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Artículos de revistas sobre el tema "Structural analysis (Engineering) Thermal analysis"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 10 de febrero de 2022

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1

McKnight, R. L. "Structural Analysis Applications". Journal of Engineering for Gas Turbines and Power 111, n.º 2 (1 de abril de 1989): 271–78. http://dx.doi.org/10.1115/1.3240248.

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The programs in the structural analysis area of the HOST program emphasized the generation of computer codes for performing three-dimensional inelastic analysis with more accuracy and less manpower. This paper presents the application of that technology to Aircraft Gas Turbine Engine (AGTE) components: combustors, turbine blades, and vanes. Previous limitations will be reviewed and the breakthrough technology highlighted. The synergism and spillover of the program will be demonstrated by reviewing applications to thermal barrier coatings analysis and the SSME HPFTP turbine blade. These applications show that this technology has increased the ability of the AGTE designer to be more innovative, productive, and accurate.

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2

Mohanty, Chinmaya P., Jambeswar Sahu y S. S. Mahapatra. "Thermal-structural Analysis of Electrical Discharge Machining Process". Procedia Engineering 51 (2013): 508–13. http://dx.doi.org/10.1016/j.proeng.2013.01.072.

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3

Wunderlich, Bernhard. "Structural data on crystalline polymers by thermal analysis". Journal of Polymer Science: Polymer Symposia 43, n.º 1 (8 de marzo de 2007): 29–42. http://dx.doi.org/10.1002/polc.5070430106.

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4

Mańko, Zbigniew. "Thermal analysis of engineering structure by the finite strip method". Canadian Journal of Civil Engineering 13, n.º 6 (1 de diciembre de 1986): 761–68. http://dx.doi.org/10.1139/l86-111.

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In order to calculate internal forces of a structure resulting from heat input, it is necessary to know how thermal conduction in relation to specific material properties and boundary conditions determines the temperature distribution at various points of the structure. The finite strip method (FSM) is very suitable for the analysis of heat and temperature distribution, heating, and thermal conduction in engineering structures. It (FSM) is especially suitable for those structures of rectangular shape and of identical edge conditions.The work presented illustrates several examples for various types of engineering structures utilizing the FSM for the analysis of thermal conduction and heat and temperature distribution, such as, for instance, the welding of several joined elements with linear welds made at a specified speed or as point welds. Types of structures subject to thermal analysis may be bars, shields, square and rectangular plates, steel orthotropic plates, steel and combined girders (steel–concrete), and box girders. The obtained results may be useful in engineering practice for determining actual temperatures and load capacities in individual elements of the construction. Key words: structural engineering, thermal analysis, finite strip method, heating, thermal conduction, temperature, engineering structures.

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5

Shen, D. K., S. Gu, K. H. Luo y A. V. Bridgwater. "Analysis of Wood Structural Changes under Thermal Radiation". Energy & Fuels 23, n.º 2 (19 de febrero de 2009): 1081–88. http://dx.doi.org/10.1021/ef800873k.

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6

Okamoto, Ryunosuke, Toyoshi Kondo y Yuji Inada. "Structural Analysis of an Atrium". International Journal of Space Structures 4, n.º 3 (septiembre de 1989): 135–61. http://dx.doi.org/10.1177/026635118900400303.

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This paper describes the structural analysis of an atrium of large and complicated shape. The atrium covers a space surrounded by 3 highrise buildings and 2 lowrise buildings. The analysis was carried out for vertical load (DL + LL), earthquake forces, wind loading and thermal stresses. The construction of the complex started in 1988 and will be completed in 1991.

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7

Barone, Gianluca, Selanna Roccella, Emanuela Martelli y Eliseo Visca. "DTT Thermal Shield: Preliminary thermal analysis". Fusion Engineering and Design 158 (septiembre de 2020): 111725. http://dx.doi.org/10.1016/j.fusengdes.2020.111725.

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8

Tavares, S. y P. Hajela. "Thermal/structural dynamic analysis via approximate analytical approach". Computers & Structures 43, n.º 6 (junio de 1992): 1067–73. http://dx.doi.org/10.1016/0045-7949(92)90007-m.

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9

Thangaratnam, Kari, Divya y Evangeline Kumar. "Integrated Thermal Structural Analysis of Advanced Composite Plates and Shells". Applied Mechanics and Materials 877 (febrero de 2018): 335–40. http://dx.doi.org/10.4028/www.scientific.net/amm.877.335.

