Results 101 to 110 of about 2,043 (215)

Arbitrary Lagrangian–Eulerian Formulation in a Rotating Frame to Model Friction Spinning

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Friction spinning is a metal forming process that can be used to manufacture various shapes by rotating a metallic workpiece relative to a blunt tool. When used as a hot metal forming process, the relative velocity between workpiece and tool is increased until substantial heat is generated due to friction.
Johannes Friedlein   +3 more
wiley   +1 more source

Repeatability and Parasitic Out‐of‐Plane Motion in Controlled Rocking Structures With Cylindrical Columns: Results From Triaxial Shake Table Tests

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2930-2947, September 2026.
ABSTRACT Self‐centering rocking structures outperform conventional ones since they show zero post‐earthquake damage and excellent recentering; however, their applications remain limited due to concerns that rocking is extremely sensitive and nonrepeatable. This paper investigates the repeatability and parasitic out‐of‐plane motion of controlled rocking
Antonios A. Katsamakas
wiley   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, Volume 43, Issue 6, Page 3868-3892, September 2026.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Investigation of residual stress characteristics and fatigue crack propagation behavior in GH4169 blisks fabricated by linear friction welding

open access: yesJournal of Materials Research and Technology
This study established a thermal-mechanical coupling numerical simulation model for linear friction welding of GH4169 superalloy blisks using ABAQUS/Explicit and FRANC3D.
Xiawei Yang   +9 more
doaj   +1 more source

The institutional paradox of a substantivist conception of the economy in public policy: Insights from public procurement for solidarity economy in Ecuador

open access: yesAnnals of Public and Cooperative Economics, Volume 97, Issue 3, Page 871-900, September 2026.
Abstract Ecuador's 2008 Constitution advanced an ambitious substantive economic vision through Buen Vivir (Good Living), recognizing a plural economy which encompasses private, public and solidarity economy (SE) sectors. This paper aims to analyze public procurement programs in Ecuador, one of the flagship Buen Vivir policies for SE promotion.
Maria‐José Ruiz‐Rivera   +1 more
wiley   +1 more source

A Critical Review on Friction Stir Spot Welding of Aluminium Alloys: Tool, Mechanical, and Micro-Structural Characteristics

open access: yesCrystals
Aluminum spot welding is extensively applied in automotive, aerospace, and rail sectors due to its favorable strength-to-weight ratio. While resistance spot welding (RSW) has been the traditional method, its high residual stresses, electrode wear, and ...
Manash J. Borah   +6 more
doaj   +1 more source

The Theory of Critical Distances for Predicting the Static Failure of Double‐Lap Bolted Joints With Conventional and Additively Manufactured 316L Stainless Steel Inner Plates

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 9, Page 3831-3853, September 2026.
ABSTRACT This study assesses the accuracy of the theory of critical distances applied in the form of the point method in predicting the static strength of 316L stainless steel double‐lap shear bolted connections under static tensile loading. Single‐ and double‐bolt configurations were tested using inner plates manufactured from conventional material ...
Hasan Almuhanna   +2 more
wiley   +1 more source

Antimony Tin Oxide as a Nano Reinforcement Component for Acrylonitrile Styrene Acrylate in Material Extrusion Additive Manufacturing: Rheology and Thermomechanical Scores

open access: yesPolymer Composites, Volume 47, Issue 16, Page 14966-14985, 20 August 2026.
ASA/ATO nanocomposites in MEX 3D for outdoor applications. ABSTRACT In this study, the influence of incorporating Antimony Tin Oxide (ATO) filler into the Acrylonitrile Styrene Acrylate (ASA) pure polymer matrix was investigated, focusing on the mechanical, thermomechanical/thermochemical, and overall quality of 3D printed ASA/ATO nanocomposites.
Nectarios Vidakis   +8 more
wiley   +1 more source

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