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Relevant bibliographies by topics / Welded butt joint / Dissertations / Theses

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Dissertations / Theses on the topic 'Welded butt joint'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Cadden, S. "Prediction of the in-plane contractions in thin butt welded joints." Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382262.

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2

Nguyen, N. T. "Advanced modelling of the fatigue of butt-welded structures : a thesis /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phn576.pdf.

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3

Akbarnejad, Shahin. "Investigation on static strength of welded joints." Thesis, KTH, Materialvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104058.

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Although high strength steels represent yield strength up to 1300 MPa, welded structures reveal lowerstrength values. The strongest commercially available electrode provides the yield strength of about900 MPa. Therefore, in welded steels with strength above this type of filler metal, achieving anacceptable global strength is a crucial issue. In this master thesis, affects of different welding procedures on static strength of welded jointsof Weldox 960 and Weldox 1100 steels, were studied. These steels are produced by SSAB inOxelösund. Meanwhile, finite element method analyses were applied in o

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4

Zhang, Cheng. "Robotic 3D friction stir welding : T-butt joint." Thesis, Högskolan Väst, Avd för automationssystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-8250.

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This Master Thesis was performed in terms of robotic three dimensional friction stir welding with T-butt joint. Friction stir welding (FSW) is a solid state welding method that achieves the weld temperature by friction of a rotating non-consumable tool with the workpiece. Science and technology fast developing requires for higher seam quality and more complex welding joint geometry like 3D welds. In order to acquire high productivity, capacity and flexibility with acceptable cost, robotic FSW solution have been proposed. Instead of the standard FSW machine, using a robot to perform complicated

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5

TRONCI, AURELIO. "Statistical approach on the mechanical characterization of AA 2XXX Friction Stir Welded butt joints." Doctoral thesis, Università degli Studi di Cagliari, 2011. http://hdl.handle.net/11584/266325.

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6

Басара, Микола Андрійович. "Пошкодження і руйнування К-подібних вузлів плоских зварних ферм". Diss., Тернопільський національний технічний університет ім. Івана Пулюя, 2021. http://elartu.tntu.edu.ua/handle/lib/35809.

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Дана робота стосується актуальної науково-технічної проблеми пошкодження і руйнування К-подібних вузлів плоских зварних ферм. Саме К-подібні вузли є найпоширенішими для усіх фермових конструкцій. Зварні металеві ферми впродовж експлуатації зазнають комплексного впливу робочих навантажень, вітру, снігу, зміни температури, сейсміки, аварійних ситуацій тощо. Внаслідок цього в елементах конструкцій та в місцях їх з’єднань відбувається формування пошкоджень, які призводять до втрати тримальної здатності й руйнування ферм. Особливо актуальним є попередження руйнування ферм за умов циклічних навантаж

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7

Fu, Bin. "Advanced fracture mechanics analysis of shallow surface cracks in fillet welded T-butt plate joints." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363860.

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8

Eriksson, Berth. "Residual stress in a T-butt joint weld : cylinder versus plane plate geometry." Licentiate thesis, Luleå tekniska universitet, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25665.

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The welding process introduces residual stress originating from the heating, melting and cooling of the material. From the point of view of fatigue and stress corrosion cracking, the weld residual stress perpendicular to the weld axis is of particular interest. When qualifying weld parameters for welds in large cylinders having a ratio of radius to plate thickness larger than say approximately 100; reference to plane plates are often made for the sake of simplicity. However, the weld residual stress perpendicular to the weld axis is severely underestimated in the plane plate compared with the

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9

Sun, Tianzhu. "Residual stress development in AA7050 stationary shoulder friction stir welds." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/residual-stress-development-in-aa7050-stationary-shoulder-friction-stir-welds(9c4066c2-f3cf-4a3d-bfd0-3f6842de1251).html.

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Stationary shoulder friction stir welding (SSFSW) is a recently developed variant of conventional friction stir welding (FSW). Recent studies have shown that SSFSW can join high strength aluminum alloys with improved mechanical strength and reduced distortion as a result of a narrower and more uniform thermal profile. However, a lack of understanding on the residual stress development in the SSFSW process makes it difficult to assess the structural integrity and delays a widespread application of this technique to industry. This dissertation reports the first systematic investigation into the

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10

Parmar, Ravindra. "The long-term behaviour of butt fusion welds in polyethylene pipeline systems." Thesis, Brunel University, 1986. http://bura.brunel.ac.uk/handle/2438/6631.

