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Strain hardening and damage in 6xxx series aluminum alloy friction stir welds Aude Simar 1,a , Kim Lau Nielsen1,2,b , Bruno de Meester1,c , Thomas Pardoen1,d , Viggo Tvergaard2,e 1 Institute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium 2 Department of Mechanical Engineering, Solid Mechanics, Technical University of Denmark, DK-2800 Kgs.
The strain hardening behavior of the weld and the engineering strain at necking are remarkably well predicted.
Fig. 4: Engineering stress-strain curves for the friction stir weld comparing the experimental and simulated results using different estimates for θIV.
Fig. 5: Predicted local equivalent plastic strain, pMε , in the weld (case 3) for (a) 9% of global engineering strain and (b) well into void coalescence.
However, at a global engineering strain of 9%, only very limited void nucleation and growth has occurred.

A southern highway asphalt pavement analysis and treatment of water damage Wenli Li1,a 1Xuchang University School of Civil Engineering Henan Province, china a313489058@qq.con Keywords: Water damage, material selection, drainage class structure layer Abstract.
In order to understand the highway defects and diseases related traffic engineering test center for quality supervision station were detected across the board, some of the detection results of the project are summarized in Table 1.
In combination with engineering practice, through material selection and grading design, the design of the treatment structure, the use of the drainage layer of class structure, eliminate stagnant water inside the pavement structure and other measures, mainly to solve the problem of water damage to asphalt pavement.
From the engineering cost saving, convenient construction and ensure the construction period, the general sections of upper layer of recommended AC-13C.That is shown as in Table 3.
Central South Highway Engineering , 2005 No.9 In Chinese [2] J.A Shen, F.P Li, J Chen.

Comparative analysis of ground settlement caused by two kinds of tunnel excavation method Yuan Changfeng1,a, Huang Haibin1,b, Wang Jinchao,c and Yuan Zijin1,d 1College of civil engineering, Qingdao Technological University of China ayuanchangfeng70@126.com, b1075881174@qq.com, c708830522@qq.com,d564682641@qq.com Keywords: Benching method; advance bottom heading method; tunnel excavation; ground settlement Abstract.
Shallow tunnel excavation method[2] is a construction method that Wang academicians in China sets up according to NATM principles and combined with a large number of engineering practice in our country started , this method is currently the most widely used in our country, and perfected continuously in the practical engineering, especially in hard rock tunnel, generally using this method to the construction in our country.
References: [1] Yuan Changfeng, in Guang Ming, Wang Xiaolei, Wang Ning．Key Technology Research of Urban Underground Engineering Space Data Management[J].
Chinese Journal of underground space and Engineering, 2012, 8（5）: 939-944 [2] Wang Mengshu.
Compile.Qingdao Jiaozhou Bay tunnel engineering research and practice[M].Beijing：China Communications Press, 2011

Silvestre: Density results using Stokeslets and a method of fundamental solutions for the Stokes equations, Engineering Analysis with Boundary Elements, Vol. 28 (2004), pp. 1245-1252
Kuo: Localized method of fundamental solutions for solving two-dimensional Laplace and biharmonic equations, Engineering Analysis with Boundary Elements Vol. 101 (2019), pp. 188-197
Lecture Notes in Computational Science and Engineering, Vol. (116) (2017), pp. 303-311.
G´asp´ar: A localized version of the Method of Fundamental Solutions in a multi-level context, Periodica Polytechnica Civil Engineering Vol. 67(3) (2023), pp. 716-724
Golberg: The method of fundamental solutions for Poisson's equation, Engineering Analysis with Boundary Elements Vol. 16 (1995), pp. 205-213.[9] P.L.

In practical engineering, some beams are cracked due to long-term overloading.
In practical engineering, CFRP can be used to strengthen the damaged prestressted concrete beam effectively.
Journal of Bridge Engineering, Vol. 9(2004), p. 185-192
Engineering Structures.
China Civil Engineering Journal.

