Academic literature on the topic 'Tee joints'

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Journal articles on the topic "Tee joints"

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Gaines, Edward T. "Designing Partial-Penetration Tee Joints for Naval Ships." Journal of Ship Production 6, no. 01 (February 1, 1990): 27–34. http://dx.doi.org/10.5957/jsp.1990.6.1.27.

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This paper reviews development of weld design equations which can be used to analyze bevel partial-penetration tee joints. The method developed herein follows closely the development of equations for the design of square-edge partial-penetration tee joints which was presented at the 1986 Ship Production Symposium. For U.S. Navy ship design, technical authority is vested in the Naval Sea Systems Command (NAVSEA). The published NAVSEA design criteria for partial-penetration tee joints are so conservative that it is mathematically impossible to design a conventional, 100 percent efficient partial-penetration bevel tee joint. With a more rigorous engineering analysis, the alternative method for bevel joints outlined in this paper might be an acceptable replacement for the simple, though unduly conservative existing design criteria.
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Dulieu-Barton, J. M., J. S. Earl, and R. A. Shenoi. "Determination of the stress distribution in foam-cored sandwich construction composite tee joints." Journal of Strain Analysis for Engineering Design 36, no. 6 (August 1, 2001): 545–60. http://dx.doi.org/10.1243/0309324011514700.

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The stresses in sandwich construction tee joints are determined using both experimental and numerical techniques. The features of interest in the tee joint are the use of a boundary angle laminate which reinforces the connection between the two component parts of the tee joint, the use of a fillet at the connection and the effect of any gap at the join. The experimental approach is thermoelastic stress analysis (TSA) based on the use of the SPATE (stress pattern analysis by thermal emissions) equipment. Techniques for calibrating the constituent parts of the joint are described so that quantitative stress values can be obtained from the TSA. A detailed finite element study of the tee joints is also carried out, the results of which are compared with the experimental data.
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Watanabe, Eiichi, Takashi Yamaguchi, Kunitomo Sugiura, and Shun-ichiro Kasai. "Fatigue Behavior on Split tee Flange Joints." Doboku Gakkai Ronbunshu, no. 537 (1996): 133–44. http://dx.doi.org/10.2208/jscej.1996.537_133.

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Li, W., L. Blunt, and K. J. Stout. "Stiffness analysis of adhesive bonded Tee joints." International Journal of Adhesion and Adhesives 19, no. 4 (August 1999): 315–20. http://dx.doi.org/10.1016/s0143-7496(99)00007-x.

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Zhu, Li Hong, Rui He Wang, Yong Huang, and Jing Yin Wang. "Based on Particle Size of Cuttings to Study the Erosion of the Plugged Tee in Air Drilling." Applied Mechanics and Materials 607 (July 2014): 193–96. http://dx.doi.org/10.4028/www.scientific.net/amm.607.193.

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Plugged tee is the easilyworn part of an exhaust pipe during air drilling because of the flow of the compressed air with the entrained cutting particles. The effects of the particle size on the erosion of the plugged tee are studied by computational fluid dynamics (CFD). Mathematical models of the flow of the compressed air with the entrained cutting particles through the plugged tee are built and imported into the CFD through embedding procedures. After boundary conditions and the parameter of the particle size are given, the motion paths of cuttings in the different particle size in the plugged tee and its effects on erosion of the plugged tee are obtained. Erosions in the plugged tee are mainly distributed in the wall of the buffer segment and the joints and mainly caused by the scope of the particle size of cuttings. The motion paths and the residence time of cuttings with different particle size are different, so the erosions of the joints and the buffer segment are different.
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Ren, Jun Jie, Wei Feng Ma, Xue Liang He, An Qi Chen, Jin Heng Luo, Ke Wang, Qiu Rong Ma, and Chun Yong Huo. "Mechanical Properties of Girth Weld with Different Butt Materials Severed for Natural Gas Station." Materials Science Forum 944 (January 2019): 821–27. http://dx.doi.org/10.4028/www.scientific.net/msf.944.821.

