Gongcheng Kexue Yu Jishu/Advanced Engineering Science

Gongcheng Kexue Yu Jishu/Advanced Engineering Science (ISSN: 2096-3246) is a bi-monthly peer-reviewed international Journal. Gongcheng Kexue Yu Jishu/Advanced Engineering Science was originally formed in 1969 and the journal came under scopus by 2017 to now. The journal is published by editorial department of Journal of Sichuan University. We publish every scope of engineering, Mathematics, physics.

Submission Deadline
( Vol 53 , Issue 06 )
30 Nov 2021
Day
Hour
Min
Sec
Publish On
( Vol 53 , Issue 06 )
31 Dec 2021

Scopus Indexed

Aim and Scope

Gongcheng Kexue Yu Jishu/Advanced Engineering Science (ISSN: 20963246) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are in the following fields but not limited to:

Electrical Engineering and Telecommunication Section:

Electrical Engineering, Telecommunication Engineering, Electro-mechanical System Engineering, Biological Biosystem Engineering, Integrated Engineering, Electronic Engineering, Hardware-software co-design and interfacing, Semiconductor chip, Peripheral equipments, Nanotechnology, Advanced control theories and applications, Machine design and optimization , Turbines micro-turbines, FACTS devices , Insulation systems , Power quality , High voltage engineering, Electrical actuators , Energy optimization , Electric drives , Electrical machines, HVDC transmission, Power electronics.

Computer Science Section :

Software Engineering, Data Security , Computer Vision , Image Processing, Cryptography, Computer Networking, Database system and Management, Data mining, Big Data, Robotics , Parallel and distributed processing , Artificial Intelligence , Natural language processing , Neural Networking, Distributed Systems , Fuzzy logic, Advance programming, Machine learning, Internet & the Web, Information Technology , Computer architecture, Virtual vision and virtual simulations, Operating systems, Cryptosystems and data compression, Security and privacy, Algorithms, Sensors and ad-hoc networks, Graph theory, Pattern/image recognition, Neural networks.

Civil and architectural engineering :

Architectural Drawing, Architectural Style, Architectural Theory, Biomechanics, Building Materials, Coastal Engineering, Construction Engineering, Control Engineering, Earthquake Engineering, Environmental Engineering, Geotechnical Engineering, Materials Engineering, Municipal Or Urban Engineering, Organic Architecture, Sociology of Architecture, Structural Engineering, Surveying, Transportation Engineering.

Mechanical and Materials Engineering :

kinematics and dynamics of rigid bodies, theory of machines and mechanisms, vibration and balancing of machine parts, stability of mechanical systems, mechanics of continuum, strength of materials, fatigue of materials, hydromechanics, aerodynamics, thermodynamics, heat transfer, thermo fluids, nanofluids, energy systems, renewable and alternative energy, engine, fuels, nanomaterial, material synthesis and characterization, principles of the micro-macro transition, elastic behavior, plastic behavior, high-temperature creep, fatigue, fracture, metals, polymers, ceramics, intermetallics.

Chemical Engineering :

Chemical engineering fundamentals, Physical, Theoretical and Computational Chemistry, Chemical engineering educational challenges and development, Chemical reaction engineering, Chemical engineering equipment design and process design, Thermodynamics, Catalysis & reaction engineering, Particulate systems, Rheology, Multifase flows, Interfacial & colloidal phenomena, Transport phenomena in porous/granular media, Membranes and membrane science, Crystallization, distillation, absorption and extraction, Ionic liquids/electrolyte solutions.

Food Engineering :

Food science, Food engineering, Food microbiology, Food packaging, Food preservation, Food technology, Aseptic processing, Food fortification, Food rheology, Dietary supplement, Food safety, Food chemistry. AMA, Agricultural Mechanization in Asia, Africa and Latin America Teikyo Medical Journal Journal of the Mine Ventilation Society of South Africa Dokkyo Journal of Medical Sciences

Physics Section:

Astrophysics, Atomic and molecular physics, Biophysics, Chemical physics, Civil engineering, Cluster physics, Computational physics, Condensed matter, Cosmology, Device physics, Fluid dynamics, Geophysics, High energy particle physics, Laser, Mechanical engineering, Medical physics, Nanotechnology, Nonlinear science, Nuclear physics, Optics, Photonics, Plasma and fluid physics, Quantum physics, Robotics, Soft matter and polymers.

