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Introduction Structural integrity problems have been recognized as the major concerns by engineers in power plant, civil engineering, aerospace and ship-architectural industries.
Fracture mechanics analyses have historically been carried out by using hexahedral finite elements [1, 2, 3], because many researchers and engineers have believed that the hexahedral finite elements have superior performance over tetrahedral elements in terms of their accuracies.
(Japan Society of Computational Engineering and Science) Vol. 12 (2007), p. 411
[9] Okada, H. and Kamibeppu, T.: CMES: Computer Modeling in Engineering & Sciences, Vol. 10 (2005), p. 229
[13] Erdogan, F. and Sih, G.C.: Journal of Basic Engineering Vol. 85 (1963), p.519

So that we can solve many complex problems that need to be solved in practical engineering while unable to be solved in theoretical analysis.
In recent years, with the popularization of computer technology and the increasing speed of calculation, the finite element analysis gets more and more widely attention in the engineering design and analysis, which has become the effective way to solve the problem of complicated engineering analysis and calculation.
The finite element analysis and calculation has widely been applied to various fields of the machinery manufacturing, materials processing, aerospace, automobile, civil construction, electrical and electronic, national defense military industry, shipbuilding, railway, petrochemical, energy, scientific research, which make the design level happen a qualitative leap, mainly manifested in the following aspects: Increase the reliability of the product and engineering; Found potential problems in product design phase; Optimize the scheme design analysis and reduce the cost of raw materials; Shorten the time of the product turned to the market; Through simulation test scheme to reduce test times, reducing test expenses.
FEA will get more and more widely attention in engineering design and analysis.
Municipal Engineering Technology, 2003, 21 (1): 10-14 [3] LiuBingShan, Huang Cong etc.

Establishing the digital model of hydraulic system in simulation vibration table Rui Li1, a, Xuesen Li1, Hong Xu1 1 School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi,China a liruijsj@xauat.edu.cn Key words: simulation vibration table; hydraulic servo system; actuators; simulation model Abstract: Based on the analysis of the development, defects and motion of present hydraulic system vibrating table, it is divided into several single disciplinary system modes which are organic related in this paper.
Laplace．Offline Tuning of Shaking Tables [J]．13th World Conference on Earthquake Engineering, 2004, No. 960
Sivaselvan．Real-Time Hybrid Simulation Using Shake Tables and Dynamic Actuators [J]．Journal of Structural Engineering , July 2011:748-760
Modeling, simulation and experiment on valve controlled asymmetry piston considering valve port error[J].Chinese journal of mechanical engineering,2007.43（9）：33-38．
Plummer．A Detailed Dynamic Model of a Six-Axis Shaking Table [J]．Journal of Earthquake Engineering, 2008,No.12: 631–6

Reuse of Municipal Wastewater Sludge for Construction Material Dengling Jiang1,2,a, Guowei Ni1,2,b and Guanyi Ma1,2,c 1 College of Civil and Architectural Engineering, Hebei Polytechnic University, Tangshan, Hebei Province, 063009, China P.
R. 2Earthquake Engineering Research Center of Hebei Province, Tangshan, Hebei Province, 063009, China P.
Show and S.Y.Hong: Bulletin of the College of Engineering N.T.U., Vol.86 (2002), p. 103-112 [6] J.
Afshari: Journal of Environmental Engineering, Vol. 121(1995), p. 633-638
Goh: Journal of Environmental Engineering, Vol.117 (1991), p. 224-235

Mohamed1,b 1Department of Civil Engineering, University of Nottingham Malaysia Campus, Semenyih Selangor 43500, Malaysia amostapha.boulbibane@nottingham.edu.my, babdullahi.ali@nottingham.edu.my Keywords: Shakedown theory, pavement distress, cyclic loads, unbound granular materials.
Booker, Shakedown of pavements under moving surface loads, Journal of Transport Engineering, 110 (1984), 1-14
Collins, The calculation of shakedown loads for contact problems, Key Engineering Materials, (2000), 177-180
Boulbibane, Geomechanical analysis of unbound pavements based on shakedown theory, Journal of Geotechnical and Geo-environmental Engineering, 126, (2000), 50-59
Shi, Bearing capacity of footings over two-layer foundation soils, Journal of Geotechnical Engineering, (1995), 421-428

