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Online since: August 2011
Authors: Ming Chen, Jun Qing Gao, En Chen, Yu Wang
To better understand this closed loop, it’s important and significant to model the whole loop from a system engineering point of view.
These vehicles are classified as end of life vehicles (ELVs) and are potential sources of recoverable, reusable, and recyclable materials [1].
By taking materials flow, information flow, energy flow as well as the interactions among processes into account, it’s possible to do a holistic modeling for the whole ELVs infrastructure so as to have a better understanding and to find the opportunities to improve the infrastructure from system engineering point of view.
This work expands the input and output of IDEF0 to include materials, information and energy flow (see Fig.2) in order to solve the problems of ambiguous materials, information, and energy flow in the ELVs recovery infrastructure.
From system engineering perspective, the ELVs infrastructure was divided into four sectors in this work: vehicle design, vehicle manufacturing, vehicle use and vehicle recovery (see Fig.5).
Online since: May 2012
Authors: Feng Chen Zhang, De Jian Shen, Ji Kai Zhou, Yong Hao Fang
Risk Assessment and Diagnostic Method of Sulfate Attack of Cement-based Material Fengchen Zhang 1, a, Yonghao Fang 1, b, Dejian Shen 2, c and Jikai Zhou 2, d 1 College of mechanics and materials, Hohai University, Nanjing 210098, China 2 College of civil and transportation engineering, Hohai University, Nanjing 210098, China azhangfc67@163.com, bfangyh@hhu.edu.cn, cshendejian@hhu.edu.cn,dzhoujikai@163.com Keywords: risk assessment, diagnostic method, sulfate attack, cement-based material Abstract.
Risk Assessment Service Environment.Various factors affecting the sulfate attack of building materials are focused on two areas, one is environmental factor, and the other is properties of materials themselves.
Crack, peeling off, materials like mud on the concrete components with high risk of sulfate attack are key points for inspecting if constructions are located in sulfate environment.
Diagnostic Process for Sulfate Attack of Cement and Concrete Engineering Fig.4.
Conclusions Most of construction engineering must be concern the chemical attack.
Online since: October 2014
Authors: Jun Dong, Zhi Gang Qi, Bo Qiang Yao
Studies on the Dynamic Performance of the Continuous Rigid Frame Bridge Impacted by the Damage at Some Key Positions of the Side Piers YAO Boqiang1, a, DONG Jun1, b*, QI Zhigang1 1 Beijing Research Center for Engineering Structures and New Materials, Beijing University of Civil Engineering and Architecture, Beijing, 100044, P.R.China ayaoboqiang@126.com, bjdongcg@bucea.edu.cn * corresponding author Keywords: continuous rigid frame bridge; consolidation damage; natural vibration properties; connection damage; damage identification Abstract: Continuous rigid frame bridge is widely used in bridge construction because of its superior characteristics.
Zhang Xing [3] and Yu Shouwen [4] et al. introduce a variable of material damage degree, in the study on isotropic material, to reflect the elastic modulus changes at different time.
According to material mechanics, when members reach their design capacity, there is: =M/W=.
Material.
Highway Engineering, 2008, 01:36 -38 +58
Online since: February 2012
Authors: Her Yung Wang, Chia Sheng Hsieh, Tung Tsan Chen
A Study on Engineering Properties of Self-Compacting Concrete Containing Waste LCD Glass Her-Yung Wang1,a, Tung-Tsan Chen2,b* and Chia-Sheng Hsieh1,c 1Department of Civil Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan, R.O.C., Tel: +886-7-3814526 ext.5237, Fax: +886-7-3961321. 2Department of Civil Engineering and Engineering Management, National Quemoy University, No.1 University Rd., Kinmen County, 892, Taiwan, R.O.C., Tel: +886-8-2313352, Fax:+886-8-2313354.
This study suggests than SCGC has superior engineering properties.
In the end, this process ensures that the finished manufactured concrete is qualified to engineering specification and enhances resource recovery of regenerated waste material.
Experimental Plan Experimental Materials and Mixture.
Baxter: ACI Materials Journal Vol.97 No.12 (2000), p.208-13
Online since: August 2013
Authors: Ke Wu Pi, Zhu Li, Jun Li, Duan Ji Wan, Hui Chen
AHP-FUZZY applied research in determination Cleaner production audit Focus Zhu Li 1, 2, a, Jun Li1, b, Kewu Pi1, c, Hui Chen2,d, Duanji Wan1, e 1 College of Resources and Environmental Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China; 2 Cleaner Production Center of Hubei Province of China, Wuhan, Hubei 430068, China aE-mail: iamlizhu@163.com, b284698323@QQ.com, c pkw519@163.com, d9446082@QQ.com, ewanduanji@163.com Key words: AHP-FUZZY ; Cleaner Production Audit Focus; Power Source LTD Abstract: The Cleaner Production Audit was introduced into China along with the concept of Cleaner Production, The review the production process of the sewage Cleaner Production audit is the enterprise-level operating specific procedures, and the first step of the cleaner production audit is verification audit key.