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Weld samples imitating the inservice girth welds in station (L245 straight pipe jointed to WPHY-70 tee joint and L415MB straight pipe jointed to WPHY-80 tee joint) were prepared. Tensile, bending, impact toughness and hardness of the joints were investigated. Results show that under tensile or bending load, failure occurred from the side with lower grade and smaller wall thickness. Relatived to the lower grade side, the weld seam is strong match. Significant change of impact toughness can be found in weld seam center and the heat affected zones (HAZ). The impact energy of seam center is the lowest in the weld joint. The impact energy show a trend of increase from seam center to base metal. In HAZ zone, impact toughness of the fusion line is the lowest. Impact toughness of higher grade side is higher than that of the lower grade side. Hardness of positions in HAZ zones are different distinctly. From coarse grained region to fine grained region, the hardness decrease. For the in-station girth welds jointed with different materials, lower grade and samller wall thickness side should be intensive monitored.
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Dawe, J. L., B. S. Pond, and G. Y. Grondin. "Interaction of shear and tension in welded truss connections." Canadian Journal of Civil Engineering 12, no. 1 (March 1, 1985): 94–103. http://dx.doi.org/10.1139/l85-010.

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In many truss joints consisting of double-angle web members welded to stems of inverted lower chord tee sections, adequate fillet weld lengths may be provided without the need for gusset plates. In such cases where a joint may also be subjected to high combinations of shear and tension, the possibility of overstressing of a tee stem exists. In the investigation of this problem, four analytical techniques, including two proposed herein, and experimental results of 30 full-scale specimen tests, 22 of which were conducted during the investigation presented herein, are presented and evaluated. Analytical and experimental results indicate that the interaction of shear and normal stresses is an important consideration in the design of such joints and that an interaction check is required.Of the many parameters investigated as part of the experimental investigation, the two that most significantly influence the magnitude of tension force that a lower chord can simultaneously carry are the magnitude of applied shear force averaged over the available web shear area and the joint configuration itself. The inclination of a diagonal web member as well as intentional joint eccentricities have little effect on the strength of these joints, although joint ductility appears to be affected by eccentricities.Although all four analytical techniques have similar overall accuracies of prediction, a method based on applying a von Mises criterion at ultimate to determine an equivalent shear area in a tee chord is recommended as being the most suitable. Based on this method, as verified and validated by comparison with extensive experimental results of tests on full-scale specimens, a simplified design curve and associated equations are developed and proposed for design office use. Key words: connection, interaction, shear, tension, welded, truss.
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Li, W., L. Blunt, and K. J. Stout. "Analysis and design of adhesive-bonded tee joints." International Journal of Adhesion and Adhesives 17, no. 4 (November 1997): 303–11. http://dx.doi.org/10.1016/s0143-7496(97)00012-2.

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Read, P. "Fatigue behaviour of single skin FRP tee joints." International Journal of Fatigue 21, no. 3 (March 1999): 281–96. http://dx.doi.org/10.1016/s0142-1123(98)00075-9.

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Skopinskii, V. N., and A. V. Kazachkin. "Theoretical and experimental analysis of crimped tee joints." Strength of Materials 26, no. 11 (November 1994): 841–45. http://dx.doi.org/10.1007/bf02216116.

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Dissertations / Theses on the topic "Tee joints"

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Read, Paul John Charles Lewis. "Fatigue characterisation of FRP structural tee joints." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242730.

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Earl, Jacqueline Sonia. "The influence of hygrothermal ageing on polymeric composite sandwich materials and structures." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342836.

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Kang, Chew Ting. "Ultimate strength of Double-Tee tubular joints under combined brace and chord loading." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364210.

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Brooke, Stephen John. "The application of high power lasers to the welding of tee section joints in ship production." Thesis, University of Newcastle Upon Tyne, 1987. http://hdl.handle.net/10443/830.

