being mechanical damage through either creep or fatigue and high temperature corrosion .However, materials used for turbine blades must be suitable in these conditions.
The γ' phase shows an unusual property in that it tends to increase in strength with increasing temperature, at least at lower temperatures below about 973ºK.
Finally the presence of rafted γ' phase on the grain boundary under aging phenomena and diffuse elements such as S via surface crake are most important factor to failure of blade.
Ye, Microstructure and mechanical properties of cast Ni-base superalloy K44, Materials Science and Engineering A 374 (2004) 327-334 [5] M.

Thermoresistance is refers to the metal mechanical load resistance at high temperature [3].
Table 1 The activation energy of several elements Element Al Ti Ni Co Fe Cr Nb Ta Mo W Melting point (℃) 660 1668 1455 1495 1538 1857 2477 3017 2623 3422 heat-resistance temperature (℃) 200 ~ 300 500 ~ 600 700 ~ 800 700 ~ 800 900 ~ 1000 950 ~ 1050 1500 1800 activation energy (Kcal / molar) 38 58 60 65 59.7 (α-Fe) 67 (γ–Fe) 85 85 110 114 142 Due to the high temperature alloy has special physical properties and chemical properties, therefore, high temperature alloy cutting processability, worse than ordinary carbon steel and stainless steel.
High temperature alloy cutting temperature is very high, but it still has high mechanical properties (such as strength, hardness, etc.) at high temperatures.
Therefore, Mechanical properties of gap is reduced between the high temperature alloy workpiece and cutting tool materials at high temperature, and this tool will accelerate the heat adhesive wear.
These reasons lead to cutting tool mechanical wear large (behind the cutting tool abrasion maximum); it directly affects the cutting tools durability.

Shear strength, compressibility and permeability are the significant properties of soil.
A simple geometry for tire was modelled specifically for research use in order to understand the main features affecting the soil ground.
Tables 1 and 2 show the properties used for the natural soil, sand, and soft soil (clay) [1, 27] and tire [28].
The properties of rubber were considered for the simulated tire.
Wu, Thermo-mechanical properties prediction of Ni-reinforced Al2O3 composites using micro-mechanics based representative volume elements, Scientific Reports. 12(1) (2022) 11076

The modifications should not affect the reliability and the characteristics of the connections.
Several previous researches reported specific factors that affect the reliability and the performances of the solar cells.
In such conditions, the phase Ag3Sn was formed, which proved the formation of the bond, and no mechanical or electrical damages were revealed.
He identified the galvanic corrosion as being the main factor for degradation of the cells.
Zhong, et. al., Mechanical properties of intermetallic compounds in solder joints, 11th Int.

Typical stress-strain curves for steel tube Material Properties
The following is the analysis of the effects of other different factors on seismic performance of RCFST.
It can be found that n is an important factor to affect the skeleton curve shape from Fig.7.
Axial load ratio and steel ratio are two most critical factors which affect skeleton curves of RCFST.
Experimental study on the mechanical behavior of recycled aggregate coarse concrete-filled square steel tube column, 2010 International Conference on Mechanic Automation and Control Engineering (MACE), (2010)

Such 3D-printed parts are very lightweight and possess superior mechanical properties, which makes them a potential candidate for applications where a high strength-to-weight ratio is desired.
Initial experiments have shown that the flow rate affects the feeding of the filament and hence the pressure on the deposited layer leading to changes in the print properties.
Cheng, Influence of mixed isotropic fiber angles and hot press on the mechanical properties of 3D printed composites, Addit.
Advani, A review of factors that influence the fracture toughness of extrusion-based additively manufactured polymer and polymer composites, Addit.
Ghazali, Comparative study of the sensitivity of PLA, ABS, PEEK, and PETG’s mechanical properties to FDM printing process parameters, Cryst. 11(8) (2021) 995. doi: 10.3390/cryst11080995