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Thermo-structural analysis with advanced composite plates and shells has been performed using Finite element method in order to determine temperature response and associated thermal stress. On solving the Fourier’s heat conduction equation, temperature profile is arrived at, with the assumption of linear/uniform temperature distribution through the thickness. Finite element program is developed for steady-state heat transfer problems using Semiloof shell element. Validation for integrated thermo-structural analysis has been done and compared with the available results from literature. The new results thus obtained are presented in terms of temperature, thermal stress, and displacement. The results obtained will be useful particularly in nuclear reactor vessels and Thermal Protection System (TPS) in aeronautical engineering.

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10

Sikakollu, Ravi Chandra, Lemmy Meekisho y Andres LaRosa. "Coupled Field Analyses in MEMS With Finite Element Analysis". Journal of Heat Transfer 127, n.º 1 (1 de enero de 2005): 34–37. http://dx.doi.org/10.1115/1.1804204.

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This paper deals with the design and analysis of a horizontal thermal actuator common in MEMS applications using Finite Element Analysis; with the objective of exploring means to improve its sensitivity. The influence of variables like voltage and the dimensions of the cold arm of the actuator unit were examined by comprehensive, coupled thermal-stress analyses. Simulation results from this study showed that the sensitivity of the actuator increases with the applied voltage as well as the width of the cold arm of the thermal actuator. An important observation made from this study is that the size and thermal boundary conditions at the fixed end of the actuator primarily control the stroke and the operating temperature of the actuator for a given potential difference between cold and hot arms. The coupled field analyses also provided a design tool for maximizing the service voltage and dimensional variables without compromising the thermal or structural integrity of the actuator.

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11

Singh, Udaybir, Anil Kumar, Nitin Kumar, Narendra Kumar, R. S. Raju, L. P. Purohit y A. K. Sinha. "Thermal and Structural Analysis of MIG for Gyrotron". Journal of Fusion Energy 30, n.º 2 (25 de diciembre de 2010): 176–79. http://dx.doi.org/10.1007/s10894-010-9367-y.

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12

Zhang, Cong Peng, Mei Bo Li y Xue Ke Luo. "Thermal Characteristics Analysis of Aerostatic Direct Drive Rotary Stage". Advanced Materials Research 655-657 (enero de 2013): 287–91. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.287.

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A precision air bearing rotary stage driven by direct-driven motor is proposed. The structural characteristic of the rotary system is introduced, and the mechanism of structural thermal deformation and heat dissipation of aerostatic direct drive rotary stage were analyzed. The simulation models of static and transient temperature field are built, and thermal-structure coupled filed is calculated. The internal steady thermal field diagram and key nodes temperature curve of the rotary stage are obtained. Based on the temperature analysis results, the rotary stage structural deformation is established. The cooling method is provided, and result shows that the cooling way is effective.

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13

Du, Yun Peng, Guo Liang Hu y Fei Dong. "Study on Structural Design and Optimization Analysis for 2V80 Engine Piston Based on Finite Element Analysis". Advanced Materials Research 753-755 (agosto de 2013): 1188–91. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1188.

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According to the experiment of engine bench test and piston's temperature field, the thermal boundary conditions and the mechanical conditions of piston are obtained. Under the condition of mechanical load and thermal load playing, the stress and strain of original engine is simulated and analyzed. Stress concentration and weak structure of original engine is found. The parameter of piston structure is optimized and the optimizations are put forward and analyzed to verify the optimizations' effectiveness. These provide a reference for the digital modeling and numerical analysis to solver engineering problems.

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14

LIU, HSI-HO, YING-NAN LAI y PEDRO CORTOPASSI. "EXPERT SYSTEMS FOR THERMAL AND STRUCTURAL ANALYSIS IN ELECTRONIC SYSTEM DESIGN". International Journal of Pattern Recognition and Artificial Intelligence 01, n.º 02 (agosto de 1987): 223–35. http://dx.doi.org/10.1142/s0218001487000163.

