Results 231 to 240 of about 660,214 (294)

Breaking the Polarity–Coordination Coupling in Electrolyte Design for High‐Voltage Lithium Batteries

Advanced Energy Materials, EarlyView.
Steric and electronic co‐regulation of 2,2,2‐trifluoro‐N, N‐dimethylethylamide (DMTFA) decouples high polarity from strong Li+ coordination, creating an anion‐mediated pseudo‐weakly solvating electrolyte. This design lowers Li+ desolvation barriers, enhances Li+ mobility, and builds B‐, F‐, and N‐rich inorganic interphases, enabling stable 3.0–4.6 V ...
Xue Li, Shangquan Zhao, Yifan Wu, Naigen Zhou, Fei Luo, Runze Liu, Chengjin Peng, Junzhi Li, Stefano Passerini, Shan Fang   +9 more
wiley   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

Advanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi, Hiba Ali, Barbara Belza, Mattia F. Palermo, Claudio Gerbaldi, Giuseppe Antonio Elia, Nagore Ortiz‐Vitoriano   +6 more
wiley   +1 more source

Short Fatigue-Crack Growth from Crack-like Defects under Completely Reversed Loading Predicted Based on Cyclic R-Curve. [PDF]

Materials (Basel)
Tanaka K, Akiniwa Y.
europepmc   +1 more source

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Multiple-cracked fatigue crack growth by BEM

Computational Mechanics, 1995
The dual boundary element method is applied to the two-dimensional linear elastic analysis of fatigue problem of multiple-cracked body. For each crack, the traction integral equation is applied on one surface of the crack, while the usual displacement integral equation is used simultaneously on the other. General multiple crack growth problem is solved
Yan, A. M., Nguyen-Dang, H.
openaire   +2 more sources

THE FATIGUE BEHAVIOUR OF CRACKED CONCRETE

Fatigue & Fracture of Engineering Materials & Structures, 1997
Abstract— Cracks are among the most common flaws in civil engineering structures and, considering the cyclic nature of the variable loading patterns, it is evident that the evaluation of the structure safety factor should consider the stability of cracks when fatigue loading occurs.In the present paper, the behaviour of cracked concrete subjected to ...
PLIZZARI, Giovanni, CANGIANO S., ALLERUZZO S.   +2 more
openaire   +2 more sources

THE EFFECT OF ARTIFICIAL FATIGUE‐CRACK CLOSURE ON FATIGUE‐CRACK GROWTH

Fatigue & Fracture of Engineering Materials & Structures, 1993
AbstractAn investigation of the effects of artificial fatigue‐crack closure on the subsequent growth of fatigue cracks, at constant range of stress‐intensity factor, was carried out for the following closure materials: (i) electroplated nickel; (ii) electroless nickel; (iii) ethylcyanoacrylate (ECA) adhesive; (iv) low‐melting point (LMP) solder. It was
A. Ur‐Rehman, P. F. Thomason
openaire   +1 more source

Monitoring fatigue cracks in gears

NDT & E International, 1991
Abstract Vibration analysis is the most common means of gear monitoring and diagnostics. Gear vibration is affected by faults but the signal is usually picked up at the case, where it is also affected by the structural response. An appropriate filtering function is therefore proposed to recover the torsional gear vibration from the case vibration ...
DALPIAZ, Giorgio, MENEGHETTI U.
openaire   +1 more source

Fatigue Crack Propagation of Short Cracks

Journal of Engineering Materials and Technology, 1979
Previous studies have shown that both threshold stress intensity factors and fatigue crack growth rates are dependent on crack size. The average growth rates for very short cracks considerably exceed those given by conventional stress intensity-crack growth laws fitted to long crack data.
M. H. El Haddad, K. N. Smith, T. H. Topper   +2 more
openaire   +1 more source

The Propagation of Fatigue Cracks

Journal of Applied Mechanics, 1956
Abstract A theory of the rate of growth of fatigue cracks is extended to the case of large stresses. Recent measurements of McClintock and Ryan are discussed.
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A fatigue crack growth threshold

Engineering Fracture Mechanics, 1992
Abstract Fatigue crack growth (FCG) threshold has been determined on Ti6A14V, Al 7475-T7351, quenched and tempered steel 24CrMo4 as well as on the Ni-base alloys Inconel 617 and Nicrofer 5219 Nb. The main objective of the studies was to prove the transferability of the experimentally determined FCG threshold to service type fatigue loading.
openaire   +2 more sources