Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 281 for “"welded"”.
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Strength of welded shear studs
… tests were conducted to study the behavior of welded shear studs. Forty-eight solid slab push-out tests were conducted to study how stud tensile strength and concrete properties affect the strength of shear connections. It is shown that raising the tensile strength of a shear connector actually …
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Brittle fracture in welded plate specimens
Includes bibliographical references (pages 43-44).
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Nonproportional biaxial fatigue of welded joints
… fatigue behavior of mild-steel, tube-to-plate welded specimens was studied. In-phase bending and torsion, constant-amplitude fatigue tests were used to define the weldment baseline material properties and also to serve as a comparison with out-of-phase tests. In-phase, combined bending-torsion …
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Seismic Evaluation of Welded Moment-resisting Connections
Welded moment-resisting connections are used in the rigid frames of high-rise buildings. Most of the standards specify full penetration butt welds as a suitable type of weld for welding beam flanges to the column flange in seismic areas. New Zealand’s steel design standard is the only standard that …
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Phase transformations in welded supermartensitic stainless steels
… the service life of the supermartensitic welded joint in corrosive environments relies to a large extent on the behaviour of the heat-affected zone (HAZ). The microstructure of the HAZ in these new materials has, until now, received little attention. The work presented in this thesis is …
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Fracture of welded aluminum thin-walled structures
… developed in the thesis for damage prediction of welded aluminum thin-walled structures, which includes material modeling, calibration, numerical simulation and experimental verification. An extensive experimental program was conducted on large-scale welded panels used on Inter City Express (ICE) …
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Irregular Welded Rectangular Hollow Section Truss-type Connections
This thesis presents research on four welded rectangular hollow section truss-type connections. Each type of connection was mainly investigated using numerical methods, with finite element models validated against experimental tests that were performed by either the author or other researchers. …
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Welded repair and maintenance in the space environment
Thesis (Nav.E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003.
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Behavior and Strength of Welded Stud Shear Connectors
The behavior and strength of welded shear studs are subjects of ongoing study. In recent years, research has shown that the American Institute of Steel Construction (AISC) specification equations for shear stud strength are unconservative for studs placed in deck with ribs transverse to the steel …
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Localized Corrosion of Friction Stir Welded Magnesium AZ Alloys
… problem that is accentuated when the alloys are welded. The work in this dissertation elucidated the mechanisms governing the corrosion behaviour of friction stir welded magnesium AZ alloys. The investigation utilized an integrated approach consisting of several corrosion measurement techniques …
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Fatigue properties of dissimilar metal laser welded lap joints.
… properties of similar and dissimilar metal laser welded butt and lap joints, with the majority of the investigation concentrating on the fatigue properties of dissimilar metal laser welded lap joints. The problems encountered when laser welding zinc-coated steel are addressed and overcome with …
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Spiral Welded Pipe Piles For Structures In Southeastern Louisiana
… resources, and a condensed timeline, spiral welded pipe piles can be manufactured as an alternative to either the concrete piles or steel H-piles. This research will provide the necessary background for understanding pile foundations, will compare the behaviors of spiral welded pipe piles to …
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A brief study of welded joints of structural steel
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1931
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A knowledge based expert system for analyzing welded structures
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Fusion zone properties of arc-welded modified 4330 steel
Thesis: B.S., Massachusetts Institute of Technology, Department of Metallurgy, 1958
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System variation analysis of MIG welded aluminum structural frames
… assembly of aluminum extrusions and castings welded into a structural frame. By making use of modeling techniques such as Finite Element Analysis (FEA) and Design of Experiments (DOE), it can be shown how this method can also be applied to systems that include complex processes such as …
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Study on structural integrity of welded components using the LMM
… Hence identifying the structural response of welded components under cyclic loading conditions and developing methods to predict their safe life is of significant importance. The work within this thesis focuses on the investigation of cyclic plasticity and creep-cyclic plasticity interaction …
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Peridynamic analysis of fatigue crack growth in fillet welded joints
… reliability during operation. Especially, for welded structures, various welding effects, such as stress concentration, residual stresses, weld geometry and weld quality, make the structure more vulnerable to fatigue failures. This requires more effective approaches for estimating fatigue …
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