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This paper presents an application of rule-based expert systems to thermal and structural analysis, part of mechanical engineering design, in electronic system design. The purpose of these expert systems is to serve as a consultant or design reviewer. These design expert systems are capable of performing both symbolic reasoning and numeric computation. The advantages of expert systems over conventional systems such as user friendliness, explanation and help facilities, and easy development and maintenance are also shown in this paper. Using system-subsystem tree structure several interrelated expert systems can be integrated into one system, and it is flexible for future expansion or modification. Object-oriented approach is also discussed, which with its unique representation of object could be a useful tool for engineering design.

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15

Jawdhari, Akram y Amir Fam. "Thermal-Structural Analysis and Thermal Bowing of Double Wythe UHPC Insulated Walls". Energy and Buildings 223 (septiembre de 2020): 110012. http://dx.doi.org/10.1016/j.enbuild.2020.110012.

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16

Zhang, Feng, Kai Xiao y Wei Qiang Liu. "Thermal Wrinkling Analysis of the Platelet Thermal Management Devices". Advanced Materials Research 479-481 (febrero de 2012): 550–54. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.550.

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A simplified rectangular plate model is built up with three simply supported sides and one free side for the thermal wrinkling analysis of the platelet thermal management devices. By using the static method and the Galerkin's method, the thermal wrinkling of the structural plates under the uniform and no-uniform thermal stress is analyzed; meanwhile, numerical method for solving the platelets with three simply supported sides and one free side is also tested. The analysis method presents in the article could not only apply to the platelet thermal management devices, but also to the the wall of a rectangular vessel with an open top, and to the distortion of a welded plate structure.

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17

Mao, Shaolin, Changrui Cheng, Xianchang Li y Efstathios E. Michaelides. "Thermal/structural analysis of radiators for heavy-duty trucks". Applied Thermal Engineering 30, n.º 11-12 (agosto de 2010): 1438–46. http://dx.doi.org/10.1016/j.applthermaleng.2010.03.003.

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18

Gorla, Rama Subba Reddy y Atul Tanawade. "Probabilistic structural and thermal analysis of a gasketed flange". Applied Thermal Engineering 59, n.º 1-2 (septiembre de 2013): 535–41. http://dx.doi.org/10.1016/j.applthermaleng.2013.06.037.

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19

Wang, Xianewei, Peng Han, Qing He y Xiulian Li. "The Thermal and Structural Analysis of Vertical Stability Coil". Manufacturing Technology 20, n.º 1 (6 de agosto de 2020): 120–25. http://dx.doi.org/10.21062/mft.2020.002.

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20

Mei, Yi, Fang Ping Wang, Qiao Ying Liu y Yu Tao Mao. "Finite Element Analysis on Thermal Structures of Heavy Machinery Gearbox". Advanced Materials Research 228-229 (abril de 2011): 651–55. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.651.

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To solve the thermal deformation caused by thermal load of heavy machinery gearbox, it is established that coupled analysis model to carry out the analysis on box structure's thermal characteristic by using the finite element thermal structure coupled analysis. The model figures out the steady-state temperature distribution of the box, the results will be the boundary condition for box thermal structural coupled analysis. It is calculated which stress distribution and displacement cloud pictures of the box under the interaction of thermal and structural load. The results show that deformation of the heavy machinery gearbox is cased by structural loads and thermal loads. And the thermal load is an important factor that controls box deformation to ensure the accuracy and reliability of heavy gear transmission, which can not be ignored.

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21

Belhocine, Ali y Mostefa Bouchetara. "Structural and Thermal Analysis of Automotive Disc Brake Rotor". Archive of Mechanical Engineering 61, n.º 1 (1 de marzo de 2014): 89–113. http://dx.doi.org/10.2478/meceng-2014-0005.

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Abstract The main purpose of this study is to analyze the thermomechanical behavior of the dry contact between the brake disc and pads during the braking phase. The simulation strategy is based on softawe ANSYS11. The modeling of transient temperature in the disc brake is actually used to identify the factor of geometric design of the disc to install the ventilation system in vehicles. The thermal-structural analysis is then used with coupling to determine the deformation established and the Von Mises stress in the disc, the contact pressure distribution in pads. The results are satisfactory compared to those of the specialized literature.

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22

Pradeep, G. M., T. Sankaramoorthy, M. Elango y T. NaveenKumar. "Structural Analysis and Mechanical Properties of Thermal Battery by Flexible PCM". Journal of University of Shanghai for Science and Technology 23, n.º 06 (17 de junio de 2021): 489–98. http://dx.doi.org/10.51201/jusst/21/05276.