Mathematics Section:

Actuarial science, Algebra, Algebraic geometry, Analysis and advanced calculus, Approximation theory, Boundry layer theory, Calculus of variations, Combinatorics, Complex analysis, Continuum mechanics, Cryptography, Demography, Differential equations, Differential geometry, Dynamical systems, Econometrics, Fluid mechanics, Functional analysis, Game theory, General topology, Geometry, Graph theory, Group theory, Industrial mathematics, Information theory, Integral transforms and integral equations, Lie algebras, Logic, Magnetohydrodynamics, Mathematical analysis.
Latest Journals
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-71
Total View : 2

Abstract :

33 material specimens were tested to explore the mechanical properties of Q460 high-strength steel plate with holes under monotonic tension and low-cycle fatigue loadings. The stress-strain curve, skeleton curve and energy dissipation capacity comparison of the specimens were analyzed. The influence law of the design size of the specimen, the number of openings and the loading mode on the strength, stiffness, ductility and energy dissipation capacity of the specimens with holes were discussed. On this basis, a finite element model of specimen under fatigue loading was established by the ANSYS software to verify the correctness and reliability of the model. The test results showed that round holes have an adverse effect on the mechanical properties of specimens. The holes lead to stress concentration of specimens. Under the fatigue loads, increasing the number of axial holes of the specimens is beneficial to improve the ductility of specimen, but has an adverse effect on the energy dissipation capacity of the steel. Under low-cycle repeated loadings, the specimens usually cracked and destroyed near holes, and the failure shapes are saddle-shaped. The thickness of the specimens has a significant impact on the failure mode and mechanical properties of the high-strength steel. Under the fatigue loads, the damage forms of the opening specimens and the non-open tester are different, and two different fracture forms are exhibited as thickness. With the increase of the design thickness of the specimen, the fracture section shows two forms. With the increase of the thickness of the steel, the mechanical properties of the specimens have improved significantly. As the number of load cycles increases, the ductility of Q460 high-strength steel decreases and the energy consumption capacity increases.

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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-70
Total View : 0

Abstract :

To study the seismic performance of corrugated steel plate concrete-composite shear wall with replaceable component of wall toe, two shear wall specimens were designed and fabricated. The influences of different arrangement forms of corrugated webs on seismic performance of shear wall specimens were analyzed by quasi-static tests and ABAQUS finite element software. The test result indicated that the wall toes of the specimen were destroyed before the main member, and the damage was mainly concentrated on the replaceable components before the ultimate drift ratio was reached. Compared with the horizontal corrugated steel plate concrete-composite shear wall, the lateral bearing capacity of the vertical corrugated steel plate concrete-composite shear wall had increased by 18.3%, the ductility coefficient increased by 28.69%, and the energy dissipation capacity increased by 3.3 times; The rate of bearing capacity degradation and stiffness degradation, the equivalent viscous damping coefficient and the stiffness degradation ratio were all lower, and the initial stiffness of the latter was slightly improved, which demonstrated that the vertical corrugated steel plate concrete-composite shear wall had better mechanical and seismic performance. By comparing the ABAQUS finite element model analyses with the test processes, the failure mode was basically consistent with the test phenomenon, which indicated that the finite element model established in this article had a certain reliability.

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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-69
Total View : 0

Abstract :

In order to solve the engineering application problems such as low cohesion and poor water stability of silt in the alluvial plain of the Yellow River, the sintering red mud and matrix asphalt were utilized as the main materials to prepare red mud-asphalt powder curing agent (RAC) for comprehensively stabilizing the silt. Setting the optimum dosage of cement as 5% and adding 0, 2%, 4%, 6%, 8% RAC to form stable silt specimens, the compressive strength and uniaxial compressive elastic modulus tests were conducted at 3 d, 7 d, 28 d ages after standard curing, immersion softening, cyclic heating, low-temperature freeze-thaw and high-temperature self-healing methods. The change rules of comprehensive road performance of stabilized silt with different dosage of RAC were compared and analyzed. The scanning electron microscope (SEM) was used to observe the microstructure and pore characteristics of silt, cement stabilized silt and RAC stabilized silt, and then the mechanism of solidification and stabilization was discussed. Combined with the practical application of entity engineering, the road performance of RAC stabilized silt was tested and verified. The results showed that RAC stabilized silt had good mechanical properties and water stability compared to cement alone, the strength of 2%, 4%, 6%, and 8% RAC stabilized silt increased by 110%, 146%, 156%, and 161%, respectively after standard curing of 3 d, and the loss rate of immersion strength at 28 d age is reduced from more than 50% to less than 20%. The strength of cement stabilized silt increased slightly after 5 cycles of heating, but the strength of RAC stabilized silt increases by more than 140% when the dosage was higher than 4%. After the low-temperature freeze-thaw tests, the cement stabilized silt specimen cracked and damaged, the RAC stabilized silt specimen was intact, and the loss rate of strength was less than 15%. The specimen was loaded to 90% ultimate load and heated for 5 times, the strength change rates of 2%, 4%, 6%, and 8% RAC stabilized silt were –8.3%, –2.3%, 8.0%, and 12.9%, respectively. The SEM images showed that RAC stabilized silt had dense cemented aggregates and non-connected microporous structure with uniformly distributed pore diameter less than 1 μm, which were beneficial to improve the water stability and frost resistance of stabilized silt. The asphalt components wet-bonded and wrapped with silt particles and hydration products under high temperature conditions, which accelerated the diffusion to fill the internal pores and micro cracks and realized damage repair and structural reinforcement of stabilized soil. In the entity project, the road base was filled with “4% RAC+5% cement” stabilized silt. After opening to traffic, the overall bearing capacity and service condition of the road were in good condition through field coring and FWD deflection tests. There were no cracks, pits, loose and other damages.

