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The vibrations generate heat at the joint interface of the parts being welded, resulting in melting of the thermoplastic materials and weld formation after cooling.
Experimental Procedure Many properties of materials being welded affect the weldability of the parts.
Thermoplastic material can be differentiated in amorphous and semi-crystalline type.
The different material properties are shown in table1.
Rudramoorthy: Modeling of temperature distribution in ultrasonic welding of themermoplastics for various joint designs (Journal of Materials Processing Technology Elsevier (2007) [4] Rotheiser, Jordan: Joining of Plastics.

Dispersed materials in the form of simple oxides of composition Me2O3 (Me – Al, Cr) with corundum type structure. 2.
Cand. tech. sciences.
University (NPI). - Rostov n / a: Publishing House Journal.
[Tribology of construction materials: Study guide.]
University (NPI). - Rostov n / a: Publishing House Journal.

The Smart-Cut technology is an industrial process widely used in the manufacturing field of microelectronic components with the semiconductor materials, to produce high quality silicon-on-isolator (SOI) in high volume [1].
Akatsu, Journal of Applied Physics 97 (2005)
Rajagopalan, Journal of Applied Physics 49 (1978)
Hall, IEEE Transactions on Nuclear Science 31 (1984) 320-325
Klocker, Journal of Applied Physics 103 (2008).

Acknowledgment This work has been supported by the National Natural Science Foundation (Approved Grant: 10176014) and the National Natural Science Foundation of China (No.50335030).
Yamanaka et al.: Journal of Vibration and Acoustics Vol. 117 (1995), p. 70 [3] H.H.
Dimarogonas: Journal of Sound and Vibration Vol. 117 (1987), p. 81 [8] T.C.
Wang: Journal of Sound and Vibration Vol. 192 (1992), p. 607 [9] A.S.
Rogers et al: Fatigue and Fracture of Engineering Materials and Structures Vol. 20 (1997), p. 13 [12] R.

Different materials of the porous matrices have allowed bringing to light the influence of the material properties.
Two of the most common materials used in heat pipes are the naturally existing porous media such as rock, soil, sandstone, limestone, and the man-made porous media such as ceramics, foam, rubber and metal wick.
The result is also in agreement with findings by Mahgoub [9] who studied the effects of particle diameter and particle materials with different thermal conductivities on the rate of heat transfer over a horizontal flat plate with air as working fluid.
Ma, "Evaporation heat transfer in sintered porous media," ASME Journal of Heat Transfer, vol. 125, pp. 644-652, 2003
Hwang, "Effects of particle size and particle size distribution on heat dissipation of heat pipes with sintered porous wicks," Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, pp. 2071–2078, 2009

Materials Science and Metallurgical Engineering, Facultat de Química, Universitat de Barcelona, Martí Franqués,1, 08028 Barcelona, Spain 2Dept.
Materials Science and Metallurgical Engineering, Universitat Politécnica de Catalunya, Av.
Cabrera, Enhancing ductility of ECAP processed metals, Materials Science Forum 654-656 (2010) 1219-1222
Kim, Densification and consolidation of powders by equal channel angular pressing, Materials Science Forum 534-536 (2007) 253-256
Fuertes, Evolution of damage in AA-5083 processed by equal channel angular extrusion using different die geometries, Journal of Materials Processing Technology 211 (2011) 48-56

Its major advantage is “virtual prototyping” which can be used to analyze and compare different materials.
The results from this research provide an insight into finite elements for reliability in design of composite materials.
The research on software development for shear stress distribution in multicell beams of isotropic materials has been discussed in [8].
ANSYS Simulation Results with Shell Elements: ANSYS simulations were performed with all available shell elements for composite materials.
Shell 91 has also capabilities for nonlinear materials, whereas Shell 99 has not such capabilities.

Reliability and Sensitivity Analysis of Mechanical Structures Based on Dimension Reduction Method Shuxin Zhang1, aand Kaichao Yu1,b * 1 Mechanical & Electrical Engineering College, kunming University of Science and Technology, Kunming, Yunnan, 650500, China 2 Mechanical & Electrical Engineering College, kunming University of Science and Technology, Kunming, Yunnan, 650500, China ashuxin_1988@sina.com, bKmust.aaron@163.com Keywords: Sensitivity, Dimension reduction method, Reliability, Saddlepoint approximation.
This paper presents a method for probabilistic sensitivity analysis of mechanical components or structural systems subject to random uncertainties in loads, material properties and geometry.
Application example The I-beam is widely employed in the practical engineering, such as mechanical engineering, civil engineering and vehicle engineering to provide maximal strength in one direction (usually the direction bearing weight) with a minimal expense of material.
Chinese Journal of Theoretical and Applied Mechanics, 2012, 44(4); 797-801(in Chinese)
AIAA Journal , Volume 32(8), 1994, 1717–1723

Experiment Raw Materials.
Microcapsule synthesis raw material includes: epoxy resin, formaldehyde, urea, triethanolamine, and sulfate.
Sottost, et al.Journal of Microencapsulation, vol.6 (2003),p719-730. ].
Journal of Mechanics and Applied Mathematics.
Acknowledgement Project Supported by Natural Science Foundation for the Team Project of Guangdong Province (Grant No. 9351806001000001) is greatly acknowledged.

So, the effective fatigue stress concentration which considers material and notch sensitivity can be obtained through )1(1f −+= tKqK (8) where q is the sensitivity coefficient of metal material and it is usually suggested to be 0.1-0.2 for surface of small notch root radius.
Acknowledgement The study is supported by National 973 Program of China and National Natural Science Foundation of China (50975232).
Scott: Key Engineering Materials Vols. 295-296 (2005), p. 431-436 [2] R.M'Saoubi, J.C.
Journal of Fatigue Vol. 24(2002), p. 923-930
Ramulu: Journal of Composite Materials Vol. 33(1999), p.86-101.