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The use of computers by naval architects has revolutionised ship design and -construction management. The use of high power laser technology could similarly revolutionise production processes to produce a quantum leap in productivity. Facilitating low heat input materials processing, the laser is suited to various cutting, welding and heat treatment applications in shipbuilding to increase productivity through improved product accuracy. From these processes, the Author has concentrated on the application of high power lasers to the welding of tee section joints - the most common joint configuration in ship structures - by a single sided method (skid welding) to give both the lowest possible heat input and greatest flexibility. -Using a lOkW laser, single pass fully penetrating skid welds may be produced for joints in plate of up to 15mm thick, but using this size of laser, production parameter envelopes to produce visually and structurally sound joints reduce in size as plate thickness increases to greater than 10mm. It is shown that fully penetrating laser skid welds produced in steel conventionally used for surface vessel construction are of superior structural quality to fillet welds as required by classification society rules. The work has shown that achieving process consistency in an automated production based skid welding workstation operating with existing levels of joint tolerance will be dependent not only on well designed laser and beam delivery harware but also on suitable on-line adaptive control systems. It has been demonstrated that by employing laser skid welding for steelwork fabrication, an increase in productivity can be gained, principally through increased processing speed and improved product accuracy.
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Chlosta, Alexander. "Analysis of Prestressed Concrete Deck Bulb Tee Girder Bridges with Ultra-High Performance Concrete Longitudinal Joints." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1574349161211748.

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Waymark, Claire Marie. "Joint validation of HIRDLS and TES." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531808.

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Bary, Abdouraman. "Etude par TEM et EBIC des joints, sous-joints et précipités dans le silicium polycristallin POLIX." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37611619w.

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Bary, Abdouraman. "Etude par tem et ebic des joints, sous-joints et precipites dans le silicium polycristallin polix." Caen, 1989. http://www.theses.fr/1989CAEN2031.

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La structure cristallographique des principaux defauts presents dans les lingots bruts de silicium polycristallin de type polix a ete etudiee par microscopie electronique en transmission (met). Une methode analytique a permis de determiner de facon tres precise des parametres qui caracterisent les joints de grains et les sous-joints. Les precipites presents dans ce materiau ont ete egalement caracterises. Parallelement a cette description structurale, l'activite electrique de ces defauts a ete etudiee au moyen de la microscopie electronique a balayage (meb) par la technique du courant induit par faisceau d'electrons (ebic). Des mesures quantitatives de vitesses de recombinaison des porteurs de charge electrique minoritaires sur les defauts ont ete realisees. Il a ete mis en evidence le role determinant des facteurs chimiques, la segregation d'impuretes et surtout la precipitation sur l'activite ebic des defauts. Ces phenomenes sont cependant modules par les facteurs structuraux
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Dong, Fangxiao. "KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE." UKnowledge, 2013. http://uknowledge.uky.edu/me_etds/23.

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This work involves investigation of the kinetics data of a joint formation during aluminum alloy brazing. Data was generated by several groups of experiments conducted under conditions of a controlled oxygen level of the background brazing atmosphere. Generated data are examined to identify the phases of the joint formation and the time frame of its evolution. Specifically, the triple line kinetics data are analyzed to verify whether a power law between (1) the triple line of the molten metal preceding joint formation and (2) the formation time can be established for each formation phase. In addition, both initial and residual clad thicknesses on brazing sheets are studied to check phenomenologically an impact of silicon diffusion on joint formation. Formation shapes are also inspected in order to study if a 2-D configuration of joint formation is present. The kinetics data from different sets of experiments under adverse atmosphere conditions are compared to understand the impact of oxygen level on joint formation. This study is not necessarily aimed at building a mathematical model for T-Joint formation during brazing process, but intends to understand possible influential parameters on the development of the formation. KEYWORDS: Aluminum Brazing, Kinetics, T-Joint, Background Atmosphere, Capillary Flow.
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Runte, David E. "Fundamental frequencies of I-joist, solid-sawn wood joist, and truss floors based of tee-beam modeling /." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09192009-040550/.

