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The factors can be concluded as three major parts: the environmental factors, material properties and construction factors.
Environmental factors Ambient relative humidity factors.
Currently, the environmental influences and the factors of material properties have had relatively mature researches.
A study on the Mechanics Properties of Carbonized concrete [J].
Main factors affecting the carbonation of concrete and steel corrosion factor test [J].Concrete, 1993, (2).

Wu 1,c 1 School of Mechanical Engineering, Nantong University, Jiangsu, Nantong 226019, P.R.
Jean[6-7] by using ray tracing (ray tracing) and the boundary element method to study the acoustic properties of a T sound barrier model, the barrier top is 0.185m x 0.125m thick cement particle board.
By category, change the sound absorption material structure and thickness, analysis the influence factors of top structure, optimize the structure of the sound barrier top, provides the important basis for the design of high efficiency barriers.
A comprehensive analysis of the above factors, the noise reduction performance, can have a better season climate conditions in the whole stiffness and stability, and the insertion loss performance experiment.
Experimental study on acoustic properties of a new type of noise barrier.

A set of isothermal frequency scanning where performed in order to assess the properties of the main relaxation process.
Harrison, The Dynamic Properties of Supercooled Liquids, Academic Press, New York (1976)
Ferry, Viscoelastic Properties of Polymers, 2nd edition, Wiley, New York (1970)
Dean, Determination of Dynamic Properties of Polymers and Composites, Halsted, New York (1978)
Ngai, Analogous Anomalous Properties of Relaxation and Diffusion in Different Complex Systems: Simultaneous Resolutions by the Coupling Model, in Mechanical Spectroscopy, ed. by L.

Foaming height and temperature curve of 25%wt composition One of the crucial factors for the formation of CFG is the sintering temperature, [58] has accounted that the sintering temperature has noticeable effects on the degree of oxidation of AIN(foaming agent) which indirectly also affects the pore structure and the properties of the foamed glasses.
Line Thomsen, “Crystallinity dependence of thermal and mechanical properties of glass-ceramic foams,” Journal of the European Ceramic Society, vol. 44, p. 7936–7942, June 2024
Wu, “Thermal and mechanical properties of a foamed glass-ceramic material produced from silicate wastes,” Sci.
François Méar, “Mechanical behaviour and thermal and electrical properties of foam glass,” Ceramics International, vol. 33, no. 4, pp. 543-550, May 2007
Arriagada, “ Understanding the effect of porosity on the mechanical and thermal performance of glass foam lightweight aggregates and the influence of production factors,,” Constr.

Also, a model to find the optimum input factors was shown. 2.
Input factors and levels No.
Factors Factor levels Level 1 Level 2 Level 3 1 Pulse on time Ton (ms) 6 14 - 2 Powder concentration Cp (g/l) 0 3 6 3 Pulse off time Toff (ms) 14 21 30 4 Pulse current IP (A) 4 8 12 5 Server voltage SV (V) 3 4 5 To investigate the influence of the input factors on the MRR, five input factors were selected.
The ANOVA of MRR and the effect of the input factors on the rate are shown in Table 4 and Figure 2.
Calculated and experimental results Objective properties Optimal process factors Calculation Experiment Error (%) Ton2/Cp3/Toff3/IP3/SV3 Ton2/Cp3/Toff3/IP3/SV3 Machining time (s) 0.0805 0.0889 10.43 5.

Among them, β-TCP has long been clinically used for bone grafts such as scaffolds, because it enables perfusion of cells and factors such as interconnected porosity and wide pore size distribution are essentials for bone regeneration, besides β-TCP has a chemical composition similar to the mineral phase of natural bone [4,5]; nevertheless it is necessary to improve its mechanical properties and lower the dissolution rate and resorbability in body fluids, which can assist in designing optimal biodegradable bone substitutes.
Dorozhkin, Calcium orthophosphates (CaPO4): occurrence and properties, Prog.
Chang, Bioactive glass promotes wound healing by affecting gap junction connexin 43 mediated endothelial cell behavior, Biomaterials. 84 (2016) 64–75
Aguilar, Determination of physical properties for β-TCP and chitosan biomaterial obtained on metallic 316L substrates, Mater.
Zanotto, Sol–gel synthesis, structure, sintering and properties of bioactive and inert nano-apatite–zirconia glass–ceramics, Ceram.

Through the analysis of factors caused by mold, the structure design, mold material, mold manufacturing and use to take certain measures, the production practice showed that die fatigue crack generation and extended time to prolong service life, obviously improved.
From these analysis, we can conclude that valve hot die with the main failure form is crack and wear, matrix flaking and pitting, cause mould crack is the main reason of the thermal fatigue, the main influence factors are as follows: (a) the change of the temperature; (b) high temperature oxidation brittle material and after nitride material brittleness; (c) valve material alloy content: alloy content is higher, the high temperature deformation resistance and friction, the greater the shape change, especially big circular arc position; (d) mechanical processing produce circular trace to ring crack generation have certain elements.
In addition, cause mould wear reason is valve material and mould surface friction force, the main influence factors are as follows: (a) valve material alloy content will affect the deformation resistance; (b) thermal fatigue crack; (c) the surface roughness of the mechanical processing; (d) high temperature corrosion; (e) between the Friction pair of lubrication condition.
Influence of the adhesive wear three factors, normal stress is determined by forging itself, and do not change.
To reduce the adhesive wear, must improve the mould surface hardness, reduce coefficient C (that is to say die material and valve material properties is large).

At the same time, increasing the squeeze force led to improved fatigue properties of the joints, specimens assembled using the rivets with the compensator showing fatigue lives consistently longer than joints with the round head rivets.
The fatigue crack nucleation location, crack path geometry and fatigue properties of a riveted lap joint depend on the integrated effect of a number of factors related to joint design and production as well as loading conditions.
The mechanical properties (0.2% yield stress = 291 MPa, ultimate strength = 433 MPa, elongation = 13%) and the fatigue crack growth behaviour of this material are similar to those of the western Al 2024-T3 alloy [3].
For Smax=80 MPa, somewhat higher kb factors of 1.25 and 0.9 are obtained for the above t-values [1].
Design, Analysis and properties, Springer, Dordrecht, 2012

Polymer matrices add carbon nanotubes have significantly improved mechanical and electrical properties at very low carbon nanotube loading.
That mechanical and electrical properties of aligned composites are better than those of random ones has been demonstrated in past studies.
Shear forces have been frequently used to align inclusions along the flow direction to reinforce mechanical properties.
Their properties are listed on Table 1.
The mechanical and electrical properties of the composites were measured at 25 ℃ and at a humidity of 50%.

acostanza@ing.uniroma2.it, belisa.tata@uniroma2.it,cdiegocio92@gmail.com Keywords: Explosion Welding, Dissimilar joining welding, Mechanical properties Abstract.
Demir, An investigation of mechanical and metallurgical properties of explosive welded aluminum-dual phase steel, Mater.
Zhang, Microstructure and mechanical properties of Cp-Ti/X65 bimetallic sheets fabricated by explosive welding and hot rolling, Mater.
Demir, An investigation of mechanical and metallurgical properties of explosive welded aluminium–dual phase steel, Mater.
Pavliukova, Structural and mechanical properties of metallic–intermetallic laminate composites produced by explosive welding and annealing, Mater.