Tantardini, "Integrated maintenance and production planning: A model to include rescheduling costs," Journal of Quality in Maintenance Engineering, vol. 18, pp. 42-59, 2012
Duenyas, "Integrated maintenance and production control of a deteriorating production system," IIE Transactions (Institute of Industrial Engineers), vol. 34, pp. 423-435, 2002
Vanier, "Why industry needs asset management tools," Journal of Computing in Civil Engineering, vol. 15, pp. 35-43, 2001
Feigenbaum, "Adopting a new competitive discipline for today's competitive times," Engineering Management Journal, vol. 4, pp. 78-80, 1994
Myklebust, "Integrated key performance indicators: a tool for smarter decision making," ed Trondheim: NTNU, Faculty of Engineering Science and Technology, 2012, pp.

Wu1,a and Yi-Jian Lin2,b 1Department of Civil Engineering, Chung Hua University, Hsinchu.
Taiwan, ROC, 30012 2Zhao Feng Engineering Co., Ltd., Hsinchu.
Observations have been made for physical and engineering properties based on the fluid- and harden-state of the samples.
For most engineering applications, specification requires an averaged flowability ranging from 20 to 30 cm [5].
References [1] Sinotech Engineering Consultants, Ltd., Assessment and planning for multi-treatment of Shimen reservoir’s sludge, Taipei, 2008

Experimental Study on the Crack Resistance of Waste Asphalt Concrete Fiber Cement Stabilized Macadam Hongbo LI 1, 2,3, a, Zhanjiang LIU 1,b, Hui SHEN 1, 2,3, c 1 College of Civil and Hydraulic Engineering, Ningxia University , Yinchuan 750021, China, 2 Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Management, Yinchuan 750021, China, 3 Engineering Research Center for Efficient Utilization of Water Resources in Modern Agriculture in Arid Regions.
Through mixing different amount of waste asphalt concrete, fiber and fly ash, to study how those factors improve the crack resistance of waste asphalt concrete fiber cement stabilized macadam materials on the basis of having no affect on its mechanical properties, so as to adapt to the requirements for material anti-cracking performance of engineering construction.
The common ways for actual situation of engineering like covering with thin film or wet grass mat, or wet curing by water spraying frequently, which plays an important role in preventing and reducing dry shrinkage crack.
Drying Shrinkage Test Drying Shrinkage Test Results The preparation and maintenance of test specimens and the drying shrinkage test are conducted in strict accordance with the relevant provisions in highway engineering stable inorganic binder material test procedures (JTG E51-2009), the specific drying shrinkage test data of each specimen in different time periods are shown in Table3.
[10] W J Wen,Q Xu.Chinese Journal of Rock Mechanics and Engineering,vol.31(2012):499-506.

As an important issue in geotechnical engineering, engineers paid particular attention to evluate the stability of tailings, analyze the possible deformations and take measures correspondingly.
Most importantly, when performing analysis with Duncan-Chang modified model, do not forget to use engineer’s experience and judgment.
Department of Civil Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Va. 1984 [5] N Goko: Sensitivity Analysis of Parameters for Rockfill Dams.
Geotechnical Engineering, Vol.12, No.6, 1990, pp.32-41
Geotechnical Engineering, Vol.24, No.2, 2002, pp.170-174

Engineering hub of buildings includes 7 main aspects: concrete faced rockfill dams, Emptying tunnel of left bank, spillway of left bank, diversion tunnel of right bank , chamber surge-tank, pressure-equalizing passageway, and underground powerhouse.
Secondly, belong to the same segment engineering work packages accumulate can be segment engineering project.
The project involves more civil construction, Due to some internal and external environment influence, the preliminary schedule delays and cost overruns.
Koppelman, “Earned Value Project Management—A Powerful Tool for Software Projects” Crosstalk the Jounal of Deffence Software Engineering, July 1998
In Chinese [6] Deying Hu, Application of earned value assessment principles of the implementation of the project cost / schedule control, Chemical Engineering Design [J], 1994.2：46— 51.