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Books on the topic "Tee joints"

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Li, Wei. Analysis of adhesive bonded tee joint by finite element method. Birmingham: University of Birmingham, 1998.

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Stockton-on-Tees (England). Social Services Department. Joint review of Stockton-on-Tees social services: Position statement. Stockton-on-Tees: Stockton-on-Tees Borough Council, 1999.

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Mun, Chun-jo. Hanʼguk kiŏp ŭi tae Chungguk habyŏng, hapchak tʻuja kyeyak e kwanhan silchŭngjŏk yŏnʼgu. Sŏul Tʻŭkpyŏlsi: Hanʼguk Pŏpche Yŏnʼguwŏn, 1993.

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Ramberger, Günter. Structural bearings and expansion joints for bridges. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2002. http://dx.doi.org/10.2749/sed006.

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<p>Bridge superstructures have to be designed to permit thermal and live load strains to occur without unintended restraints. Bridge bearings have to transfer forces from the superstructure to the substructure, allowing all movements in directions defined by the designer. The two functions -transfer the loads and allow movements only in the required directions for a long service time with little maintenance - are not so easy to fulfil. Differ­ent bearings for different purposes and requirements have been developed so, that the bridge designer can choose the most suitable bearing.</p> <p>By the movement of a bridge, gaps are necessary between superstructure and substructure. Expansion joints fill the gaps, allowing traffic loads tobe carried and allowing all expected displacements with low resistance. Ex­pansion joints should provide a smooth transition, avoid noise emission as far as possible and withstand all mechanical actions and chemical attacks (de-icing) for a long time. A simple exchange of all wearing parts and of the entire expansion joint should be possible.</p> <p>The present volume provides a comprehensive survey of arrangement, construction and installation of bearings and expansion joints for bridges including calculation of bearing reactions and movements, analysis and design, inspection and maintenance. A long list of references deals with the subjects but also with aspects in the vicinity of bearings and expansion joints.</p> <p>This book is aimed at both students and practising engineers, working in the field of bridge design, construction, analysis, inspection, maintenance and repair.</p>
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Novak, Skip. Fazisi: The joint venture. London: Sidgwick & Jackson, 1990.

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Poxton, Richard. Joint approaches for a better old age: Developing services through joint commissioning. London: King's Fund, 1996.

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Landau, Elaine. The Boston Tea Party: Would you join the Revolution? Berkeley Heights, NJ: Enslow Elementary, an imprint of Enslow Publishers, Inc., 2014.

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1943-, Hura Myron, Young Thomas-Durell, and Arroyo Center. Strategy, Doctrine, and Resources Program, eds. Enhancing Army Joint Force headquarters capabilities. Santa Monica, CA: RAND Arroyo Center, 2010.

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Lee, Spike. Do the right thing: A Spike Lee joint. New York, N.Y: Fireside, 1989.

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Merete, Brattström, ed. Joint protection and rehabilitation in chronic rheumatic disorders. (London): Wolfe Medical, 1987.

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Book chapters on the topic "Tee joints"

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Makhtar, Muhammad Fadhli, Azman Ismail, Iliani Mohd Ikram, Fauziah Ab Rahman, Bakhtiar Ariff Baharuddin, Megat Khalid Puteri Zarina, Darulihsan Abdul Hamid, and Achilles Enchangan Ulak Anak Mancha. "An Experimental Study on Friction Stir Welding of AA5083 Tee Lap Joints." In Advanced Engineering for Processes and Technologies II, 279–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67307-9_25.

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Lharchi, Ayoub, Mette Ramsgaard Thomsen, and Martin Tamke. "Joint Descriptive Modeling (JDM) for Assembly-Aware Timber Structure Design." In Proceedings of the 2021 DigitalFUTURES, 359–67. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5983-6_33.

