Results 41 to 50 of about 1,542,365 (380)
Strain gradient plasticity-based modeling of hydrogen environment assisted cracking [PDF]
Acta Materialia 117, pp. 321-332 (2016), 2017 Finite element analysis of stress about a blunt crack tip, emphasizing finite strain and phenomenological and mechanism-based strain gradient plasticity (SGP) formulations, is integrated with electrochemical assessment of occluded-crack tip hydrogen (H) solubility and two H-decohesion models to predict hydrogen environment assisted crack growth ...
arxiv +1 more source
Analysis of cell size effects in atomistic crack propagation [PDF]
, 2020 We consider crack propagation in a crystalline material in terms of bifurcation analysis. We provide evidence that the stress intensity factor is a natural bifurcation parameter, and that the resulting bifurcation diagram is a periodic "snaking curve ...
Buze, Maciej +2 more
core +2 more sources
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Stress intensity factor determination methods for aircraft structures
Авіаційно-космічна техніка та технологіяDuring calculations for the fatigue and residual strength of aircraft structural elements, it is necessary to establish a functional relationship between the structure’s loading data, crack configuration, and one of the parameters characterizing the ...
Iryna Dzhavadova, Sergey Ignatovich
doaj +1 more source
The Stress Intensity Factor of convex embedded polygonal cracks
Fracture and Structural Integrity, 2022 In the present work, a simple formula for the evaluation of the stress intensity factor (SIF) of convex embedded polygonal cracks has been proposed. This formula is structured as a correction factor of the Oore-Burns’ equation and is based on accurate ...
Paolo Livieri, Fausto Segala
doaj
The power of microRNA regulation—insights into immunity and metabolism
FEBS Letters, EarlyView.MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto +2 more
wiley +1 more source
Stress and Displacement Intensity Factors of Cracks in Anisotropic Media
International Journal of Applied Mechanics and Engineering, 2020 A relation connecting stress intensity factors (SIF) with displacement intensity factors (DIF) at the crack front is derived by solving a pseudodifferential equation connecting stress and displacement discontinuity fields for a plane crack in an elastic ...
S. Kuznetsov, A. Karakozova
doaj +1 more source
Energies, 2022 Based on the existing research results, a theoretical fracture model of strata under the compound impact of static and harmonic dynamic load is improved, and the fracture characteristic parameters (stress intensity factor, T-stress, and fracture ...
Haiping Zhang +5 more
doaj +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
STRESS INTENSITY FACTOR IN MATRIX-AGGREGATE CONTACT ZONE
Наука и техника, 2010 The presented approach and illustrative problems clearly demonstrate significant possibilities of destruction mechanics in development of the finished theory on frost concrete and reinforced concrete destruction which is based on peculiar features of ...
S. N. Leonovich
doaj