DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

NUMERICAL PREDICTION OF RESIDUAL STRESSES IN OPEN-ENDED THICK-WALLED CROSS-PLY FILAMENT WOUND FIBER-REINFORCED CYLINDERS

Vestnik MGSU 11/2015
  • Turusov Robert Alekseevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Physical and Mathematical Sciences, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Memarianfard Hamed - Moscow State University of Civil Engineering (National Research University) (MGSU) postgraduate student, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 80-89

In this paper a three-dimensional finite element analysis employed to predict thermal residual stresses field which arises during the cooling stage at the free edges of a thick walled filament wound cylinder with cross-ply lamination. The inner radius of composite is 50 mm and outer radius is 75 mm and the thickness of steel mandrel is 3 mm. The results showed that the radial stresses near the free ends of the cylinder increased two times compared to radial stresses in the middle of the cylinder and interlaminar shear stresses exceeded 6 MPa close to the free edges.Thus, a two-dimensional stress analysis does not fully reflect the complex state of stress of thick-walled cross-ply filament wound cylinders.

DOI: 10.22227/1997-0935.2015.11.80-89

References
  1. Casari P., Jacquemin F., Davies P. Characterization of Residual Stresses in Wound Composite Tubes. Applied Science and Manufacturing. February 2006, vol. 37, no. 2, pp. 337—343. DOI: http://dx.doi.org/10.1016/j.compositesa.2005.03.026.
  2. Korotkov V.N., Turusov R.A., Andreevska G.D., Rosenberg B.A. Temperature Stresses in polymers and composites. Mechanics of composites. NY, March 1981, pp. 290—295.
  3. Korotkov V.N., Turnsov R.A., Rozenberg B.A. Thermal Stresses in Cylinders Made of Composite Material During Cooling and Storing. Mechanics of Composite Materials. March 1983, vol. 19, no. 2, pp. 218—222. DOI: http://dx.doi.org/10.1007/BF00604228.
  4. Korotkov V.N., Turusov R.A., Dzhavadyan É.A., Rozenberg B.A. Production Stresses During the Solidification of Cylindrical Articles Formed from Polymer Composite Materials. Mechanics of Composite Materials. January 1986, vol. 22, no. 1, pp. 99—103.
  5. Afanas’ev Yu.A., Ekel’chik V.S., Kostritskii S.N. Temperature Stresses in Thick-Walled Orthotropic Cylinders of Reinforced Polymeric Materials on Nonuniform Cooling. Mechanics of Composite Materials. July 1981, vol. 16, no. 4, pp. 451—457. DOI: http://dx.doi.org/10.1007/BF00604863.
  6. Hyer M.W., Rousseau C.Q. Thermally Induced Stresses and Deformations in Angle-Ply Composite Tubes. Journal of Composite Materials. 1987, vol. 21, no. 5, pp. 454—480. DOI: http://dx.doi.org/10.1177/002199838702100504.
  7. Roos R., Kress G., Barbezat M., Ermanni P. Enhanced Model For Interlaminar Normal Stress In Singly Curved Laminates. Composite Structures. 2007, vol. 80, no. 3, pp. 327—333. DOI: http://dx.doi.org/10.1016/j.compstruct.2006.05.022.
  8. Liu K.S, Tsai S.W. A Progressive Quadratic Failure Criterion for a Laminate. Composites Science and Technology. 1998, vol. 58, no. 7, pp. 1023—1032. DOI: http://dx.doi.org/10.1016/S0266-3538(96)00141-8.
  9. Puppo A.H, Evensen H.A. Interlaminar Shear in Laminated Composite under Generalized Plane Stress. J Compos Mater. 1970, vol. 4, pp. 204—220.
  10. Pipes R.B., Pagano N.J. Interlaminar Stresses in Composite Laminates under Uniform Axial Extension. Journal of Composite Materials. 1970, vol. 4, pp. 538—548.
  11. Rybicki E.F. Approximate Three-Dimensional Solutions for Symmetric Laminates under In-Plane Loading. Journal of Composite Materials. 1971, vol. 5, no. 3, pp. 354—360. DOI: http://dx.doi.org/10.1177/002199837100500305.
  12. Wang A.S.D., Crossman F.W. Calculation of Edge Stresses in Multi-Layered Laminates by Sub-Structuring. Journal of Composite Materials. April 1978, vol. 12, no. 1, pp. 76—83. DOI: http://dx.doi.org/10.1177/002199837801200106.
  13. Murthy P.L.N., Chamis C.C. Free-Edge Delamination: Laminate Width and Loading Conditions Effects. Journal of Composites, Technology and Research. 1989, vol. 11 (1), pp. 15—22. DOI: http://dx.doi.org/10.1520/CTR10144J.
  14. Dong S.B., Pister K.S., Taylor R.L. On the Theory of Laminated Anisotropic Shells and Plates. Journal of the Aerospace Sciences. 1962, vol. 29, no. 8, pp. 969—975.
  15. Turusov R.A., Korotkov V.N., Rogozinskii A.K., Kuperman A.M., Sulyaeva Z.P., Garanin V.V., Rozenberg B.A. Technological Monolithic Character of Shells Formed from Polymeric Composition Materials. Mechanics of Composite Materials. 1988, vol. 23, no. 6, pp. 773—777. DOI: http://dx.doi.org/10.1007/BF00616802.
  16. Autar K. Kaw. Mechanics of Composite Materials. Second Edition, CRC Press, November 2, 2005, p. 96.
  17. Zienkiewicz O.C., Taylor R.L. The Finite Element Method for Solid and Structural Mechanics. Sixth Edition, Butterworth-Heinemann, 2005, p. 8.
  18. Bathe Klaus-Jürgen. Finite Element Procedures. Prentice Hall, 1996, p. 171.
  19. René De Borst, Mike A. Crisfield, Joris J.C. Remmers, Clemens V. Verhoosel, Nonlinear Finite Element Analysis of Solids and Structures. Wiley, 2012, 540 p.
  20. Zienkiewicz O.C., Taylor R.L. The Finite Element Method: Its Basis and Fundamentals. Sixth Edition, Butterworth-Heinemann, 2005, p. 121.

