Results 81 to 90 of about 89,082 (299)

Scalar, vectorial and tensorial damage parameters from the mesoscopic background

, 2007
In the mesoscopic theory a distribution of different crack sizes and crack orientations is introduced. A scalar damage parameter, a second order damage tensor and a vectorial damage parameter are defined in terms of this distribution function.
Papenfuss, C., Ván, P.
core   +2 more sources

Prognostic Implications of Sleep Architecture for Patients Admitted to the Intensive Care Unit With Status Epilepticus

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Status epilepticus (SE) is associated with significant mortality. Sleep architecture may reflect normal brain function. Impaired sleep architecture is associated with poorer outcomes in numerous conditions. Here we investigate the association of sleep architecture in continuous EEG (cEEG) with survival in SE.
Ran R. Liu, Marcus C. Ng, Gavin P. Winston, Sabrina Schaly, Garima Shukla, Lysa Boissé Lomax   +5 more
wiley   +1 more source

The Application of Continuum Damage Mechanics to Fatigue Failure Mechanisms

, 1990
Continuum Damage Mechanics is applied to the modeling of fatigue failure mechanisms. The resulting equations are solved by discretizing the time domain and the space domain. A tremendous reduction of computing times is achieved by uncoupling the constitutive equations and by employing an adaptive stepsize selection procedure.
Paas, M.H.J.W., Schreurs, P.J.G., Janssen, J.D.   +2 more
openaire   +2 more sources

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler, Vivian Maas, Arian Taheri Amin, Jennifer Faber, Tamara Schaprian, Katharina Hill, Matthis Synofzik, Lisa H. Graf, Heike Jacobi, Manuela Lima, Ana F. Ferreira, Bart P. van de Warrenburg, Ilse H. J. Willemse, Dagmar Timmann, Andreas Thieme, Paola Giunti, Hector Garcia‐Moreno, Magda M. Santana, Jeannette Hübener‐Schmid, Elin H. Davies, Thomas Klockgether   +20 more
wiley   +1 more source

A Non-Linear Model for Corrosion Fatigue Lifetime Based on Continuum Damage Mechanics

MATEC Web of Conferences, 2018
Many structures, such as oil platforms and wind turbines, are built in the marine environment. These structures do not merely suffer from variable cyclic loading due to wind, waves and current, but also from corrosion.
Zhang Jie, Hertelé Stijn, De Waele Wim
doaj   +1 more source

Strain-based theoretical fatigue damage model of woven glass-epoxy fabric composite material

Composites Part C: Open Access, 2020
Strain-based theoretical fatigue damage model is developed by utilizing internal variable theory of thermodynamics of continuum damage mechanics approach related to woven glass fabric composite material.
Indra Narayan Yadav, Dr. Kamal Bahadur Thapa   +1 more
doaj   +1 more source

Interaction of damage processes in continuum damage mechanics

Acta Mechanica
Abstract This work presents novel mathematical formulations for the interaction of damage processes within the framework of continuum damage mechanics, focusing on advanced numerical applications. The approach involves an innovative analogy between the decomposition of the damage variable/tensor and the rule of mixtures, leading to both ...
George Z. Voyiadjis, Peter I. Kattan
openaire   +2 more sources

Analysis of damage and fracture formulations in cold extrusion [PDF]

, 2017
In forming processes, components generally undergo large deformations. This induces the evolution of damage, which can influence material and product properties.
Clausmeyer, Till, Schowtjak, Alexander, Tekkaya, A. Erman   +2 more
core  

Fractional Calculus for Continuum Mechanics - anisotropic non-locality

, 2015
In this paper the generalisation of previous author's formulation of fractional continuum mechanics to the case of anisotropic non-locality is presented. The considerations include the review of competitive formulations available in literature.
Sumelka, Wojciech
core   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source