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An ancient BTM with PCM was controlled through the issues of high inflexibility of phase change material, leakage problems and very low conductivity in thermal energy. This research paper reports a facile batter thermal management and creativity along with induced non-rigid phase change material composites. This battery model can be determined by the flexible phase change material composites along with an intervention due to the recovery in shape and non-rigidity of flexible phase change components. This assemble was modeled to be efficient and compact without any requirement for grease. A constant state reveals various stages of phase change material which has various properties in thermal efficiency. A unified state was linked with the recovery shape of flexible phase change components which can cause a low resistance in FCPCM and battery. Battery thermal management demonstrates the perfect process of thermal control power. If the battery was discharged from 90 to 10% of charge, then the temperature of flexible phase change components depends upon battery thermal management. It was 44.5°C during the 3.5°C rate which was 29.8°C lower than no phase change material. It also reveals low-temperature oscillation inside the long-time process and range of heat of recovered phase change material. The performance of battery thermal management and its flexibility will give perceptions of passive battery thermal management systems.

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23

Tamma, Kumar K. y Sudhir B. Railkar. "Transfinite element methodology towards a unified thermal/structural analysis". Computers & Structures 25, n.º 5 (enero de 1987): 649–60. http://dx.doi.org/10.1016/0045-7949(87)90157-x.

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24

Prakash, T., M. K. Singha y M. Ganapathi. "Thermal postbuckling analysis of FGM skew plates". Engineering Structures 30, n.º 1 (enero de 2008): 22–32. http://dx.doi.org/10.1016/j.engstruct.2007.02.012.

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25

Alaria, M. K., V. Bhomia y A. K. Sinha. "Thermal and Structural Analysis of RF Window for Gyrotron". Journal of Fusion Energy 31, n.º 3 (28 de agosto de 2011): 269–72. http://dx.doi.org/10.1007/s10894-011-9471-7.

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26

Yuan, Zhao, Jun-jia He, Yuan Pan, Xiao-gen Yin, Can Ding, Shao-fei Ning y Hong-lei Li. "Thermal Analysis of Air-Core Power Reactors". ISRN Mechanical Engineering 2013 (24 de marzo de 2013): 1–6. http://dx.doi.org/10.1155/2013/865015.

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A fluid-thermal coupled analysis based on FEM is conducted. The inner structure of the coils is built with consideration of both the structural details and the simplicity; thus, the detailed heat conduction process is coupled with the computational fluid dynamics in the thermal computation of air-core reactors. According to the simulation results, 2D temperature distribution results are given and proved by the thermal test results of a prototype. Then the temperature results are used to calculate the heat flux to predict the detailed heat transfer process in the packages of the reactors. The study in this paper may be useful in the design optimization in air-core reactors.

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27

Al Sadi, A., E. Bonetti, P. Mattioli y G. Valdré. "Internal friction, thermal and structural analysis of nanocrystalline aluminium". Journal of Alloys and Compounds 211-212 (septiembre de 1994): 489–93. http://dx.doi.org/10.1016/0925-8388(94)90550-9.

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28

Chang, Byungik, Brent M. Phares, Hao Zou y Todd Couch. "Thermal Analysis of Highway Overhead Support Structures". Transportation Research Record: Journal of the Transportation Research Board 2406, n.º 1 (enero de 2014): 32–41. http://dx.doi.org/10.3141/2406-04.

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29

Wang, Ligang y Tao Chen. "Structural intensity analysis of the cantilevered plate under thermal load". Thin-Walled Structures 139 (junio de 2019): 209–18. http://dx.doi.org/10.1016/j.tws.2019.03.017.

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30

Hadavand, M., M. Yaghoubi y H. Emdad. "Thermal analysis of vaulted roofs". Energy and Buildings 40, n.º 3 (enero de 2008): 265–75. http://dx.doi.org/10.1016/j.enbuild.2007.02.024.

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31

Sun, Hong Fei, Wei Hou, Yan Yan Wang y Rui Ling Lu. "Thermal Power Plant Bidding Strategies IDSS Analysis and Design". Advanced Materials Research 717 (julio de 2013): 899–903. http://dx.doi.org/10.4028/www.scientific.net/amr.717.899.

