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Experimental The shaft material was AISI 1030 steel.
Two machined sides of same material were fixed together by a jig plate with screws to hold it aligned.
A replacement block was fabricated, using the same material having exactly the same dimensions and shape with the removed portion.
The replacement block was then joined with the two pieces of the shaft by TIG welding (without filling material) to create one uniform material structure with a crack depth of 40% of the diameter.
This work was supported by Faculty Research Grant Scheme 2010 from the Faculty of Computing, Health and Science, Edith Cowan University, Australia.

Testing of anchored rock bolt with ultrasonic guided wave Wen He1,a, Qingsheng Liu2,b, Qirui Huang3,c 1Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China 2 Faculty of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou Jiangxi 341000 3School of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute, Jingdezhen, Jiangxi 333403, China ahewen81@gmail.com, b lqs_01259@126.com, c779473812@qq.com Keywords: Ultrasonic guided wave, anchored bolt, Reflected wave, Attenuation Coefficient.
Results show that concrete as anchored material at different curing time can represent different bonding quality, and attenuation coefficient value of ultrasonic guided wave in anchored bolt increases as the increasing of curing time.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50904028, 51264011）and Youth Science Foundation of Jiangxi Educational Committee, China (GJJ12365）.
Zhao: Journal of Jiangxi University of Science and Technology , Vol.33 (2012), p.21.
Applied Mechanics and Materials, Vol.117-119(2012), p.962.

The need to improve the surface properties of materials, has led to the development of parts coated with hard materials deposited on substrates.
Introduction Advances in coatings, to study mono or multilayer materials and the advancement in the use of these techniques in fields as diverse as microelectronics or packaging, require the use of another test, other than traction, for to be able to characterize the mechanical properties of said coatings and of the component itself.
What has allowed, to have an alternative methodology for the determination of mechanical properties in materials, without the need for experimental tests.
Materials and Methods With the commercial software ABAQUS / CAE [3], [4] the models are generated in axisymmetric projection of the indenter-substrate assembly in order to simulate the indentation of the substrate AA Aluminum 6063 T6.
References [1] Minsoo Kim, Karuppasamy Pandian Marimuthu, Jin Haeng Lee, Hyungyil Lee: Spherical indentation method to evaluate material properties of high-strength materials, International Journal of Mechanical Sciences, Vol. 106, p. 117-127, (2016) [2] Maxwell Santana Libório, Avelino Manuel da Silva Dias, Roberto Martins Souza: Determination of Film Thickness Through Simulation of Vickers Hardness Testing, Materials Research, Vol. 20(3), p. 755-760, (2017) [3] Jacky Lesage, A Pertuz, ES Puchi_Cabrera, Didier Chicot: A Model to determine the surface hardness of thin films from standard micro-indentation tests, Journal of Thin Solid Films, Vol. 497, 1-2, p. 232-238, (2006) [4] Abaqus/CAE User’s Manual [5] Maylett Y.

Introduction Under low temperature, the main mechanical properties of structural materials change according the drop of temperature.
The above measurements are all in material level, which can’t study the whole real structure behaviors in low temperature with measurement.
Experimental study of the impact toughness of rail steel at low temperatures , Journal of Tsinghua University (Science and Technology) ,Vol.47, No.9 (2007), p.1414-1417 (in Chinese)
Journal of Railway Engineering Societ, No.98 (2006), p.26-29(in Chinese)
Journal of the University of Petroleum, Vol.29, No.5 (2005), p. 91-94(in Chinese).

Set the element type, material properties, defined mesh size, mesh generation.
Cell material is 45#, we can obtain the required parameters by accessing to manual.
Journal of Sound and Vibration. (2007) No.7, pp.321-333
Complex Modal Parameter Identification．Journal of Nanjing University of Science and Technology. (2000) No.24, pp.56-60.( In Chinese) [4] Ohammad Movahhedy and Peiman Mosaddegh．Prediction of Chatter in High Speed Milling including Gyroscopic Effects．International Journal of Machine Tools＆Manufacture. (2005) No.1, pp.6-10
Cao and Yusuf Altintas．Expert Spindle Design System．International Journal of Machine Tools＆Manufacture. (2005) No.45, pp537-548.

Huuki J et al. [2] discussed the influence of ultrasonic burnishing technique on the surface quality for three different materials, namely, aluminum, 34-CrNiMo6 tempering steel and S355J2 structural steel.
Compared with the initial turned surface roughness, the surface roughness values for these three materials decrease by an average of 88% and the finished surface measured an average value of 0.36 ± 0.16μm.
Experiment Material and equipment.
Journal of Engineering, Volume 2014(2014), Article ID 124247, 1-8
International Journal of Ma-chine Tools and Manufacture, 2005, 45(6): 713-718

A kind of new carboxyl and vinyl co-modified silicone oil (Vi-CAS-1) was synthesized with vinyl/amino co-modified silicone oil (Vi-ASO-1) and maleic anhydride (MA) as raw materials.
Experiment Materials.
Journal of Functional Polymers, 2001, 14(2): 163-168
Silicone Materials, 2006, 20(3): 138-143
Journal of Chemical Engineering, 2010, 24(5): 876-880.

Additional process advancements included using pulsed direct current and low current densities, applying to a wider variety of materials, and utilizing reactive gases like CO2 and other gas combinations.
They came to the conclusion that these materials exhibit greater hardness, yield, and ultimate tensile strengths than base metals and that weld transverse tensile failures frequently occur away from the weld zone [15].
SEM evaluation of materials with fractures In impact toughness weldment samples, fracture morphology displays coarse dimples with a combination of ductile and brittle fracture.
Jeong: Fundamental of Fusion Welding, Journal of Korea Welding Joining Society, 19-2(2001), 1-4
Journal of Mechanical Science Technology,27, (2013),2457–65

The work material is stainless steel (SUS304) which is commonly used for pressure vessels.
The work-hardened area is two to three times harder than the base material.
MacDonald, Mirna Urquidi-MacDonald: A coupled environment model for stress corrosion cracking in sensitized type 304 stainless steel in LWR environments, Corrosion Science,32(1991) p. 51–81
Kocks: Laws for work-hardening and low-temperature creep, Journal of Engineering Materials and Technology, 98(1976) p.76–85
Ehmann, C.Lin: Analysis of dynamic characteristics of micro-drills, Journal of Materials Processing Technology, 141(2003) p16-28.

The friction coefficient for workpiece-fixture material pair is 0.20.
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DeMeter: Journal of Engineering for Industry Vol. 117 (1995), p. 186 [3] M.Y.
Pelinescu: Journal of Manufacturing Science and Engineering Vol. 125 (2003), p. 325 [4] B.
Nee: IEEE Transactions on Automation Science and Engineering Vol. 1 (2004), p. 121 [6] B.