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The main influence factor of the attrition rate of the TBM cutter is rock abrastivity.
(2)Many factors affect the wear value of rocks, mainly related to the nature of the rock itself .there are the mineral composition of rocks, mineral hardness, particle shape and size of mineral particles link between power, rock joint fracture of the degree of development, degree of weathering, the rock itself, in which the integrity and stress environment.
Nature of the rocks themselves is also the factors that affect the physical and mechanical indexes of rock directly, and are the most important factor.
The higher the value of physical and mechanical properties of rock, the greater of the rock abrasion value .Instead, the content of the lower hardness of the rock minerals (such as biotitic, muscovite, calcite, chlorite, etc.) was higher, the lower of the rock physical and mechanical properties value, and the value of the rock abrasion is smaller
(3)Genetic types of rocks, rock environment, structural types as well as the testing conditions (including the loading frequency, the choice of surface scratches, scratches rate, and needle measurement error) are factors affecting the rock abrasion value, need to be further studied.

The mechanical responses of granular materials are affected significantly by the properties of the individual particle.
The mechanical properties of granular materials are affected significantly by the particle shape, surface characteristc of the individual particle and consolidation stress of the assembly.
Therefore, it’s vital to establish the link of macromechanical properties to fabrics, which has attracted more and more attention recently[1][6].
The friction angle can be computed by the relationship between friction factor and friction angle (Scott 1963)
Influence of micro parameters of sandy soil on its macro properties.

It can improve the overall carrying capacity of the pavement without affecting its water permeability and retention.
Meanwhile, it should have good mechanical properties.
Therefore, through experiments and numerical analysis of water permeability and retention and mechanical properties of the ATPB drainage base course, this research explores the influencing factors and changing patterns of the water permeability and retention and mechanical properties of the asphalt treated permeable gravels, finding out the key factors that balance their contradictions and the solutions to the decreasing bearing capacity of the structure caused by the over-large void ratio, which is vital to the design of ATPB.
Influence of the Void Ratio on Mechanical Properties of ATPB Drainage Base Course.
When used as a permeable base course, ATPB’s mechanical properties will be affected by the rain stored in the base course.

With the help of finite element numerical simulation and Latin hypercube sampling method, the uncertainty of mechanical properties at tip of EAC in one-inch compact tension specimen is simulated and analyzed in this study.
The results show that the randomness of material properties and load markedly affect the uncertainty of micro-mechanical state.
The mean of properties of alloy 600 and the oxide film are shown in Table 1.
E1, ν1, σ01 are the material properties of the nickel-based alloy, E2, ν2, σ02 are the material properties of the oxide film, P is the load.
Research on the plane multiple cracks stress intensity factors based on stochastic finite element method.

The influence of factors, including different raw material ratio, drying temperature, concentration of glycerol and degassing time, on properties of chitosan edible film was studied.
Properties of film affected by temperature.
Properties of film affected by glycerol.
Conclusion and prospect This experiment studied the factors affecting chitosan film making.
Therefore, the factors on films property during film making are needed to do more in-depth research.

Research new waterproof agent of the particleboard Zhao yan Beihua University, Jilin, 1320132 Keywords: Non wood shavings; Molded sheet; Process parameters; Mechanical properties Abstract: Modern society,with the rapid development of economy,people living standard increasing, for the plate demand continues to grow.
The corresponding optimum mechanical properties: the absorbing water thickness expansion rate (2H ) 9.76%, inner strength, bend strength of17.49Mpa,0.45MPa.
2.2 Orthogonal design In the packing sheet repression experiment, due to take into account the amount of glue, pressing temperature, pressing time three factors, if we make a three experimental factors and three levels, according to a comprehensive test requirements shall be 3×3 = 27 combination of experimental and has not yet considered the number of repetitions of each combination, and therefore adopt high efficiency, quick and economical method of orthogonal experimental design to volume sizing, pressing temperature, pressing time for three factors are the main factors, 3 levels L9 (34) orthogonal experiment, bit-level factors are shown in Table 2-2.
Mechanical properties of the corresponding value: 7.40% water swelling, internal bond strength 0.46MPa.
Effect of wood particle size on the properties of wood/polypropylene composite I: Mechanical properties .Chinese forestry science and technology,2002,1 [8] Stark,N,M;Berger,M,J.Investigation of species effects in an injection-molding-grade, wood-filled polypropylene.The fourth international conference on woodfiber-plastic composites,1997,13(1):19~25 [9] Inge Johansson,Tobias Karlsson,Roland Wimmerstedt.

Babarsari Kotak Pos 6101 YKBB Yogyakarta 55281 ariswidyo.nugroho@umy.ac.id a Keywords: SS 304, plasma nitrocarburizing, mechanical properties, corrosion properties.
In this study, the mechanical properties and corrosion properties of plasma nitrocarburized 304 stainless steel at various processing times was investigated.
The microstructure, mechanical and corrosion properties of the treated austenitic stainless steel were correlated to the plasma processing time.
Another significant factor that affects the surface hardness is the formation of the expanded austenite phase with different lattice expansion.
AISI 304 nitrocarburized at low temperature: Mechanical and tribological properties.

For mechanical and metallurgical bonding with each other of workpieces, it can reduce the dependent on material properties.
The main factors on combustion process are as follows: FIG 1.
Effect curves of CaF2 (a) effect on the melting point (b) effect on the reaction temperature 5) The alkalinity of welding slag is the main factor affecting the removal performance of welding slag.
Heat treatment effects on dielectric properties of Hexaferrite prepared by an SHS route.
Since the spread of hand-welded weld metal properties.

Characteristics of ABS and PLA polymers 2 The 3D Printing Parameters Impact: Influencing Parameters on Mechanical Properties The various factors and parameters that influence the quality and mechanical properties of parts produced using Fused Filament Fabrication (FFF) machines are illustrates in Fig. 5 The relationships between concept models, raw material, environmental factors, build orientation, process parameters, and their collective impact on the final product are depicted in the flow chart.
Figure 5 provides a comprehensive overview of the various factors that influence the quality and mechanical properties of parts produced using FFF machines.
Various factors affecting the quality and mechanical performance of FFF technology components.
Galeja et al. [38] reveal the significant impact of raster angle on FFF-printed SCFR-ABS mechanical properties, with even a 15-degree change affecting tensile strength and stiffness by 22% and 35%, respectively.
However, this freedom comes with a complex ballet of factors that determine the final properties of the printed part.

Mechanical Properties of Rebar HRB400 after Corrosion Ping Li a, Ying Wang Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China aeappol@163.com Key Words: Rebar HRB400, Corrosion rate, Corrosion behavior, Mechanical properties Abstract: The corrosion behavior of rebar HRB400 in 3.5 wt.% NaCl solution was investigated, and the tensile mechanical properties after corrosion were tested.
The research on the corrosion of rebar and its effect on the mechanical properties of rebar is increasing [8-10].
The samples (Φ14mm ×450mm) are used for corrosion rate measure and mechanical properties tests.
And then the corrosion rate calculation and mechanical properties tests are carried out.
These will affect the strength properties of rebar.