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The Effects of Tensile Softening Curve Parameters on Fracture in Concrete Based on Initial Fracture Toughness Criterion Longbang Qing1,2, a, Huanhuan Liu1,b 1College of Civil Engineering, Hebei University of Technology, Tianjin, China 2Civil Engineering Technology Research Center of Hebei Province, Tianjin, China aqlongbang@126.com, b hebut_tm@163.com Keywords: concrete, fracture, initial fracture toughness, tensile softening curve, fracture process zone Abstract.
Yang, Journal of Hydraulic Engineering, 38 (2007) 46-52.
Li, Engineering Fracture Mechanics, 99 (2013) 295-305
Mai, Engineering Fracture Mechanics, 69 (2002) 219-234
Wang, Journal of Hydraulic Engineering, 7 (1999) 12-16.

Soft Insert for Support Modeling of Slightly Textile Reinforced Concrete Tomáš VLACH1,a*, Lenka LAIBLOVÁ1,b, Michal ŽENÍŠEK1,c, Jakub ŘEPKA1,d and Petr HÁJEK1,e 1Building Structures, Faculty of Civil Engineering, CTU in Prague, 166 29 Prague, CZ atomas.vlach@cvut.cz, blenka.laiblova@cvut.cz, cmichal.zenisek@cvut.cz, djakub.repka@cvut.cz, epetr.hajek@cvut.cz Keywords: Textile reinforcement, high performance concrete (HPC), textile reinforced concrete (TRC), AR-glass fiber roving, numerical modeling, Atena Engineering.
The purpose of this experiment was validation of all used material parameters from the previous research in the program for nonlinear analysis of concrete and reinforced concrete Atena Engineering.
Testing results are presented together with numerical results from Atena Engineering software in Fig. 2 below.
Numerical model was created in the Atena Engineering 2D program [11] for nonlinear analysis of concrete and reinforced concrete structures.
Pukl, ATENA — A tool for engineering analysis of fracture in concrete, Sadhana 27/4 (2002) 485–492

A Practical Numerical Method for Earthquake-Induced Horizontal Displacement of Submarine Slope Guangbiao Shao Civil Engineering College, Shandong JianZhu University, Jinan, Shandong, 250101, China sgbou@126.com Keywords: submarine slope; earthquake liquefaction; soften modulus; horizontal displacement; numerical analysis.
References [1] Lee, K.L. and Albaisa: Journal of the Geotechnical Engineering,ASCE, Vol.100 (1974): p384 [2] Xie, J.F., Shi, Z.J. and Yu S.S. et al.: Earthquake Engineering and Engineering Vibration, Vol.8(1988): p61 (in Chinese) [3] Meng, S.J., Yuan, X.M.: Earthquake Engineering and Engineering Vibration, Vol.23(2003): p102 (in Chinese) [4] Scott, R.F. and Zuckerman, K.A.: Caltech Earthquake Engineering Research Laboratory Technical Reports: SML- 1970- 001, California Institute of Technology
[5] Papatheodorou, G. and Ferentinos, G.: Marine Geology, Vol.137(1997): p287 [6] Feng, X.L., Zhuang, Z.Y. and Lin, L. et al.: Coastal Engineering, Vol.19(2000): p50 (in Chinese) [7] Xu, Z.Y. and Shen, Z.J.: Journal of East China Institute of Water Conservancy, Vol.9(1981): p1 (in Chinese) [8] Kokusho,T.: Soil Dynamics and Earthquake Engineering, Vol.23 (2003): p585 [9] Towhata, I., Sasaki, Y., Tokida, K.I.

Stabilization of steel structure has always been a key concern in the engineering world.
Introduction In 1972, the American Welding Society included the welding of pipe structures into the welding code, and pipe truss structures began to be widely used in engineering practice [1].
In recent years, with the continuous improvement of the theory of tube truss structure and the development of related design and analysis software, the application of tube truss has been promoted to a great extent, which makes the scope of tube truss application not only limited to ocean engineering and bridge engineering [2].
[3] Zhou J.J, Study on Application of Tubular Truss Structures in Engineering [J].
Beijing: China Building and Construction Press, 2021 [8] Wuqin Wang and Junqing Lei, Analysis of bridge crash cases [C]. in the 9th Annual Conference of China Civil Engineering Society. 2000.

