Results 51 to 60 of about 13,244 (210)
Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds
Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 4, Page 1529-1541, April 2025.ABSTRACT The very high cycle fatigue behavior of S275J2+N flux‐core arc welded joints was investigated using the ultrasonic fatigue testing method at a loading frequency of 20 kHz. A bespoke specimen design featuring the weld toe was employed to more suitably represent in‐service welded joints than typical ultrasonic fatigue testing specimens.
Andrew England +2 more
wiley +1 more source
EXPERIMENTAL STUDY OF WELDING RESIDUAL STRESS OF HIGH-STRENGTH SHIPBUILDING STEEL
Brodogradnja, 2019 Ships are large welded structures. Welding residual stress (WRS) significantly impacts the mechanical properties of the structure. The plate and cylinder models welded by electrode welding (EW) and submerged arc welding (SAW) were designed to measure the
Yongjin Guo +3 more
doaj +1 more source
The univalent Bloch-Landau constant, harmonic symmetry and conformal glueing [PDF]
Journal de Math\'ematiques Pures et Appliqu\'es Volume 92, Issue
4, October 2009, Pages 396-406, 2008 By modifying a domain first suggested by Ruth Goodman in 1935 and by exploiting the explicit solution by Fedorov of the Poly\'a-Chebotarev problem in the case of four symmetrically placed points, an improved upper bound for the univalent Bloch-Landau constant is obtained.
arxiv +1 more source
Biofuels, Bioproducts and Biorefining, Volume 19, Issue 2, Page 453-468, March/April 2025.Abstract Lignocellulosic biomass (LCB) is a promising feedstock for the sustainable production of biofuels and other biobased products, owing to its abundance, low cost, and minimal competition with food crops for resources. It is mainly composed of cellulose, hemicellulose, and lignin, forming a complex biomass matrix.
Rasaq S. Abolore +2 more
wiley +1 more source
Improvement of Energy and Materials Efficiencies by Introducing Multiple-Wire Welding [PDF]
Metalurgija, 2007 The paper deals with a study and comparison between welding with several wires in different shielding atmospheres and single-wire welding. The first part treats the equipment for multiple-wire electrode welding and a comparison between single-wire ...
Bajcer, B. +3 more
doaj
Role of tidal range and coastline morphology on the evolution of two macrotidal sand spits
The Depositional Record, Volume 11, Issue 1, Page 311-327, February 2025.Based on historical map and stratigraphic data, the construction dynamics of two sandspits, respectively, subject to macrotidal and hypertidal range (6.5 m vs. 14 m), and that both appeared at the end of the 17th century, are compared. The hypertidal spit developed fast, between 1650 and 1750 CE, with a dominant seaward direction while the macrotidal ...
Bernadette Tessier +6 more
wiley +1 more source
Study of verification and validation of standard welding procedure specifications guidelines for API 5L X-70 grade line pipe welding [PDF]
Журнал інженерних наук, 2017 Verification and validation of welding procedure specifications for X-70 grade line pipe welding was performed as per clause 8.2, Annexure B and D of API 5L, 45th Edition to check weld integrity in its future application conditions. Hot rolled coils were
Qazi H. A. A.
doaj +1 more source
Electrohydraulic effect of microsecond pulsed discharge in transformer oils
High Voltage, Volume 10, Issue 1, Page 137-145, February 2025.Abstract The physical process of microsecond pulsed discharge in transformer oil is the foundation for studying the initial mechanics of faults in ultra‐high voltage transformers. However, the microsecond‐scale electrohydraulic effect in transformer oil has not been investigated yet.
Hang Wang +5 more
wiley +1 more source
Piecewise geodesic Jordan curves I: weldings, explicit computations, and Schwarzian derivatives [PDF]
arXiv, 2022 We consider Jordan curves $\gamma=\cup_{j=1}^n \gamma_j$ in the Riemann sphere for which each $\gamma_j$ is a hyperbolic geodesic in the complement of the remaining arcs $\gamma\smallsetminus \gamma_j$. These curves are characterized by the property that their conformal welding is piecewise M\"obius.
arxiv
Engineering Reports, Volume 7, Issue 1, January 2025.The study reveals high‐pressure buckling in quick‐lock sleeves and proposes a reliable design model. These research findings offer valuable guidance for the structural design and construction of localized repairs in municipal water supply and drainage networks.
Zhicheng Luo, Xuefeng Yan
wiley +1 more source