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The bidding decision-making of power plant was a complicated system engineering which had high complexity and real-time, so power plant must rely on the support of information technology to complete the bidding. Therefore, how to use all kinds of advanced information technologies had become one of topics which broad power enterprises must face. This paper established a kind of intelligent decision support system (IDSS) which was based on multi-agent intelligent decision support system and combined with the data warehouse, data mining and on-line analysis processing. Compared with the former information management, IDSS had so many advantages in auxiliary support for decision-making. If it was applied to power plant bidding strategies or other semi-structural and unstructured problems in power market, it would provide good auxiliary support for them.

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32

Wang, Simin, Guanping Jian, Juan Xiao, Jian Wen, Zaoxiao Zhang y Jiyuan Tu. "Fluid-thermal-structural analysis and structural optimization of spiral-wound heat exchanger". International Communications in Heat and Mass Transfer 95 (julio de 2018): 42–52. http://dx.doi.org/10.1016/j.icheatmasstransfer.2018.03.027.

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33

Thompson, R. L. "Structural Analysis Method Development for Turbine Hot Section Components". Journal of Engineering for Gas Turbines and Power 111, n.º 2 (1 de abril de 1989): 286–300. http://dx.doi.org/10.1115/1.3240250.

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This paper summarizes the structural analysis technologies and activities of the NASA Lewis Research Center’s gas turbine engine Hot Section Technology (HOST) program. The technologies synergistically developed and validated include: time-varying thermal/mechanical load models; component-specific automated geometric modeling and solution strategy capabilities; advanced inelastic analysis methods; inelastic constitutive models; high-temperature experimental techniques and experiments; and nonlinear structural analysis codes. Features of the program that incorporate the new technologies and their application to hot section component analysis and design are described. Improved and, in some cases, first-time three-dimensional nonlinear structural analyses of hot section components of isotropic and anisotropic nickel-base superalloys are presented.

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34

Lang, Jiaqi, Chundong Hu, Yuanlai Xie y Yunhua Tong. "Optimization Analysis of the Structural Design of NNBI Cryosorption Pumps". Energies 14, n.º 12 (18 de junio de 2021): 3628. http://dx.doi.org/10.3390/en14123628.

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Cryosorption pumps create a vacuum by adsorbing gas at low temperature through porous solid adsorbents. The transmission probability of gas molecules and heat loads of cryosorption pumps are important factors affecting its performance. Herein, Molflow software based on the Monte Carlo principle is used to analyze the effects of the structural design of cryosorption pumps on transmission probability. The influence of structural design on radiation heat transfer is analyzed by ANSYS Steady-State Thermal software. This provides a reference for the design of a cryosorption pump to validate the prototype of a neutral beam injector for the China Engineering Fusion Experimental Reactor (CFETR).

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35

Srinivas Reddy, Pala, T. Victor Babu y S. Santosh Kumar. "Dynamic Mechanical Analysis and Thermo-Gravimetric Analysis on Chopped Strand Mat Reinforced with Polyester Resin and Graphite Powder". Advanced Materials Research 1148 (junio de 2018): 48–60. http://dx.doi.org/10.4028/www.scientific.net/amr.1148.48.

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Fiber reinforced plastics have been widely used for manufacturing aircrafts and spacecrafts structural parts because of their high mechanical, physical properties. These are used in manufacturing of structural composites, printed circuit boards and in a wide range of special-purpose products which are included in medical field as well. Within reinforcing materials chopped strand mats are the most frequently used in structural constructions because of their properties such as viscoelasticity, strength and high thermal stability. The present work focuses on mechanical and thermal properties of chopped strand mat reinforced with polyester resin and filler as graphite powder (which has high melting point) in different weight fractions. Evaluation of material properties is tested using Thermo-Gravimetric Analysis and Dynamic Mechanical analysis at a standard temperature ranging between 20°C - 460°C and evaluated. The results show that inclusion of graphite powder in chopped strand mat exhibit better enhancement in results when compared.

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36

Clayton, A. M. y N. M. Irvine. "Structural Assessment Techniques for Thermal Striping". Journal of Pressure Vessel Technology 109, n.º 3 (1 de agosto de 1987): 305–9. http://dx.doi.org/10.1115/1.3264869.