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The objective of the study was to examine factors that influence the strength of butt welds and gain an understanding of the process of failure. The study was divided into several sectors. The first and primary part of the programme was to determine the extent to which the pipe system's long-term strength under both internal fluctuating and constant pressure is reduced by the presence of axially misaligned butt welds. The second objective was to examine fracture initiation sites and crack propagation paths of the failed aligned and misaligned butt welded samples in relation to the melt flow zo

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11

Zia, Tabari M. "Design, development and assessment of an automated ultrasonic inspection system in production and experimental analysis if tubular butt welds for identification and characterisation of weld defect." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376231.

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12

Wu, Tsun-Yen. "Prediction and experimental validation of weld dimensions in thin plates using superimposed laser sources technique." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41106.

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The objective of this research is to develop a method to evaluate important weld dimensions in thin plates by using laser generated ultrasounds and EMAT receiver. The superimposed laser sources (SLS) technique is developed to generate narrowband Lamb waves with fixed wavelengths in thin plates. The method permits the flexibility of selecting desired wavelength. The signal processing procedure that combines wavenumber-frequency (k-w) domain filtering and synthetic phase tuning (SPT) is used to further reduce the complexity of Lamb waves. The k-w domain filtering technique helps to filter out th

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13

Maczugowski, Maciej. "Numerical simulation of residual stresses in a weld seam : An application of the Finite Element Method." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65867.

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Articulated haulers are fundamental equipment to transport material. The load carrying structure on a hauler consists mainly of welded frames. During welding of the frames high residual stress will be introduced. These stresses may have a significant impact on the fatigue life of the frames. This is the reason for having good knowledge of the weld residual stresses. The finite element method was used to calculate the residual stress distributions in a butt weld and a T-join weld. Simulation of the welding process with thermal and mechanical analysis was prepared by means of welding GUI impleme

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14

Nguyen, Ninh T. "Advanced modelling of the fatigue of butt-welded structures : a thesis / by Ninh T. Nguyen." Thesis, 1996. http://hdl.handle.net/2440/18650.

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Copies of author's previously published articles inserted.<br>Bibliography: leaves 254-264.<br>xx, 297, [26] leaves : ill. ; 30 cm.<br>Studies the effects of various weld geometry parameters, residual stresses and the combined axial and bending loadings on the fatigue behaviour of butt-welded steel joints. Presents ways of improving the fatigue strength. Simulates the effect of the induced surface compressive residual stresses on the welded joints (for the improvement of the fatigue life). Explains the phenomenon of large scatter band associated with fatigue tests results. Suggests a new proce

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15

Chih-Hung, Chang, and 張志鴻. "Study on Fatigue Strength of Bulk Carrier with Defect in butt Welded Joints." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/32605551305008824016.

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碩士<br>國立臺灣大學<br>造船及海洋工程學研究所<br>89<br>Recently, the damage of bulk carriers happen frequently. It is found in the investigation that structure members of ships can not undertake the changeable wave load after long-term use , which cause the fatigue damage of ship structures . Weld is a common process now . However , due to the complex of weld joints , the existence of weld undercut is inevitable . In this paper , we investigate on a more than 100,000 DWT bulk carrier. There was a fatigue crack appeared in a butt welded outer plate during a sail. According to the spirit o

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16

Lin, Kuen-jen, and 林坤震. "The SIF Analysis for Butt-Welded Joints of Two Unequal Width or Thickness Plates." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/68327786388243224546.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>96<br>This study successfully verifies the feasibility of using the least-squares technique to evaluate the mixed-mode notch stress intensity factors (N-SIFs) for butt-welded joints of two unequal width or thickness plates numerically and experimentally. In numerical analysis, the least-squares technique integrated with finite element analysis is employed to compute the mode-I and mode-II N-SIFs for butt-welded joint specimens of various geometric shapes. The followed parameter study is performed to understand the variation of N-SIFs against the discussed geomet

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