Research on Application of 3D Parametric Software for Design and Shaping of Bus Frame Structure Thanh Cong Nguyen Faculty of Mechanical Engineering, University of Transport and Communications, Hanoi, Vietnam congnt@utc.edu.vn Keywords: Bus frame; 3D Parametric Softwar; Design and Rapid Shaping; Solidworks; Excel software Abstract: The structure of bus frame is mainly subject to the complex loads that affect the vehicle during operation, so the design of frame structureis always a key issue in the design, consuming a lot of time and effort.
In the design stage, design units all use Computer-aided design/Computer Aided Engineering (CAD/CAE) tools to carry out geometric models construction, analysis, test and imitation in order to anticipate work limitations of the products from which make changes in design.
Venugopal Rao,“A New Design and Analysis of BUS Body Structure”, IOSR Journal of Mechanical and Civil Engineering, Volume 11, Issue 5 Ver.1 ,pp 39-47 [2] TC Nguyen, QA Nguyen,“Research to evaluate the quality of passenger bus body frame, assuring the passive safety in the design process”,The first international conference on material, machines and methos for sustainable development, Vol 2, pp 461-467 (2018) [3] Craig B.
Chapman, Martyn Pinfold, “The application of a knowledge based engineering approach to the rapid design and analysis of an automotive structure”, Advances in Engineering Software, Vol: 32,pp 903-912(2001) [4] H.M.A Hussein and Alexander Harrich, “Computer Aided Bus Skeleton Design”, International Journal of Engineering and Technology IJET-IJENS, Vol:12, No:04 (2012) [5] Lingxia Kong, Chunning Jin, Qinghong Xu, Guofu Yang and Dongbin Kan, “Development of Knowledge-Based System for Bus Body Concept Design”, Advances in Mechanical and Electronic Engineering, Vol: 176, pp 555-561

Precise Integration Method of Pseudo-dynamic Testing of Structures Haibo Wang1,a, Rong Liu2,b 1,2School of Civil Engineering, Central South University, Changsha Hunan, China 410075 ahaibarg@csu.edu.cn,bliurongcsu@sina.com Keywords: pseudo-dynamic test of structures; precise integration method; predict-correct method; central difference method Abstract.
World Information on Earthquake Engineering, 2001, 17(4):p60-66.
Earthquake Engineering and Structural Dynamics, 1990, 19(2):p631-651
World Information on Earthquake Engineering, 1995, 12(3):p44-48.
Engineering Mechanics, 2002, 19 (6):p115-119.

In addition, Marc and his coworkers 3 analyzed the multiple interactions between soil layers and civil-engineering structures in dense urban areas under a seismic wave through simplified numerical models.
Soil Dynamics and Earthquake Engineering 23(2003)391-402
Earthquake Engineering and Engineering Vibration, Vol.19, No.2,51-55,June,1999
Engineering Mechanics, Vol..22, No.6, 46-51, December, 2005
Soil Dynamics and Earthquake Engineering 22(2002)283-295

Ibrahim2,c, and SYARIZAL Fonna2,d* 1Department of Mechanical Engineering, Faculty of Engineering, Universitas Samudra, Aceh 24415, Indonesia 2Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Syiah Kuala, Aceh 23111, Indonesia amuhammadisra081296@gmail.com, bsyifaul@unsyiah.ac.id, cisrar@unsyiah.ac.id, d*syarizal.fonna@unsyiah.ac.id Keywords: Corrosion, reinforced concrete, cathodic protection, Zn anode Abstract.
The combination of concrete with high compressive strength properties and high strength of reinforcing steel becomes an ideal composite material for civil construction.
In IOP Conference Series: Materials Science and Engineering (Vol. 796, No. 1, p. 012013).
Engineering Journal. 2019
[5] Fonna, S, Huzni, S., Zaim, A., Ariffin, A.K., “Simulation of Cathodic Protection on Reinforced Concrete Using BEM”, Journal of Mechanical Engineering, Vol SI 4 (2) pp 111-122, 2017

Mechanical Analysis of Flexible Pipe during Installation Hongdong Qiaoa, Zhaohui Shangb, Weidong Ruanc,Yong Baid College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China aqiao150001@zju.edu.cn, bshangzhaohuis@163.com cwdruan@zju.edu.cn, dbai@opr-inc.com Key words: Flexible Pipe, FEM Analysis, Bending Moment, Abaqus, Mechanical Analysis Abstract Mechanical analysis of flexible pipe during installation is presented in this paper.
So it is a useful method for engineering practice to estimate the load situation easily before the installation.
“A nonlinear PDF formulation for offshore vessel pipeline installation,” Ocean Engineering, 2010,Vol 37, pp 365-377
“Axial strength of reinforced thermoplastic pipe (RTP),” Proc 31th International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil, OMAE 2012
Quiggin, “Non-Linear Hysteretic Seabed Model for Catenary Pipeline Contact,” Pro 28th Int Conf on Ocean, Offshore and Arctic Engineering, Hawaii, USA.2009