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AbstractJoints design is an essential step in the process of designing timber structures. Complex architectural topologies require thorough planning and scheduling, as it is necessary to consider numerous factors such as structural stability, fabrication capabilities, and ease of assembly. This paper introduces a novel approach to timber joints design that embed both fabrication and assembly considerations within the same model to avoid mistakes that might cause delays and further expenses. We developed a workflow that allows us to identify the fundamental data to describe a given joint geometry, machine-independent fabrication procedures, and the assembly sequence. Based on this, we introduce a comprehensive descriptive language called Joint Descriptive Model (JDM) that leverages industry standards to convert a joint into a usable output for both fabrication and assembly simulations. Finally, we suggest a seed of a joint’s library with some common joints.
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Grainger, Andrew J., and Charles S. Resnik. "Arthritis." In IDKD Springer Series, 149–68. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71281-5_11.

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AbstractImaging plays an important role in the diagnosis and management of joint disease. However, to accurately diagnose the underlying cause of a patient’s arthritis, consideration must be given to the clinical information available as well as to the imaging features of the disease. The pattern of joint involvement in each case is particularly important, with consideration of the number of joints involved, whether or not the joints are affected symmetrically on both sides of the body, and which specific joints are affected. In cases of peripheral arthritis involving the small joints of the hands and feet, the distribution of joint disease detected on the radiograph is often as important in making the correct diagnosis as the radiographic features of the disease.While cross-sectional imaging modalities have an important role to play, the conventional radiograph remains fundamental to the diagnosis of joint disease and is commonly the first imaging investigation undertaken.
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Gires, F., A. Chevrot, A. Leroy-Willig, M. Wybier, C. Vallée, J. C. Roucayrol, and G. Pallardy. "Joints." In MRI of the Body, 263–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-87556-4_20.

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Bab, Itai, Carmit Hajbi-Yonissi, Yankel Gabet, and Ralph Müller. "Sternum, Sternal-Rib Joint, Ribs and Rib-Vertebral Joints." In Micro-Tomographic Atlas of the Mouse Skeleton, 93–108. Boston, MA: Springer US, 2007. http://dx.doi.org/10.1007/978-0-387-39258-5_8.

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Solarino, G., L. Scialpi, M. D’Anello, N. Tartaglia, O. De Carolis, and G. B. Solarino. "A Ten Years Experience with Alumina-Alumina Hip Replacement." In Bioceramics in Joint Arthroplasty, 13–16. Heidelberg: Steinkopff, 2004. http://dx.doi.org/10.1007/978-3-7985-1968-8_3.

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Ismail, A., M. Awang, M. S. M. Zuhir, F. A. Rahman, B. A. Baharudin, M. K. Puteri Zarina, D. A. Hamid, M. A. Rojan, and W. M. Dahalan. "Friction Stir Welding on AA5083 Tee Joint in 1F Position." In Lecture Notes in Mechanical Engineering, 351–60. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0002-2_36.

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Wright, W. B. "Bones and Joints." In The Elderly Patient, 166–78. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1421-5_11.

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Brake, Matthew R. W., David J. Ewins, and Clay B. Wynn. "Are Joints Necessary?" In The Mechanics of Jointed Structures, 25–36. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56818-8_3.

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Hughes, Graham, and Shirish Sangle. "Bones and Joints." In Hughes Syndrome: The Antiphospholipid Syndrome, 65–68. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-739-6_17.

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Conference papers on the topic "Tee joints"

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Sanders, D. H., and J. A. Yura. "Strength of Double-Tee Tubular Joints in Tension." In Offshore Technology Conference. Offshore Technology Conference, 1987. http://dx.doi.org/10.4043/5437-ms.

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Huang, Chengshuai, Yinglai Liu, Xunfeng Du, Peng Wang, Hongyuan Chen, Lihua Qi, Haitao Wang, and Yixin Li. "Hydro-Burst Investigations in Large Diameter Tee-Joints." In International Conference on Pipelines and Trenchless Technology 2014. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413821.054.

