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At present researches on mechanical properties of structural brackets still shallow, study its static mechanical properties, stress and failure mechanism needs further.
Dimensional numerical simulation Mechanical properties of wood.
Wood as the main timber brackets, the natural heterogeneity makes the wood physical and mechanical properties and other building materials compared to present the obvious anisotropic.
Factors tissue structure of wood a one-way distribution of wood fiber bundle-like cell timber determines the anisotropy.
Table1 Mechanical properties of Northeast China red pine Modulus of elasticity (Mpa) Modulus of shear (Mpa) Poisson's ratio E1 16272 G12 1172 μ12 0.42 E2 1103 G13 676 μ13 0.51 E3 573 G23 66 μ23 0.68 According to the mechanical properties of wood, In this paper, ABAQUS finite element software for the numerical analysis of elastic brackets stripes compression state, Table 1 shows the mechanical properties of wood input software.

The magnitude of the exciting force affects directly the speed and depth of drilling.
ADAMS Software Profile ADAMS (Automatic Dynamic Analysis of Mechanical System) software is the most excellent dynamic simulation software of mechanical system, which is developed by American Mechanical Dynamics Inc.
According to the focus of this analysis, we can ignore some minor factors and retain some important factors.
Give each part of the top drive system corresponding materials and properties after the model is imported.
According to the material properties and volume of the three-dimensional model, quality properties are automatically generated.

The kinetic indentation of materials in order to determine their mechanical properties was introduced by S.I.
The 40 factors values are received for, and .
Using the double «cave-in » method, we have: , (26) where ; (27) where , are factors [13]; .
The introduced parameter has good informativity because it describes the material hardening in a wide range of the mechanical properties values and, consequently, can be used for engineering calculations of hardening materials elastoplastic deformation.
Influence of penetration depth and mechanical properties on contact radius determination for spherical indentation.

The composites were tested for their flexural properties, impact behaviour, dynamic mechanical properties and fracture surface analysis.
Earlier, a lot of studies were conducted on the mechanical properties of fly ash filled polymer matrix composites [4].
The overall predominance of one factor over another might have controlled the change in properties.
The flexural and Impact properties showed improvement in the mechanical properties of the composites with respect to uncoated FA/RPP composites.
Misra, Static and dynamic mechanical properties of vinylester resin matrix composites filled with fly ash, Macromol.

It is demonstrated that MIF is the most efficient method of DMNs allowing one to obtain the bulkiest nanostructured samples with enhanced mechanical properties.
The mechanical properties of MIF-nanostructured materials will be presented with an emphasis on the strength and temperature of superplastic deformation and perspectives of applications of these materials will be shortly discussed.
These stages exist at any temperature of deformation, any stacking fault energy, phase composition of material; all these factors affect the strain levels dividing the three stages.
The mechanical properties of nanostructured materials processed by ECAP (followed by extrusion) and MIF are quite similar.
High-temperature mechanical properties of MIF-processed materials are also similar to those of ECAP-ed ones.

In previous studies, the stress concentration factor for single row riveted lap joints was found to be approximately 6.1, and the stress concentration factor for sealed riveted lap joints was approximately 5.2 for a 180 micron thick sealant layer.
In this study, panel thickness, adhesive stiffness and adhesive layer thickness were varied parametrically in FEA analyses to determine their affects on the joints.
In previous studies, the stress concentration factor for single row riveted lap joints was found to be approximately 6.1, and the stress concentration factor for sealed riveted lap joints was approximately 5.2 for a 180 micron thick sealant layer [7].
The equations used for converting the stresses and strains in the solid elements to forces and displacements to define the spring element properties are presented below
Material properties of the panels and rivet are summarized in Table 1.

Thermal properties of PASAs were investigated by TGA.
Thermal properties of wholly Aromatic PASAs were investigated by TGA.
The stoichiometric balance of the two monomers and the temperature are the two crucial factors affecting the molecular weight of the products formed by polycondensation.
Thermal properties.
The thermal properties of PASAs were evaluated by TGA.

China 3 Department of Mechanical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan ahub1616@163.com, bgoraka@chiba-u.jp, cninghuiming@chiba-u.jp, dhuning@faculty.chiba-u.jp Keywords: Piezoelectric property, Multi-walled carbon nanotube, Nanocomposite, Poly (vinylidene fluoride) Abstract.
However, on account of their low electromechanical coupling factor and relatively low generated voltage or force, the potential of piezoelectric sensor/actuator applications utilizing PVDF is still limited.
It is well-known that carbon nanotubes (CNTs) possess a unique atomic structure which leads to their excellent mechanical, thermal and electrical properties [4].
Many studies indicated that even a little addition of CNTs in polymer matrix may lead to remarkable improvements in its physical and chemical properties.
Then, the piezoelectric property of this nanocomposite film, which was affected by the MWCNT addition and the drawing and poling processes, were studied through a series of vibration tests.

Mechanical properties of Mg alloy is the important requirment for its application and thus many foundry processing have been applied to obtain the required properties[1,2].
As shown in fig.3, the size of spherical grain is up to 90μm and the shape factor is about 1.7.
a b c d Fig.2 Partial remelting microstructures of AZ31 billets with different isothermal holding time at 595°C: (a) 15; (b)30; (c) 60; (d) 90min Fig.3 Size and shape factor of solid particles with different holding time at 595°C Heating temperature is regarded to be mainly affect the solid liquid faction of a semisolid microstructure in partially remelting.
Moreover, this parameter is expected to influence the energy and diffusion ability of solute atoms, and thus affect the primary particle size and shape factor.
However, with the prolonged holding time the obvious increase of particle size and shape factor also occurred.

Introduction Contemporary machine industry sets high requirements for mechanical and operational properties of machine parts.
Fig. 2 – Mechanical properties of TRIP 700 A standards solver of software package Abaqus 6.14-1 was used for the calculations.
All this entails aggregation of lightly deformed grains by means of other grains, and deterioration of steel mechanical properties later on.
On the basis of simulation results it has been concluded that position and orientation of the retained austenite grains are ones of the important factors, which affect the transformation.
In practice it can be useful for obtaining of higher strength with uniform distribution of the mechanical properties in the rod cross section.