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Full article
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-68
Total View : 0

Abstract :

As an effective means for the exploitation of Hot Dry Rock (HDR) resources, the Enhanced Geothermal System (EGS) has broad development prospects and a great utilization value. Therefore, it is particularly important to predict its capacity and longevity. In order to realize the productivity and longevity prediction of the double-well EGS, the productivity and longevity prediction methods of the EGS system under different working conditions were analyzed through theoretical derivation and numerical simulation. Firstly, based on the Dupuit formula and the endothermic formula, the EGS productivity and longevity control equation was established to provide theoretical support for EGS longevity prediction. Then, according to the groundwater flow equation and the heat transfer equation, combined with the Newton’s cooling law, five factors affecting the four unknown parameters in the EGS productivity and longevity control equation were analyzed. The four unknown parameters were the reduction of thermal reserves, the amount of geothermal compensation, the average conversion temperature of production wells, and the shape coefficient of thermal reserves. The five factors obtained were the initial temperature of thermal storage, the injection temperature of thermal medium, the volume of thermal storage, the specific surface area of thermal storage, and the EGS running time. Under the condition of considering the geothermal compensation, the three parameters of EGS with double-well were used to analyze, correct and quantify the influence factors of each unknown parameter when the thermal storage breakthrough occurred, and then obtained the prediction formula of the four unknown parameters changing with the five factors. Based on the above results, a method for predicting the productivity and longevity of the double-well EGS was obtained: using the EGS productivity and life control equation, the prediction formula of four unknown parameters, and the thermal reserve permeability to predict the productivity and longevity of the double-well EGS. Finally, the prediction method of production capacity and longevity of the double-well EGS was used to predict the working conditions of the existing literature and compare them. The two results were in good agreement, which proved the applicability of the control equation and the prediction formula and the accuracy of the prediction method.

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Full article
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-67
Total View : 1

Abstract :

The water holding capacity of unsaturated soils is usually reflected by the changing laws of soil-water characteristic curves. The important influence of factors such as load and temperature on the soil-water characteristic curve has been gradually recognized, but studies on the combined effect of moisture-load-heat on the soil-water characteristic curve are rarely reported, and the analysis of its dominant influence factors is even rarer. In order to explore the water holding capacity of silty clay under the combined action of moisture-load-heat, this paper carried out dry-wet cycle experiments of silty clay under different vertical stress and temperature conditions, and analyzed the influence mechanism, characteristics and characteristics of each factor. Importance, and established a predictive model reflecting the interaction of multiple factors. The research results show that With the increase of the vertical stress, the air intake value of unsaturated soil increases, the dehumidification rate decreases, and the hysteresis effect of the dry-wet cycle process becomes stronger, and it shows the same characteristics at all temperatures. Comparing the experimental curves under the same vertical stress and different temperatures, it is found that the air intake value of the soil is relatively slightly lower when the temperature is higher. The vertical stress has the greatest influence on the water holding capacity of the soil, but it is mainly limited to the low suction stage the dry-wet cycle has the second effect, and it will rapidly decay as the number of cycles increases the temperature has a small influence and is When the suction value or density is high, it can be ignored. The improved L model based on the Logistic curve is more suitable for the soil-water characteristic curve fitting of Badong silty clay than the commonly used V-G model. The comprehensive research results show that the root cause of the change of the characteristic value caused by the vertical stress is the change of the internal pore structure, which leads to the difference in water holding performance; temperature mainly affects the water holding performance of the soil in a low-stress and low-suction state 3 types The degree of influence of occurrence conditions on water holding capacity of silty clay is vertical stress>dry-wet cycle>temperature distribution the improved L model can effectively reflect the evolution of water holding capacity of silty clay under the combined action of moisture-load-heat feature.

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