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Markose, Agesh, and C. Lakshmana Rao. "Failure Modeling of Steel Structural Tee Joints Under Blast Loading." In 5th International Congress on Computational Mechanics and Simulation. Singapore: Research Publishing Services, 2014. http://dx.doi.org/10.3850/978-981-09-1139-3_361.

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Pang, Su-Seng, Liangfeng Sun, Arthur M. Sterling, and Randy A. Jones. "Preliminary Development of a Composite Pipe Tee-Joint Using Heat Coupling Technology." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/ot-29147.

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Preliminary study of a composite pipe Tee-joint using heat coupling technology was conducted in this paper. The cutting process of the pipes for the Tee-joint was developed. Because the cutting edges of the pipes were coarse, it is necessary to smooth them. Both epoxy resin and prepreg were applied to the joined areas of the pipes. Shrink tape was also applied to the outside of the prepreg to add pressure and compression force. An optimized cure cycle for the epoxy prepreg used as the bonding materials was determined from the thermal cure analysis. The cure process of the joined pipes by epoxy prepreg was conducted in a specially designed oven. The total cure time was about 138 minutes. Several factors, including the thickness and length of the prepreg applied and the adhesive applied to the joints, have been considered in designing Teejoints. The hydrostatic pressure test results showed that the thickness of the wrapped epoxy prepreg had a very important effect on the quality of the joined pipes in terms of pressure.
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Bohn, Lucas, Mostafa Tazarv, and Nadim Wehbe. "Rehabilitation of Longitudinal Joints of Double-Tee Bridges through Full-Scale Testing." In Second International Interactive Symposium on UHPC. Iowa State University Digital Press, 2019. http://dx.doi.org/10.21838/uhpc.9637.

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Gotoh, Koji, and Shuichi Tsumura. "Fatigue Strength and Angular Distortion of the Full-Penetration Tee Type Joint Fabricated by One-Side Single-Pass Laser-Arc Hybrid Welding." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54173.

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Laser-arc hybrid welding is a high-quality welding technology and is expected to improve the productivity of manufacturing hull and offshore structures. Application of this technology allows the replacement of fillet-welded joints in structures with full-penetration welded joints. The fatigue performance and deformation caused by welding will be improved by this replacement. The present study experimentally investigates the fatigue performance and deformation due to welding. Two types of tee joints, which penetrate from one side and both sides, were applied. The investigations confirm the superiority of full-penetration tee joints fabricated by laser-arc hybrid welding over conventional fillet-welded joints.
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Nakamura, Izumi. "Numerical Investigation on Strength of Tee Pipes Under In-Plane/Out-of-Plane Cyclic Loading." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93559.

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Abstract It is known that the expected failure mode of piping systems under excessive seismic motion would be the fatigue failure at elbows or tees. Although there are a lot of experimental and analytical investigations on the strength and the failure behavior of elbows under seismic loading, there are a few studies on tee pipe joints particularly in the inelastic range. To clarify the characteristics of the strength of tee pipes under elastic-plastic region, investigations by FEM analysis were conducted. In this analytical investigation, steel butt-welding type tee pipe joints were considered. Two kinds of parameters were considered; 1) the loading direction (in-plane bending / out-of-plane bending), 2) the branch size (equal tee / unequal tee). From the analytical examination, the load-displacement relationship and the distribution of the accumulated plastic strain concentration position were obtained. The difference of the strength in the loading direction and the expected failure locations depending on the branch pipe size and the loading direction are discussed.
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Prakash, Ajay, Philip Diwakar, Dan Lin, Paul Deane, Yuqing Liu, and Matt Jaouhari. "Acoustic Vibration Induced Fatigue in Pipe Joints." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45799.

