Results 91 to 100 of about 3,729,257 (199)

Axial and Biaxial Fatigue Behavior of 6061‐T651 Cold Metal Transfer Welded Joints

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Lightweight aluminum structures in transportation systems are increasingly exposed to complex service loading, yet the fatigue performance of welded joints is still predominantly assessed using uniaxial data. In this work, the axial and biaxial fatigue behavior of 6061‐T651 aluminum alloy joints produced by cold metal transfer (CMT) welding is
R. Serrano, R. R. Ambriz, G. Ayoub
wiley   +1 more source

Crack Process Investigation in Gears Under Single Tooth Bending Fatigue Condition Using Infrared Thermography and 3D XFEM Numerical Models

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The present study proposes a combined approach of infrared thermography and 3D XFEM numerical models for crack process investigation in mechanical components such as gears. Over the years, fatigue crack analysis based on energy dissipations in the form of heat generated during fatigue tests has been widely reported, although mainly limited to ...
Luca Corsaro, Lorenzo Fraccaroli, Francesca Maria Curà, Franco Concli   +3 more
wiley   +1 more source

“Now we don't have that freedom to not work”: Childhood and parenting in insecurity culture

The British Journal of Sociology, EarlyView.
Allison J. Pugh
wiley   +1 more source

Experimental Study on the Fatigue Behavior of Ti‐6Al‐4 V Bolted Joints Containing Burrs

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT One‐way assembly accelerates aerospace manufacturing operations but risks leaving drilling burrs within mechanical joints. The detrimental impact of burrs on fatigue strength is widely recognized in the literature, but the mechanisms driving this “knock‐down” remain unclear. This investigation focused on mechanically fastened Ti‐6Al‐4 V single‐
Santiago Frutos Taravillo, Eric Paroissien, Yann Landon, Sébastien Schwartz, Baptiste Josuan, Mathieu Fressinet, Clément Chirol   +6 more
wiley   +1 more source

Feedback and Contagion through Distressed Competition

The Journal of Finance, EarlyView.
ABSTRACT Firms tend to compete more aggressively when facing financial distress. This intensified competition reduces profit margins, pushing them further into distress and adversely affecting their industry peers. To study such feedback and contagion effects, we incorporate strategic competition in a dynamic model with long‐term defaultable debt ...
HUI CHEN, WINSTON WEI DOU, HONGYE GUO, YAN JI   +3 more
wiley   +1 more source

Marginal gap of printed, milled, and heat‐pressed two‐piece polyetheretherketone abutments before and after thermal cycling, and their pull‐off bond strength after thermal cycling

Journal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the marginal gap of two‐piece polyetheretherketone (PEEK) abutments fabricated with different methods, before and after thermal cycling, while also focusing on their pull‐off bond strength. Materials and Methods A two‐piece abutment was virtually designed after digitizing a titanium‐base (Ti‐base) abutment.
Almira Ada Diken Türksayar, Burcu Kanpalta, Naime Bilinç Bulucu, Sandra Schulnig, Sebastian Spintzyk, Münir Demirel, Mustafa Borga Donmez   +6 more
wiley   +1 more source

From Friction Control to Dynamic Ratcheting and Actuation by Combined Normal and Tangential Oscillations

Lubricants
The superposition of normal and tangential oscillations in frictional contacts can fundamentally alter the macroscopic friction law and generate directed motion and force.
Ibrohim Madatov, Qiang Li, Valentin L. Popov   +2 more
doaj   +1 more source

Effects of scanner type and prosthesis design–luting protocol combinations on the passive fit of interim implant‐supported complete‐arch fixed dental prostheses

Journal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the effects of scanner type and prosthesis design–luting protocol combinations on the passive fit of interim implant‐supported complete‐arch fixed dental prostheses (ISCFDPs) fabricated using a non‐calibrated splinting grammetry system (OptiSplint).
Daizo Ishiguro, Mohamed Sherif Omar, Wei‐Shao Lin, Toshiki Nagai   +3 more
wiley   +1 more source

DIRECT ELASTIC-PLASTIC LIMIT LOAD AND SHAKEDOWN ANALYSIS OF STEEL SPACE TRUSSES WITH LARGE DISPLACEMENTS

Structural Mechanics of Engineering Constructions and Buildings, 2014
A direct method for elastic-plastic limit load and shakedown analysis of steel space trusses with large displacements is treated in this paper. The incremental method for the geometrically nonlinear analysis of space trusses, developed by one of the ...
A Heidari, V V Galishnikova
doaj  

Crawling under the radar: Two novel Paulinella species expand knowledge about the ecology and evolution of a primary plastid‐containing amoeba lineage

Journal of Phycology, EarlyView.
Abstract The genus Paulinella represents a rare, independent case of primary endosymbiosis, providing a unique system to study the early stages of organelle evolution. Here, we expand current understanding of primary plastid endosymbiosis through the discovery and characterization of two novel photosynthetic amoebae, Paulinella marae sp. nov.
Julia Van Etten, Sungpil Han, John A. Burns, Duckhyun Lhee, Andrew C. Willoughby, Timothy G. Stephens, Erin Chille, Robin S. Sleith, Debashish Bhattacharya, Hwan Su Yoon   +9 more
wiley   +1 more source