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Life assessment techniques for components subject to random surface temperature fluctuations (thermal striping) are outlined. The approach depends on the thermal information available and ranges from simple evaluation of the initiation of fatigue cracking to the complete analysis of crack growth. A new bounding technique is described, and some uncertainties in the various analyses listed.

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37

Xu, Q. y C. Burgoyne. "Thermal-creep analysis of concrete bridges". Proceedings of the Institution of Civil Engineers - Bridge Engineering 158, n.º 3 (septiembre de 2005): 107–15. http://dx.doi.org/10.1680/bren.2005.158.3.107.

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38

Xu, Suqiang y Ramana V. Grandhi. "Multipoint approximation development: thermal structural optimization case study". International Journal for Numerical Methods in Engineering 48, n.º 8 (20 de julio de 2000): 1151–64. http://dx.doi.org/10.1002/(sici)1097-0207(20000720)48:8<1151::aid-nme938>3.0.co;2-o.

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39

Li, Wei Hong, Cong Li y Yan Qiu. "Thermal Stress Analysis of Photovoltaic Hollow Glass Based on ANSYS". Key Engineering Materials 544 (marzo de 2013): 339–42. http://dx.doi.org/10.4028/www.scientific.net/kem.544.339.

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This article through to hollow photovoltaic glass service in the process of temperature test, by using the finite element simulation of the temperature change caused by the thermal stress, using the finite element simulation of the temperature change caused by the thermal stress. According to the heat conduction equation and boundary condition, derivation hollow photovoltaic through the finite element software to hollow photovoltaic glass plate thermal stress for numerical simulation and research. Adopted in structural analysis directly define temperature load method analysis force hollow photovoltaic glass thermal stress. Use the finite element software to hollow photovoltaic glass plate thermal stress for numerical simulation and research. For the known temperature field distribution situation, adopted in structural analysis directly define temperature load method analysis force hollow photovoltaic glass thermal stress. Through the finite element software ANSYS to calculate different unit was carried out and the numerical simulation, the results show that the analytical solution and the numerical solution has good goodness of fit. The proposed calculation formula for engineering design has the certain reference value.

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40

DUAN, JIN, ZHI-HAI XIANG y MING-DE XUE. "THERMAL–DYNAMIC COUPLING ANALYSIS OF LARGE SPACE STRUCTURES CONSIDERING GEOMETRIC NONLINEARITY". International Journal of Structural Stability and Dynamics 08, n.º 04 (diciembre de 2008): 569–96. http://dx.doi.org/10.1142/s0219455408002806.

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In this paper, a beam element is derived for the thermal–dynamic coupling analysis by the updated Lagrangian formulation. The nodal transformation matrix of the element is obtained by dividing the rigid body rotation of the beam element into the relative translational displacements and axial rotation. With this transformation matrix, the interaction between the structural deformation and the absorbed heat flux can be formulated and the thermal–structural coupling effect is thus considered. The validity of the proposed method is illustrated by comparing the obtained results with the numerical, analytical or experimental results available in the literature. Then the method is employed to analyze the thermal–structural responses of the Hubble Space Telescope (HST) solar array. From the results, a reasonable explanation can be given for the failure of the telescope in 1990.

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41

Takahashi, Tsuyoshi, Yoshio Sugimura y Katsuhiko Sasaki. "Thermal Plastic-Elastic Analysis in Consideration of Metallurgical Microstructure". Journal of Manufacturing Science and Engineering 126, n.º 1 (1 de febrero de 2004): 25–32. http://dx.doi.org/10.1115/1.1645875.

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Depending on casting methods, aluminum alloy cylinder heads differ greatly in quality and local strength as well as overall strength. Obviously, casting methods largely affect the durability of a cylinder head. Therefore, in order to precisely evaluate the durability of a newly-designed cylinder head by CAE, it is necessary to introduce a new method with the effects of a casting method taken into account. In our research, a method has been devised to be used in CAE in such processes from engineering to manufacturing for evaluation. More specifically, by using the method, metallurgical microstructure of cast aluminum alloy is analyzed by dividing cylinder head into such domains as lower deck, middle and upper deck parts for mechanical properties and a casting defect of porosity. The domain profile information on mechanical properties and porosity has helped us improve accuracy in the structural analysis.