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High acoustic energy has the potential to cause severe acoustic induced vibration (AIV) that can lead to fatigue failure at high stress concentration locations (discontinuities) in a piping system. AIV at pipe junctions (Lateral, Tee, and Wye) and welded support attachments (trunnions and shoes) is evaluated using Finite Element Analysis. At different size pipe junctions, branch and header pipe shells may be subjected to different sound pressure. Also, inertia associated with different wall thickness(s) can lead to very different dynamic response of the two shell walls. The effect of these differences on AIV response is analyzed. Resulting response for different junction reinforcement designs is evaluated and compared to an unreinforced ‘stub-on’ configuration to assess the designs.
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Ferino, Jan, Antonio Lucci, and Giuseppe Demofonti. "Pressurized Flanged Joints Subjected to Bending Cyclic Loading: Tests and Finite Element Analyses." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97894.

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Temporary ground deformations produced by strong seismic activity can result in severe cyclic loading applied to piping, fittings and components such as flanges, elbows, tee joints etc. The integrity of the piping system in such condition is of critical importance for the safety of petro-chemical plants or refineries. Among various reasons of failures under earthquakes, the accumulation of plastic strains due to cyclic bending loading of pressurized piping sections containing bolted flanged joints, have to be carefully considered. This paper reports the results of the experimental full scale tests performed within the RFCS INDUSE Project [1] on PN40 and PN63 piping sections containing bolted flanged joints subjected to monotonic and cyclic bending load, in presence of internal pressure. On the basis of the experimental results, a FE model adopting Lemaitre-Chaboche nonlinear kinematic hardening rule for the pipe material has been developed, allowing to extend the results of the tests by performing a study on the main parameters affecting resistance of the joint.
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Beaugrand, Viviane C. M., Lee S. Smith, and Mike F. Gittos. "Hydrogen Embrittlement of 8630M/625 Subsea Dissimilar Joints: Factors That Influence the Performance." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-80030.

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Following the failure of a small number of subsea dissimilar joints, there is significant interest in understanding the fracture mechanism(s) and in qualifying future items for avoidance of further failures. Subsea dissimilar joints typically comprise a butter weld deposit onto the joint face of an alloy steel forged hub/tee/elbow, postweld heat treated, and completed with a closure weld to a pipeline steel. The case examined in this paper, consists of a build up of alloy 625 onto an 8630M forging. Hydrogen embrittlement test methods are described and the results from the tests interpreted with respect to their implications for fabrication and service. The microstructure and chemistry across the dissimilar interface is found to be of fundamental importance, and this is illustrated by the relative performance of gas-tungsten arc (GTA), hot-wire GTA and friction welds. Guidance for fabrication, installation and service is given for avoidance of further hydrogen embrittlement failures.
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Reports on the topic "Tee joints"

1

Doyle, Jesse D., Nolan R. Hoffman, and M. Kelvin Taylor. Aircraft Arrestor System Panel Joint Improvement. U.S. Army Engineer Research and Development Center, August 2021. http://dx.doi.org/10.21079/11681/41342.

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Aircraft Arresting Systems (AAS) for military applications utilize sacrificial panels made of Ultra-High Molecular Weight polyethylene (UHMWPE) that are embedded into the pavement beneath the AAS cable to protect the pavement from cable damage. Problems have been observed with the materials and practices used to seal the UHMWPE panel joints from water and debris. Data obtained from laboratory and field studies were used make improvements to current practice for sealing UHMWPE panel joints. The study evaluated four joint-sealant materials, eight alternative surface treatment and preparation techniques to promote adhesion to UHMWPE, and seven joint-edge geometries. Bond-strength testing of joint-sealant specimens was conducted in the laboratory, followed by field evaluation of construction techniques. Field performance of the joint systems was monitored for 24 months after installation. Additionally, a thermal response model was developed to refine the joint design dimensions. Results confirmed that the best material to use was self-leveling silicone joint sealant. It was recommended that a dovetail groove be cut into the edge of UHMW panels to provide positive mechanical interlock and to reduce adhesive failures of the sealant. It was also recommended that the panel-to-panel joint-sealant reservoir be widened to prevent sealant compression damage.
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2

Imaz, M., C. Gay, R. Friedmann, and B. Goldberg. Mexico joins the venture: Joint Implementation and Greenhouse Gas Emissions. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/6483.

