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Mitchell: Materials Science and Engineering A, 263 (1999) 217-223
Malley: Materials and Design, 14(1993) 19-27
Hans: Metallurgical and Materials Transactions B, 28 (1997) 1001-1010
Friedrich: Materials Science Forum, 618 (2009) 93-96
Xu: Advanced Materials Research, 709 (2013) 313-319

Random Vibration Analysis of Spherical Anti-seismic Bearing YongBin Ma1,a,*, Bin Zhao1,b, BingDong Gu1,c 1 School of Science, Lanzhou University of Technology, Lanzhou 730050, P.R.
(8) Random Vibration Analysis of Anti-seismic Spherical Bearing With a consideration of bearing capability, rigidity, stability and ductility properties of structural members, proper materials should be used to highlight strength, rigidity, tensibility and energy consumption of structures as Table 1 shows.
Table 1 Material property of bearing Structure member Material Density Yield strength Tensile strength () Upper bracket plate ZG275-458H 7.85 275 485 Stainless steel slide plate 1Cr18Ni9Ti 7.85 200 550 Planar tetrafluoroplate polyfluortetraethylene 2.1～2.3 Steel-supported plate ZG270-500orQ345 7.85 270 500 Spherical tetrafluoro plate polyfluortetraethylene 2.1～2.3 lower bracket plate ZG275-458H 7.85 275 485 The actual structure for which is sophisticated that brings much difficulty to emulation.
Fig.3 records stress response curve of point B, during random vibration process appears maximum stress with a magnitude of 75MPa, which is far smaller than yield strength of materials.
Fourth avenue landslide during 1964 alaskan earthquake[J].Journal of Geotechnical and Geoenvironmantal Engineering, 1998, 124(2):99-109

This paper uses the Von-Mises yield rule to judge if some point inside the original isotropy material comes into the plastic flow status, thus the formula as follows: ―yield stress of material, －three directions main stress （i＝1, 2, 3） Use the Von-Mises fluxion rule to judge magnitude and direction of elastic strain.
Rigidity Symmetry Tool Fig1 FEA analysis model Material Characteristics.
The material is the aluminium alloy 7075 in common aviation use, whose material density is 2.78kg/m3, Poisson’s ratio equals to 0.35.
The material brings plastic fluxion at the edge when the chip forms.
[3] Dong yuehui and Ke yinglin: Journal of aviation, (2004) No.7.

The materials of cycloid disk and pin teeth are taken as GCr15SiMn [3].
The corresponding materials properties are elastic modulusand Poisson's ratio.
a) the whole b) the local Fig. 2 FEM model of cycloid disk and pin-wheel The decision of boundary condition Fig.3 Contact pairs of cycloid disk and pin-wheel The materials of cycloid disk and pin-wheel are same, so the contact actions between them are belong to the face to face contact in Flexible body-Flexible body.
Acknowledgements This work was financially supported by the national natural science funds "Based on the best tooth profile design theory FA transmission series research" (50875029).
Inverse Arch-shaped teeth profile and its optimization in a cycloid drive．in: Chinese journal of mechanical ngineering．2005, 41 (1):151-156 .In Chinese.

Layout Topology Optimization for Inner Stiffeners of Excavator's Boom Shengbin Wua , Xiaobao Liu b School of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China awushengbin2013@qq.com, b896929006@qq.com Keywords: excavator's boom; inner stiffeners; layout; topology optimization Abstract.
ESO seems to be based on the intuition that if the understressed material (elements) is removed from the design domain, an optimal, i.e. least-weight,topology will be reached[4].
Specific steps are as follows: (1) Under a given load and boundary conditions, define design area, known as the initial design, and mesh in the region with the finite element method; (2) Static analysis for the discrete structure; (3) Clear strength theory, for example, under plane stress state, Von Mises stress criterion can be used for isotropic materials to solve the stress value of each point, the unit's Von Mises stress and the Max unit's stress, if satisfied (2) Thus, the unit is in a low stress state and can be deleted from the structure.
Advances Materials Research, 2013(652- 654):1478-1481
Journal of Constructional Steel Research, 2008, 64(3): 305-311

Introduction Rapid prototyping manufacturing technology (RPM) appears with the development of CAD/CAM, computer numerical control technology, laser technology, material science and engineering technology, together with information technology, virtual with information technology, it has become the implementation of product design technology and ideal tool for an unprecedented process of technology integration and innovation[1,2].
In the manufacturing sector, various parts of the traditional production methods are forming method (Forming) and material removal process (Material Removing) the two categories[3].But in the late 1980s, it was suggested the use of the STL file format CAD data 3D solid models (layered cut profile),Obtain a two-dimensional data model sub levels.
Thus a new parts production methods-Material Increase Manufacturing appeared.
The process is: First by the 3D CAD software design needed parts or entity computer 3D surface model; Then according to the technological requirements of the layered, according to a certain thickness of the original 3D electronic model into 2D plane information (section), this is the process of discrete; Hierarchical data for further processing, after converted into machining parameters, generate NC code[4,5];Finally received by rapid prototyping machine code instructions, produce a series of aspects, and automatically put them straight up, get a three-dimensional physical entity.The process is as follows: Fig.1 The principle diagram of RPM Selective laser sintering (SLS) forming principle At present, there are many ways to the realization of the rapid prototyping technology and in accordance with the form and different kinds of materials used, the technology is relatively mature and widely used mainly has five types[6].
Journal of Mechanics 2010,4(4):79-86

Geometric and material properties.
The model structure is made of steel with Yield stress of the material sY = 290 Mpa, Young’s modulus: E = 2.1x105 Mpa and Poisson’s ratio g = 0.3. length of stiffener: L = 540mm, breadth of box girder: B = 720mm.
Table 1 indicates the dimensions and material properties of the model。
Conclusion A standardized procedure on the nonlinear finite element analysis of the ultimate strength of open box girders under bending moment and lateral pressure is presented, which includes material property, element type, initial deflections of the model, loads and boundary conditions, element type and mesh size.
Journal of Wuhan University of Technology Transportation Science, 2013

These finding may present a new feasible way for exploring modified LaFeO3-based sensing materials.
Acknowledgements The financial support through National Natural Science Fund Projects (51062017) is gratefully acknowledged.
Rishpon: Journal of Electroanalytical Chemistry, Vol. 491 (2000), p.182
Xin: Preparation and gas-sensing properties of SnO2 materials (M.D., YanShan University, China 2010), p43.
Zhang: Materials Letters, Vol. 7 (2008), No.1, p.4304.

Materials & Methods The study focus on the effect of titania deposited by hydrolysis at low temperature on apatite formation ability in Dulbecco's Modified Eagle Medium (DMEM).
Osaka, Journal of Materials Science: Materials in Medicine Vol 14(2003), p.1 [2] S.

Chi4, a 1 Dept. of Chemistry and 2Dept. of Materials Science, Hanseo University, Seosan, 352-820, Korea 3 Surface Engineering Group, Korea Institute of Machinery and Materials, Changwon, 641-010, Korea 4 School of Advanced Materials Engineering, Kookmin University, Seoul 136-702, Korea a cschi@kookmin.ac.kr Keywords: anodic TiO2, photocatalyst, electron acceptor, decomposition, aniline blue.
Story, International Journal of Environment and Pollution, 1(1991), p.125 [2] Y.