Influence of Technological Cutting Parameters on Surface Texture of Austenitic Stainless Steel KROLCZYK Grzegorz M. 1,a, LEGUTKO Stanislaw 2,b, MARUDA Radoslaw W. 3,c 1 Faculty of Production Engineering and Logistics, Opole University of Technology 76 Proszkowska Street, 45-758 Opole, Poland 2 Faculty of Mechanical Engineering and Management, Poznan University of Technology 3 Piotrowo Street, 60-965 Poznan, Poland 3 Faculty of Mechanical Engineering, University of Zielona Gora, 4 Prof.
The paper presents the contribution in engineering of surfaces particularly in surface texture of Austenitic Stainless Steels.
Legutko, Microhardness and Surface Integrity in Turning Process of Duplex Stainless Steel (DSS) for Different Cutting Conditions, Journal of Materials Engineering and Performance. 23, 3 (2014) 859–866
Legutko, Determination of tool life and research wear during duplex stainless steel turning, Archives of Civil and Mechanical Engineering. (2014) http://dx.doi.org/10.1016/j.acme.2014.05.001.

Description of the engineering Wenzhou Weiwulu bridge is an oblique cross steel box arch bridge.
First, use MIDAS CIVIL to establish a whole bridge beam-column model.
Through the research of model, it finds that the maximum shear stress always appears in the foot of the shear nails, and it is the same as the actual engineering.
[11] SU Qing-tian, ZENG Ming-gen, WU Chong, STUD SHEAR DISTRIBUTION IN COMPOSITECURVED BEAM WITH OPEN SECTION, ENGINEERING MECHANICS, June 2010, Vol.27 Sup.I 222-227
[14] CHEN Ling-zhu, jiang Shou-chao, LI Guo-qiang, Numerical Simulation of Structural Behavior of Stud Shear Connectors at Elevated Temperature, Journal of Disaster Prevention and Mitigation Engineering, Feb. 2012, Vol.32 No.1 77-83.

Ultrasonic Vibration Characteristics of Nano-composite Ceramic in the Ultrasonic Polishing Process Ming Zhang1,a, Feng Jiao2,b 1School of Civil Engineering, Henan Polytechnic University, 454003, China 2 School of Mechanical and Power Engineering, Henan Polytechnic University, 454003, China azhangming@hpu.edu.cn, b jiaofeng@hpu.edu.cn Keywords: Nano-composite ceramic, Ultrasonic polishing, Ultrasonic vibration characteristic Abstract.
[6] Woong Cho, Yoomin Ahn, Chang-Wook Baek and Yong-Kweon Kim:.Microelectronic Engineering, Vol.65(2003) No. 1-2, pp. 13-23
[10] Zhaobo, D.d,He: Mechanical Engineering, Vol.6 (1998), pp.4-6.
Materials Processing Technology Advanced Materials Research, v 418-420, pp. 1690-1693, 2012, [12] Zhang M: Key Engineering Materials, Vol. 392-394 (2009), pp.146-150
Li: Key Engineering Materials, Vol.416 (2009), pp.173-177.

A New Elastic-Plasticity Yield Criterion for Rock and Soil Jianhua Liu 1,a, Weishen Zhu2,b 1School of Civil Engineering, Shandong University, China 2Geotechnical and Structural Engineering Research Center, Shandong University, China aljjcaz@sdu.edu.cn, bzhuw@sdu.edu.cn Key words: elastic-plasticity, yield criterion, rock and soil, mechanical analysis, FLAC method.
Introduction In rock and soil mechanical analysis in engineering Mohr-Coulomb and Drucker-Prager are commonly used yield criterions.
(In Chinese) [4] Liu Jianhua: Study on Lagrange method for rock mechanical behavior analysis and its application in engineering.
Conf. on Constitutive Laws of Engineering Materials: Theory and Application.
American Society of Mechanical Engineers Press, 1991.

The Structural Engineer.
Journal of Engineering Mechanics.
Journal of structural engineering.
Proceeding of International of Civil Engineers.
Journal of Engineering Mechanics.

Error Processing Techniques of Integral velocity Based on Frequency Spectrum Forecasting Aiguo Chen1,2,a*, Chengyong Wang1,b, Jiawei Ye3,c 1 Department of Mechatronics Engineering, Guangdong University of Technology, Guangzhou 510090,P.R.China 2School of ship Engineering, Guangzhou Maritime Institute, Guangzhou 510725,P.R.
China 3School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640,P.R.
Journal of Shenzhen University Science and Engineering,2010,27(3):374-378.
Twenty-first(2011) International Offshore and Polar Engineering Conference, Maui, Hawaii, USA,2011.148-151
China Ocean Engineering， 2006， 20(4)： 635-643