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42

Nowak, P. y M. Skłodkowski. "Multicriteria Analysis of Selected Building Thermal Insulation Solutions". Archives of Civil Engineering 62, n.º 3 (1 de septiembre de 2016): 137–48. http://dx.doi.org/10.1515/ace-2015-0088.

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Abstract The purpose of this paper is to present and analyse the decision-making problem faced by a future house owner - selection of the optimal solution of building thermal insulation in relation to the selected criteria, both related to costs and future benefits. The problem of selecting the best solutions in the construction sector is widely discussed in the science literature. In this paper, the authors decided to solve the raised problem by using the Entropy method.

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43

Noorzaei, J., K. H. Bayagoob, W. A. Thanoon y M. S. Jaafar. "Thermal and stress analysis of Kinta RCC dam". Engineering Structures 28, n.º 13 (noviembre de 2006): 1795–802. http://dx.doi.org/10.1016/j.engstruct.2006.03.027.

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Argyris, John y Lazarus Tenek. "Recent Advances in Computational Thermostructural Analysis of Composite Plates and Shells With Strong Nonlinearities". Applied Mechanics Reviews 50, n.º 5 (1 de mayo de 1997): 285–306. http://dx.doi.org/10.1115/1.3101708.

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The article presents some modern developments in computational technology for the nonlinear thermostructural analysis of laminated composite plates and shells of arbitrary geometry. Following a review of the current state of the art, it particularly emphasizes on new finite element methodologies that can be applied to the study of complex laminated shells both thermally and structurally using the same topology constructed via simple simplex triangular elements based on respective first-order lamination theories. Very high temperatures are imposed on some examples in order to demonstrate the high effect of nonlinearity. In addition, the authors want to prepare the ground for the advent of new high-temperature materials. For the numerical examples presented comparison with reference solutions is made where available. Thus the present overview intends to impact a continuing discussion on the unification and integration of thermal and structural analyses methods as they apply to large and complex high-temperature composite shell structures under combined thermal and mechanical loading. In this respect it also intends to contribute to the on-going efforts of integrating thermal and structural engineering codes and the development of suitable interfaces. Future research trends are also identified.

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45

Hocine, A., F. K. Achira y H. Ghouaouala. "Coupled Structural/Thermal Analysis of Cylindrical Part of Multilayered Composite Vessel". Advanced Materials Research 445 (enero de 2012): 589–94. http://dx.doi.org/10.4028/scientific5/amr.445.589.

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46

Dems, K. y Z. Mróz. "Analysis and design of thermo-mechanical interfaces". Bulletin of the Polish Academy of Sciences: Technical Sciences 60, n.º 2 (1 de octubre de 2012): 205–13. http://dx.doi.org/10.2478/v10175-012-0027-4.

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Abstract. An elastic structure subjected to thermal and mechanical loading with prescribed external boundary and varying internal interface is considered. The different thermal and mechanical nature of this interface is discussed, since the interface form and its properties affect strongly the structural response. The first-order sensitivities of an arbitrary thermal and mechanical behavioral functional with respect to shape and material properties of the interface are derived using the direct or adjoint approaches. Next the relevant optimality conditions are formulated. Some examples illustrate the applicability of proposed approach to control the structural response due to applied thermal and mechanical loads.

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47

Abdulrazeg, Aeid Ali, Jamaloddin Noorzaei, Mohamed Saleh Jaafar, Parvin Khanehzaei y Thamer Ahmed Mohamed. "THERMAL AND STRUCTURAL ANALYSIS OF RCC DOUBLE-CURVATURE ARCH DAM". JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 20, n.º 3 (9 de junio de 2014): 434–55. http://dx.doi.org/10.3846/13923730.2013.801897.

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This paper focuses on the development, verification and application of a three-dimensional finite element code for coupled thermal and structural analysis of roller compacted concrete arch dams. The Karun III Arch dam located on Karun River, Iran, which was originally designed as a conventional concrete arch dam, has been taken for the purpose of verification of the finite element code. In this study, RCC technology has been ascertained as an alternative method to reduce the cost of the project and make it competitive. A numerical procedure to simulate the construction process of RCC arch dams is presented. It takes into account the more relevant features of the behavior of concrete such as hydration, ageing and creep. A viscoelastic model, including ageing effects and thermal dependent properties is adopted for the concrete. The different isothermal temperature influence on creep and elastic modulus is taken into account by the maturity concept. Crack index is used to assess the occurrence of crack and evaluate the level of safety of the dam. This study demonstrates that, high tensile stress concentration has been observed at the lower part and the abutment boundaries of the dam.

