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Introduction In the ice engineering and Geo-science, the mechanical properties of ice are an important scientific subject, especially strength and deformation.
For large ice sheets and thick ice or snow layer, the confining pressure has significant influence on the mechanical properties of ice.
The influences of other factors such as specimen homogeneity, grain-size, density, temperature and the state of stress on mechanical properties of ice are also observed under this test (Assur, 1980).
These data should assist in the standardization of laboratory testing procedures for the determination of the mechanical properties of artificial ice.
As is evident from the figure, the stress-strain curves of artificial ice are significantly affected by confining pressures.

To ensure the safe operation of elevators, the guide rails, fishplates, brackets, bolts, clips have enough strength against to loads and forces which affect these elements.
In this study, shear tests are performed to examine mechanical properties of bolts and clips which are used guide rail anchor element.
All of the elevator guiding equipment has high strength and high factor of safety.
Therefore, shear tests are performed to examine mechanical properties of bolts and clips which are used as guide rail anchor element.
Conclusion Shear tests are performed to examine mechanical properties of bolts and clips which are used as guide rail anchor element.

The rotating velocity, pouring temperature, pouring velocity, and mold temperature are all critical process factors.
The finer grain structure contributes to improved mechanical properties.
The SEM images of aluminum bronze bushing showed average grain size which influences the mechanical properties like hardness, tensile strength and other properties.
Smaller grain size results in improving mechanical properties due to higher density of the grain boundaries [9, 10].
Nnuka, "Effects of Nickel on the Structure and Mechanical Properties of Aluminum Bronze (Cu-10wt% Al)

The relation between the weld nugget microstructure and mechanical properties was explored.
Fatigue performance is a very important source for understanding the mechanical properties of the spot-welded joint and has been a considerable factor in the vehicle body design [4].
The mechanical properties of the Docol MS1400steel [10].
Sample geometric factors such as sheet thickness, sample width, and spot weld diameter can influence the stress distribution surrounding the nugget, thus, it affects the HCF performance [1].
Macrostructure and Mechanical Properties.

Gypsum main problem is that the moisture has a negative effect on its mechanical properties.
Mechanical properties of the materials were measured on prisms 160 x 40 x 40 mm.
Physical properties.
Mechanical properties.
Water vapor transport properties.

Introduction Hydraulic tunnel is a common construction project in water project, so tunnel lining also become an important part of Hydraulic tunnel, which mainly undertake the pressure of cliffs and the pressure of internal and external water, rock collapse can be prevented and roughness can be lowed, generally speaking, concrete tunnel lining with pre-stressed has high ability to undertake internal water pressure. while with the reason of properties on concrete itself ,so cracks will be formed on lining concrete ,which not only destroy the concrete structure, but also affect useful life of tunnel, it also difficult to deal with those cracks, which will lead to increase cost and construction time, so research crack propagation mechanism of lining concrete has a great important significance to prevent and control the crack expansion[1].
Concrete Lining Crack Propagation Along Straight Line Assume that concrete lining crack is a ideal linear elasticity material, according to the principle of classical damage mechanics, crack propagation depends on the degree of stress concentration near crack tip (stress-intensity factor) and material properties (crack-resistance of material)[2] , not depends on integral stress state of structure, stress-intensity factor is a parameter to represent the strength degree of stress field on elastic crack tip zone, when the stress-intensity factor greater than the crack-resistance, the crack will expansion, when the stress-intensity factor smaller than the crack-resistance, the crack is in a stable state.
Concrete lining cracks of Hydraulic tunnels belong to open type crack which is equivalent to the most simple fracture in the classical damage mechanical, as shown in figure 1： Uniform pressure on the crack surface in the infinite board , according to the classical damage mechanical ,the stress intensity factor of crack tip is as follows: (1) Where σ is the homogeneous stress, a is the length of crack.
The stress intensity factor of concrete lining crack tip on Hydraulic tunnels is calculated with 1 type crack type in damage mechanical.
Conclusions According to the properties of concrete lining crack on the hydraulic pressure tunnel, the crack propagation is analyzed based on the1 type fracture in fracture mechanic and based on the fractal theory, which has practical engineering significance and can provide guidance for engineering designs.

DNSC subjected to high temperature lost its mechanical properties in a similar manner to that of high-strength concrete.
Moisture content and densification of microstructure are the main two factors governing the occurrence of explosive spalling [2, 4, 5].
Spalling tests and determination of residual mechanical properties were conducted on concrete specimens.
It should be pointed out that the exact factor affecting spalling occurrence is dense microstructure rather than strength grade of concrete.
DNSC subjected to high temperature lost its mechanical properties in a similar manner to that of high-strength concrete.

All materials used in the model were considered to be isotropic, homogeneous, and linearly elastic with their elastic properties listed in Table 1.
Mechanical properties of materials used in the 3D finite element models Materials Young’s Modulus [MPa] Poisson’s Ratio Cortical bone 14,000 0.30 Cancellous bone 1370 0.30 Titanium 110,000 0.35 3D finite element analysis was used for the quantitative evaluation of implant and surrounding bone stresses.
Standford, Micromotion and dynamic fatigue properties of dental implant – abutment interface, J.
Brunski, Biomechanical factors affecting the bone–dental implant inter- face, Clin.
Naert, The influence of bone mechanical properties and implant fixation upon bone loading around oral implants, Clin.

These problems seriously affect the product yield and stability of microdevice.
Besides, during pull-off test, other factors such as the misalignment of loading, the differences of samples sizes, the change of internal stress distribution because of adhesive solidification made the experimental data discrete and inaccurate, which add to the cost and difficulty of this test [10].
In pull-off test, mixed debond and other factors made the experimental data discrete and inaccurate.
Al-Turaif, Effect of nano TiO2 particle size on mechanical properties of cured epoxy resin, Prog.
Liu, Investigation of adhesion properties between SU-8 photoresist and stainless steel substrate, Micro Nano Lett. 6 (2011) 397-401

Determining the mechanical and tribological aspects of these materials is a key factor.
These voids negatively affect the final mechanical properties.
Tensile and bending tests were executed to find a quantitative correlation between voids and mechanical properties.
properties are not significantly influenced by voids [12].
Likewise tensile, also bending experiments showed the influence of the reinforcement on mechanical properties of the laminates.