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NUMERICAL AND EXPERIMENTAL STUDIES OF MONOLITHIC CHARACTER OF THICK-WALLED ANISOTROPIC SHELL

Vestnik MGSU 7/2016
  • Memarianfard Mahsa - K.N. Toosi University of Technology Associate Professor, Department of Engineering Ecology, K.N. Toosi University of Technology, 470 Mirdamad Ave. West, 19697, Tehran, Iran; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Turusov Robert Alekseevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Physical and Mathematical Sciences, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Memarianfard Memaryanfard - Moscow State University of Civil Engineering (National Research University) (MGSU) postgraduate student, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 36-45

This paper presents t experimental and numerical studies of cracking in the thick-walled filament-wound cylindrical shells made of fiber reinforced plastic during the manufacturing process (specifically, in the process of curing and cooling). The experiments have shown that, when the cylinder is cooled by optimum cooling regime, at the end of the cooling process the obtained cylinder is monolithic and without ring cracking. In this regard, the residual thermal stresses in thick-walled cylinder in the cooling process is calculated using finite element method with account for transient heat conduction and the temperature dependence of the mechanical properties of the material and the viscoelastic behavior of the polymer. The calculations are conducted for cooling in standard and optimum regimes. The results showed that the maximum radial stress in the most dangerous initial area is several times less when the cylinder is cooled down in the optimum regime than when it is cooled in the standard regime.

