Results 191 to 200 of about 1,062 (237)
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen +7 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu +10 more
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Determining a probabilistic forming limit curve
AIP Conference Proceedings, 2013 Forming Limit Curves are surrounded by uncertainty - in particular the uncertainty surrounding the calculation of limit strains from experimental data. The position dependent method outlined in ISO12004-2 is known to make assumptions regarding the behavior of sheet metal at the onset of necking.
N. Small +6 more
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Calculation of the forming limit curve at fracture
Journal of Materials Science, 1983 The prediction of the forming limit diagram at fracture (FLDF) is of great importance, specially in cases where forming is controlled by fracture instead of necking. A physical model of coalescence is proposed in two cases of internal damage: (i) damage by decohesion of the particle matrix interface, and (ii) damage by failure of the particle.
J.M. Jalinier
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Identification of forming limit curve at fracture in incremental sheet forming
International Journal of Advanced Manufacturing Technology, 2017Computer-aided manufacturing technology is widely used in the sheet-forming industry to predict forming performance. Strain-based forming limit criterion is popularly used for this purpose. In incremental sheet forming, the forming limit curve at fracture (FLCF) is a line from the equi-biaxial strain-point to plane strain-point and is high in ...
Quoc Tuan Pham +2 more
exaly +2 more sources
SpringerBriefs in Applied Sciences and Technology, 2011
In a deforming sheet, the strain state is defined as the ratio between minor strain and major strain. The formability depends on this strain state and can be expressed as the so-called forming limit curve (FLC). In complex strain states the deformation is limited by an instability just as in a tensile test. In cases of negative minor strain this can be
Wilko C Emmens, Emmens Wilko C
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In a deforming sheet, the strain state is defined as the ratio between minor strain and major strain. The formability depends on this strain state and can be expressed as the so-called forming limit curve (FLC). In complex strain states the deformation is limited by an instability just as in a tensile test. In cases of negative minor strain this can be
Wilko C Emmens, Emmens Wilko C
exaly +2 more sources
Determination of the Forming Limit Stress Curve for Anisotropic Sheets
CIRP Annals - Manufacturing Technology, 1987Abstract The aim of this study is to propose s calculation method based on Hill's yield criterium to determine the forming limit stress states for anisotropic sheets. First we determine experimentally the forming limit diagrams of a titanium sheet for various strain path shapes. From these diagrams, we calculate then the limit stress states.
R Arrieux
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Stress-Based Forming Limit Curves
, 2014 Stress-based forming limit ...
T.B. Stoughton, J.W. Yoon
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Materials, 2023 Single-point incremental forming (SPIF) has emerged as a cost-effective and rapid manufacturing method, especially suitable for small-batch production due to its minimal reliance on molds, swift production, and affordability.
The-Thanh Luyen +2 more
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Forming Limit Curve Determination of a DP-780 Steel Sheet [PDF]
, 2015 In the present work, the forming limit curve (FLC) of a 1.1mm thick DP-780 steel sheet is evaluated. The full FLC determination involved tensile tests of planar samples with different notch geometries – providing data in the tension-compression range ...
J W Signorelli
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