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48

Jackson, N. Mike y Ted S. Vinson. "Analysis of Thermal Fatigue Distress of Asphalt Concrete Pavements". Transportation Research Record: Journal of the Transportation Research Board 1545, n.º 1 (enero de 1996): 43–49. http://dx.doi.org/10.1177/0361198196154500106.

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Thermal cracking of asphalt concrete pavements is responsible for millions of dollars in annual maintenance and rehabilitation costs in the United States and Canada. Thermal cracking typically is associated with low temperatures in northern climates and at high elevations. Another form of thermal cracking, known as thermal fatigue cracking, has been proposed by several researchers as a potential mode of distress in regions with relatively moderate climates. The objectives were to evaluate the possibility of the occurrence of the thermal fatigue cracking mode of distress and to identify a suitable laboratory test procedure to facilitate a mechanistic analysis of this mode of distress. The most promising test procedures evaluated included the direct tensile creep test and the thermal stress restrained specimen test. The results suggest that thermal fatigue distress in asphalt concrete mixtures is not a viable mode of distress in the absence of environmental aging. From the data presented and results documented by others, it is evident that distress often attributed to thermal fatigue cracking is more likely the result of low-temperature cracking of environmentally aged mixtures or subgrade-related distress. It is concluded that fatigue distress due to thermal loading of semirestrained pavements does not occur.

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Goworek, Jacek y Wojciech Stefaniak. "Thermal Analysis in Studies of Structural Heterogeneity in Active Carbons". Adsorption Science & Technology 14, n.º 1 (febrero de 1996): 39–46. http://dx.doi.org/10.1177/026361749601400104.

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The thermal desorption of benzene and methanol was measured using a derivatograph. Pore size distributions of active carbons were determined on the basis of thermogravimetric curves using the Kelvin equation. Total pore volumes and volumes of mesopores were compared with those derived from adsorption isotherms of benzene vapour.

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50

Górka, Jacek. "Analysis of Simulated Welding Thermal Cycles S700MC Using Thermal Imaging Camera". Advanced Materials Research 837 (noviembre de 2013): 375–80. http://dx.doi.org/10.4028/www.scientific.net/amr.837.375.

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In this paper an influence of simulated thermal cycle on properties and HAZ structure of 10 mm thick S700MC steel plates. The introduction of thermomechanically processed steels with high yield and relatively low carbon equivalent, will significantly reduce the time of welding works by reducing the preheating temperature, or even complete removal of this processing step, furthermore reduction of cross-sectional areas of structural elements, making welded structures with the same capacity will be more slender and lighter. The simulation of thermal cycles was carried out on a specially built test stand equipped with resistive heating source infrared camera VarioCam Head HR with 50 mm lens and a computer with software IRBIS 3 plus. Simulation was prepared for simple and complex thermal cycle. Simulation studies of thermal cycles consisted of resistive heating of samples prepared for the impact test. Single thermal cycles were simulated at temperatures ranging from 400 to 1300 oC, 100 oC and the cycle complex. For each temperature three repeats were carried out. Specimens were tested on impact, strength test and also hardness and metallographical tests. The study showed that there is a possibility to use a purpose built system to simulate simple and complex thermal cycles of S700 MC steel in specific ranges of the cooling time t8/5. Analysis of the results of the study showed that the welding thermal cycle strongly influences the structural changes and phase in the HAZ zone of S700 MC steel. Areas of HAZ heated to high temperatures above 1000 [°C], show a sudden drop of toughness to unacceptable levels of impact strength (27 [J/cm2]). This sharp decrease in toughness is associated with uncontrolled separation processes of MX phases and dissolution of carbides, niobium and vanadium carbonitrides in austenite during heating. The study also showed that the chemical composition of steel and especially titanium and aluminium content is sufficient to bind in the HAZ free nitrogen and reduce the aging process. The control of the amount of heat introduced into the joint area during welding will reduce the adverse separation processes in the weld and HAZ which will ensure adequate toughness of the connection. Precise knowledge of the phenomena occurring in the HAZ during the thermal cycle can impact the ability to control properties and structure of the welded joint.

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