DOI: 10.22227/1997-0935.2016.7.36-45

References
  1. Ekel’chik V.S., Klyunin O.S. Novyy podkhod k sozdaniyu oblegchennykh metallo-plastikovykh ballonov vysokogo davleniya dlya szhatykh gazov [New Approach to the Creation of Lightweight Reinforced-Plastic High Pressure Cylinders for Compressed Gases]. Voprosy materialovedeniya [Problems of Materials Science]. 2003, no. 2 (34), pp. 26—31. (In Russian)
  2. Turusov R.A., Memaryanfard H. Diskretnaya model’ v analize ostatochnykh napryazheniy odnonapravlennykh namotochnykh tsilindrov iz armirovannogo plastika v protsesse okhlazhdeniya [Discrete Model in the Analysis of Residual Stresses in Unidirectional Winding Cylinders Made of Fiber-Reinforced Plastic]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2015, no. 1, pp. 27—35. (In Russian)
  3. Turusov R.A., Korotkov V.N., Rogozinskiy A.K., Kuperman A.M., Sulyaeva Z.P. Tekhnologicheskaya monolitnost’ obolochek iz polimernykh kompozitnykh materialov [Monolithic Technology of the Shells of Polymer Composite Materials]. Mekhanika kompozitnykh materialov [Mechanics of Composite Materials]. 1987, no. 6, pp. 1072—1076. (In Russian)
  4. Turusov R.A., Korotkov V.N., Rogozinskiy A.K. Temperaturnye napryazheniya v tsilindre iz kompozitnogo materiala v protsesse ego okhlazhdeniya i khraneniya [Thermal Stresses in a Cylinder Made of a Composite Material in the Process of Cooling and Storage]. Mekhanika kompozitnykh materialov [Mechanics of Composite Materials]. 1983, no. 2, pp. 290—295. (In Russian)
  5. Korotkov V.N., Dubovitskiy A.Ya., Turusov R.A., Rozenberg B.A. Teoriya optimizatsii rezhima okhlazhdeniya tolstostennykh izdeliy iz kompozitnykh materialov [Optimization Theory of Cooling Regime of Thick-Walled Products Made of Composite Materials]. Mekhanika kompozitnykh materialov [Mechanics of Composite Materials]. 1982, no. 6, pp. 1051—1055. (In Russian)
  6. Bolotin V.V., Blagonadezhin V.L., Varushkin E.M., Perevozchikov V.G. Ostatochnye napryazheniya v namotochnykh elementakh konstruktsiy iz armirovannykh plastikov [Residual Stresses in Winding Elements of Constructions Made of Reinforced Plastics]. Moscow, Izdatel’stvo TsNII informatsii Publ., 1977. (In Russian)
  7. Bolotin V.V., Vorontsov A.N. Formation of Residual Stresses in Components Made out of Laminated and Fibrous Composites during the Hardening Process. Mechanics of Composites. September 1976, vol. 12, no. 5, pp. 701—705. DOI: http://dx.doi.org/10.1007/BF00856324.
  8. Afanas’ev Yu.A., Ekel’chik B.C., Kostritskiy S.N. Temperaturnye napryazheniya v tolstostennykh ortotropnykh tsilindrakh iz armirovannykh polimernykh materialov pri neodnorodnom okhlazhdenii [Temperature Stresses in Thick-Walled Orthotropic Cylinders Made of Reinforced Polymer Materials in Case of Inhomogeneous Cooling]. Mekhanika kompozitnykh materialov [Mechanics of Composite Materials]. 1980, no. 4, pp. 651—660. (In Russian)
  9. Hyer M.W., Rousseau C.Q. Thermally-Induced Stresses and Deformations in Angle-Ply Composite Tubes. Journal of Composite Materials. 1987, vol. 21, no. 5, pp. 454—480. DOI: http://dx.doi.org/10.1177/002199838702100504.
  10. Jerome T. Tzeng. Prediction and Experimental Verification of Residual Stresses in Thermoplastic Composites. Journal of Thermoplastic Composite Materials. April 1995, vol. 8, no. 2, pp. 163—179. DOI: http://dx.doi.org/10.1177/089270579500800202.
  11. Tzeng T., Chien L.S. A Thermal Viscoelastic Analysis for Thick-Walled Composite Cylinders. Journal of Composite Materials March. 1995, vol. 29, no. 4, pp. 525—548.
  12. Wisnom M.R., Stringer L.G., Hayman R.J., Hinton M.J. Curing Stresses in Thick Polymer Composite Components. Part I: Analysis. 12th International Conference on Composite Materials, Paris, July 1999. Woodhead Publishing Ltd, 1999, p. 859. Available at: http://iccm-central.org/Proceedings/ICCM12proceedings/site/papers/pap859.pdf.
  13. Li C., Wisnom M.R., Stringer L.G., Hayman R., Hinton M.J. Effect of Mandrel Contact on Residual Stresses During Cure of Filament Wound Tubes. 8th International Conference on Fibre Reinforced Composites, 13—15 September 2000, Newcastle-upon-Tyne, UK. 2000, pp. 105—112.
  14. Gorbatkina Yu.A. Adhesive Strength of Fibre-Polymer Systems. New York, London, Ellis Horwood, 1992, 264 p.
  15. Turusov R.A. Adgezionnaya mekhanika [Adhesion Mechanics]. Moscow, MGSU Publ., 2015, 230 p. (In Russian)
  16. Babich V.F. Issledovanie vliyaniya temperatury na mekhanicheskie kharakteristiki zhestkikh setchatykh polimerov : avtoreferat dissertatsii … kandidata tekhnicheskikh nauk [Study of Temperature Influence on the Mechanical Properties of Rigid Cross-Linked Polymers : Abstract of the Dissertation of Candidate of Technical Sciences]. Moscow, 1966, 12 p. (In Russian)
  17. Gurevich G.I. Deformiruemost’ sred i rasprostranenie seysmicheskikh voln [Deformability of Media and Propagation of Seismic Waves]. Moscow, Nauka Publ., 1974, 482 p. (In Russian)
  18. Nemat-Nasser S., Hori M. Micromechanics: Overall Properties of Heterogeneous Materials. Amsterdam, Elsevier Science Publishers, 1993.
  19. Aboudi J. Mechanics of Composite Materials, a Unified Micromechanical Approach. Amsterdam, Elsevier Science Publishers, 1991.
  20. Zihui Xia, Yunfa Zhang, Fernand Ellyin. A Unified Periodical Boundary Conditions for Representative Volume Elements of Composites and Applications. International Journal of Solids and Structure. April 2003, vol. 40, issue 8, pp. 1907—1921. DOI: http://dx.doi.org/10.1016/S0020-7683(03)00024-6.
  21. Zheng-Ming Huang, Li-min Xin. Stress Concentration Factors of Matrix in a Compo-Site. Subjected to Transverse Loads. ICCM 2014, July 28—30. Cambridge, 3 p. Available at: http://www.sci-en-tech.com/ICCM2014/PDFs/321-979-1-PB.pdf.