The AHP-Fuzzy as one of system analysis methods is very good at deal with the insufficiencies atonement weight sum total scoring rank order method, had been used widely in many domains of systems engineering.
Standard layer includes five weighting factor, pollutant emission and material consumptions, energy consumption and cleaner production potential and process cooperation degree.
Hierarchy total taxis Applying to all kinds of audit key factors has shown below: 1.
AHP-Fuzzy method, as a kind of system engineering analysis method have a wide range of applications in many fields, such as appointment and removal of the cadre and personnel, vendor selection, product selection, performance evaluation, plan optimization, etc.
Online since: October 2011
Authors: Han Zhao, Li Hong Zhu, Xiao Chen Yin, Li Jun Zhu, Liang Zhang
Kansei Engineering is a comprehensive interdisciplinary subject among the design, engineering and other disciplines.
Kansei Engineering can be classified into the following three fields.
Fiat and Mercedes-Benz all pay attention to Kansei Engineering.
New methods based on Kankei Engineering should be put forwarded.
Firstly, how to capture customer s’ feelings through Ergonomics and psychology evaluation is the key.
Online since: July 2005
Authors: Roger Morrell
Edge Flaking - Similarity Between Quasistatic Indentation and Impact Mechanisms for Brittle Materials* Roger Morrell Division of Engineering and Process Control, National Physical Laboratory, Teddington, Middlesex, TW11 0LW, UK Keywords: Impact, edge flaking, fractography, brittle materials, ceramics Abstract.
The phenomenon is widely seen, from engineering components to crockery, from concrete steps to masonry.
The test was then applied to a range of ceramic materials and a WC/6%Co material.
Hard Materials, 1990, 1(1), 25-51
-P., Cambier, F., in Euroceramics VII Vol. 1., Key Engineering Mater., 2002, Vols. 206-213, 629-32
Online since: March 2013
Authors: Hong Yun Luo, Yu Bo Zhang, Yi Qin Li
The technology of PSA(probabilistic safety assessment) based on fracture mechanics has been applied on the engineering field.
The relation expression of flexure problem between critical load and natural frequency was given to assessment the structure of the ocean engineering structure[4].
Q345 steel which is usually used on the main structure of the port cranes, belonging to middle and low strength materials has lower yield strength while its fracture toughness-KIC is relatively high.
For the purpose of applying the PFAC to the engineering, it is recommended that the 90% reliability fitting curve to be adopted as the probabilistic safety assessment.
Jin, Probabilistic analysis and assessment of failure of engineering structures [ D] Beijing University of Aeronautics and Astronautics.(1998) 120-129
Online since: December 2019
Authors: Suren Mkhitaryan, Musheg Mkrtchyan, Eghine Kanetsyan
On the interface of dissimilar materials, the compound plane is reinforced by a collinear system of absolutely rigid thin inclusions and is subjected to mechanical and thermal influences.
As a result, local stress fields with large gradients are formed around the stress concentrators of these types, which significantly affect the durable characteristics of engineering structure, in particular, building and machine-building structures in general, and their parts separately.
Due to the theoretical and practical importance of temperature stresses in the calculations of engineering structures, containing stress concentrators of the type mentioned above, large-scale studies have been carried out in this area of thermoelasticity.
Here are the coefficients of linear thermal expansion of materials of the half-planes ; are their coefficients of thermal conductivity.
Fracture mechanics and strength of materials.
Online since: October 2011
Authors: Li Juan Li, Yong Chang Guo, Jian He Xie, Zhi Hong Xie, Jiang Zhu
The Research of Teaching Reform on Innovation Experiment Mode of Civil “Whole Process” Yongchang GUO 1a, Lijuan LI 1b, Zhihong XIE 2c, Jiang Zhu 1d, Jianhe XIE1e 1 Guangdong University of Technology, Faculty of Civil and Transportation Engineering, Guangzhou, 510006, China 2 Guangzhou Maritime college, Guangzhou, 510725, China aguoyc@gdut.edu.cn, blilj@gdut.edu.cn, cxiezhihong9732@163.com, dzhu-jiang10@163.com, bjhxie@gdut.edu.cn Key words: Civil engineering; Experimental teaching; “Whole Process” experimental model Abstract.
The civil engineering experimental center of Guangdong university of technology was founded in 1995, based on the combination of civil engineering department of Guangdong institute of technology (founded in 1958) and Guangdong architectural and civil engineering technical college (founded in 1956, renamed South China construction university(east campus) in 1992 ).
In 2009 the center obtained a construction project “the civil engineering technology research center” in Guangdong Province.
Building structure fatigue performance testing experiment can help students to understand the phenomenon of fatigue in engineering structure, to understand the damage characteristics of different materials and the strength under repeated load is much lower than dead load, so it can enhances the students’ ability of designing complex structure.
At first, reinforcement mechanical properties (material mechanical experiment part) are tested in engineering laboratory, and then concrete mix proportion test of RC beam is carried out in material laboratory, at last structure experiment is to be carried out so it realizes the whole process between different laboratories.
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