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3

Roesler, Jeffery, Roberto Montemayor, John DeSantis, and Prakhar Gupta. Evaluation of Premature Cracking in Urban Concrete Pavement. Illinois Center for Transportation, January 2021. http://dx.doi.org/10.36501/0197-9191/21-001.

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This study investigated the causes for premature, transverse cracking on urban jointed plain concrete pavements in Illinois. A field survey of 67 sections throughout Illinois coupled with ultrasonic evaluation was completed to synthesize the extent of premature cracking on urban JPCP. The visual survey showed some transverse and longitudinal cracks were a result of improper slab geometry (excessive slab length and width). Ultrasonic tests over the contraction joints determined some notched joints had not activated and adjacent transverse cracks were likely formed as a result. Three-dimensional finite-element analyses confirmed that cracking would not develop as a result of normal environmental factors and slab-base frictional restraint. The concrete mixture also did not appear to be a contributing factor to the premature cracks. Finally, the lack of lubrication on dowel bars was determined to potentially be a primary mechanism that could restrain the transverse contraction joints, produce excessive tensile stresses in the slab, and cause premature transverse cracks to develop.
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4

Clavenna, James A. Where's the Joint in Joint Seabasing: Logistical Implications for the Joint Force Commander. Fort Belvoir, VA: Defense Technical Information Center, February 2006. http://dx.doi.org/10.21236/ada463422.

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5

Kinloch, A. J., M. Fernando, and P. Lam. The Cyclic Fatigue Behaviour of Adhesive Joints. Fort Belvoir, VA: Defense Technical Information Center, December 1993. http://dx.doi.org/10.21236/ada277080.

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6

Kinloch, A. J., and M. Fernando. The Cyclic Fatigue Behaviour of Adhesive Joints. Fort Belvoir, VA: Defense Technical Information Center, June 1994. http://dx.doi.org/10.21236/ada280453.

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7

Runge-Marchese, Jude M., Ralph C. Daehn, and /Fermilab. Fermilab Failure Analysis of TeV I (TIE) Array Soldier Joints. Office of Scientific and Technical Information (OSTI), September 1987. http://dx.doi.org/10.2172/984624.

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8

Zhang, Yongping, Wen Cheng, and Xudong Jia. Enhancement of Multimodal Traffic Safety in High-Quality Transit Areas. Mineta Transportation Institute, February 2021. http://dx.doi.org/10.31979/mti.2021.1920.

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Numerous extant studies are dedicated to enhancing the safety of active transportation modes, but very few studies are devoted to safety analysis surrounding transit stations, which serve as an important modal interface for pedestrians and bicyclists. This study bridges the gap by developing joint models based on the multivariate conditionally autoregressive (MCAR) priors with a distance-oriented neighboring weight matrix. For this purpose, transit-station-centered data in Los Angeles County were used for model development. Feature selection relying on both random forest and correlation analyses was employed, which leads to different covariate inputs to each of the two jointed models, resulting in increased model flexibility. Utilizing an Integrated Nested Laplace Approximation (INLA) algorithm and various evaluation criteria, the results demonstrate that models with a correlation effect between pedestrians and bicyclists perform much better than the models without such an effect. The joint models also aid in identifying significant covariates contributing to the safety of each of the two active transportation modes. The research results can furnish transportation professionals with additional insights to create safer access to transit and thus promote active transportation.
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Durkac, Louis M. Joint Mission Capability Packages: The Future of Joint Combat. Fort Belvoir, VA: Defense Technical Information Center, March 2005. http://dx.doi.org/10.21236/ada464295.

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10

Hogan, Melvin S. Contractors in the Joint Theater: The Need for a Joint Doctrine. Fort Belvoir, VA: Defense Technical Information Center, February 1999. http://dx.doi.org/10.21236/ada363125.

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