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The cooling processes of metal billets

Vestnik MGSU 3/2014
  • Miram Andrey Olegovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Heat Engineering and Heat and Gas Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-92; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Belov Yuriy Vital'evich - Moscow State University of Civil Engineering (MGSU) postgraduate student, assistant, Department of Heat Engineering and Heat and Gas Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-92; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Belov Vitaliy Mikhaylovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Heat Engineering and Heat and Gas Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-92; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 141-148

The article describes various methods for solving problems of nonstationary heat transfer. Nonstationary heat transfer is characterized by the fact that the temperature changes not only from point to point, but also in time. The process of cooling metal blanks must be considered a transient thermal conductivity. When solving the problem of cooling metal blanks we need to find the temperature change in the section. The authors show the complexity of the tasks of nonstationary heat transfer. If we consider the process of cooling metal billets as a complex process, in which the addition of nonstationary heat transfer is presented as a process of heat transfer by radiation, great probability of errors in calculations occurs. There is the feasibility of the use of experimental researches of cooling processes for metal blanks after continuous casting, in order to determine the error in the calculated values.

DOI: 10.22227/1997-0935.2014.3.141-148

References
  1. Lykov A.V. Nekotorye problemnye voprosy teorii teplomassoperenosa [Some Problematic Issues of Heat and Mass Transfer Theory]. Problema teplo- i massoperenosa: Sbornik nauchnykh trudov [Problems of Heat and Mass Transfer: Collection of Scientific Articles]. Minsk, Nauka i tekhnika Publ., 1976, pp. 9—82.
  2. Fokin V.M., Boykov G.P., Vidin Yu.V. Osnovy energosberezheniya v voprosakh teploobmena [Basics of Energy Saving in Matters of Heat Transfer]. Moscow, Mashinostroenie Publ., 2005, 192 p.
  3. Yudanov V.A., Grechukhin A.A., Tokarev A.V. Nestatsionarnyy teplovoy nasos [Nonstationary Heat Pump]. Vestnik KRSU [Proceedings of Kyrgyz-Russian Slavic University]. 2010, vol. 10, no. 5, pp. 109—115.
  4. Mikheev M.A., Mikheeva I.M. Osnovy teploperedachi [Fundamentals of Heat Transfer]. Moscow, Energiya Publ., 1977, 343 p.
  5. Kalitaev A.N. Identifi katsiya koeffi tsientov teplootdachi nepreryvnolitogo slitka v zone vtorichnogo okhlazhdeniya mashiny nepreryvnogo lit'ya zagotovok metodami optimal'nogo upravleniya [Identifying Heat-transfer Coefficient of a Continuous Casting in a Secondary Cooling Zone of a Continuous Casting Machine Using Optimal-control Techniques]. Nauka. Tekhnologii. Innovatsii: tezisy dokladov Vserossiyskoy konferentsii: v 2 tovakh [Science. Technologies. Innovations: Theses of the All-Russian Conference: in 2 volumes]. Novosibirsk, NGTU Publ., 2004, vol. 1, pp. 91—92.
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  7. Il'inskiy I.V., Prokhach E.E., Pershin V.P. Nestatsionarnyy konvektivnyy teploobmen pri estestvennom ostyvanii vertikal'nykh plastin [Nonstationary Convective Heat Transfer]. Inzhenerno-fizicheskiy zhurnal [Engineering and Physical Journal]. 1974, vol. 27, no. 3, pp. 524.
  8. Rabinovich G.D. Nestatsionarnyy teploobmen v protivotochnom rekuperativnom apparate [Unsteady Heat Transfer in Counterfl ow Recuperative Unit]. Inzhenerno-fizicheskiy zhurnal [Engineering and Physical Journal]. 1961, vol. 4, no. 2, pp. 58—62.
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  13. Gukhman A.A. Primenenie teorii podobiya k issledovaniyu protsessov teplomassoobmena [Application of the Similarity Law in the Study of Heat-mass Exchange Processes]. Moscow, Vysshaya shkola Publ., 1974, 329 p.
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  15. Pereverzev D.A., Kostrykin V.A., Paley V.A. Modelirovanie i issledovanie protsessov ostyvaniya moshchnykh paroturbinnykh agregatov [Modeling and Study of the Cooling Processes of Powerful Steam-turbine Units]. Teploenergetika [Thermal Engineering]. 1980, no. 9, pp. 34—38.

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