Incrementally objective implicit integration of hypoelastic–viscoplastic constitutive equations based on the mechanical threshold strength model

2013 ◽  
Vol 53 (5) ◽  
pp. 941-955 ◽  
Author(s):  
Hashem M. Mourad ◽  
Curt A. Bronkhorst ◽  
Francis L. Addessio ◽  
Carl M. Cady ◽  
Donald W. Brown ◽  
...  
Keyword(s):  
Constitutive Equations ◽  
Strength Model ◽  
Implicit Integration ◽  
Mechanical Threshold ◽  
Threshold Strength

scholarly journals Implicit integration scheme for porous viscoplastic potential-based constitutive equations

2011 ◽  
Vol 10 ◽  
pp. 1544-1549 ◽  
Author(s):  
S. Msolli ◽  
O. Dalverny ◽  
J. Alexis ◽  
M. Karama
Keyword(s):  
Constitutive Equations ◽  
Integration Scheme ◽  
Implicit Integration

Implicit Integration of Cyclic Inelastic Constitutive Equations

2002 ◽  
Vol 2002.51 (0) ◽  
pp. 375-376
Author(s):  
Yuuki NANAMEKI ◽  
Mineo KOBAYASHI ◽  
Nobutada OHNO
Keyword(s):  
Constitutive Equations ◽  
Implicit Integration

scholarly journals I. After-Effects of Repetitive Activity in a Nerve Ending

1959 ◽  
Vol 43 (2) ◽  
pp. 335-345 ◽  
Author(s):  
Werner R. Loewenstein ◽  
Stanley Cohen
Keyword(s):  
Mechanical Stimulation ◽  
Nerve Ending ◽  
Sense Organ ◽  
Repetitive Stimulation ◽  
Pacinian Corpuscles ◽  
After Effects ◽  
Nerve Impulses ◽  
Mechanical Threshold ◽  
Threshold Strength

Repetitive mechanical stimulation causes depression of excitability in isolated Pacinian corpuscles: the mechanical threshold of the sense organ for producing nerve impulses increases progressively with time of repetitive stimulation. The effect is completely reversible; it can be elicited with repetitive stimuli of less than threshold strength. Within certain limits, the depression increases as a function of strength and frequency of the repetitive stimuli.

The mechanical threshold stress constitutive-strength model description of HY-100 steel

2000 ◽  
Vol 31 (8) ◽  
pp. 1985-1996 ◽  
Author(s):  
D. M. Goto ◽  
R. K. Garrett ◽  
J. F. Bingert ◽  
S. R. Chen ◽  
G. T. Gray
Keyword(s):  
Threshold Stress ◽  
Model Description ◽  
Strength Model ◽  
Mechanical Threshold

The effects of strain and strain rate on residual microstructures in copper

1986 ◽  
Vol 44 ◽  
pp. 420-421
Author(s):  
M. F. Stevens ◽  
P. S. Follansbee
Keyword(s):  
Strain Rate ◽  
Applied Stress ◽  
Threshold Stress ◽  
Rate Sensitivity ◽  
Viscous Drag ◽  
Strain Rates ◽  
Strain And Strain Rate ◽  
Threshold Strength ◽  
Mechanism Transition ◽  
Intrinsic Strength

The strain rate sensitivity of a variety of materials is known to increase rapidly at strain rates exceeding ∼103 sec-1. This transition has most often in the past been attributed to a transition from thermally activated guide to viscous drag control. An important condition for imposition of dislocation drag effects is that the applied stress, σ, must be on the order of or greater than the threshold stress, which is the flow stress at OK. From Fig. 1, it can be seen for OFE Cu that the ratio of the applied stress to threshold stress remains constant even at strain rates as high as 104 sec-1 suggesting that there is not a mechanism transition but that the intrinsic strength is increasing, since the threshold strength is a mechanical measure of intrinsic strength. These measurements were made at constant strain levels of 0.2, wnich is not a guarantee of constant microstructure. The increase in threshold stress at higher strain rates is a strong indication that the microstructural evolution is a function of strain rate and that the dependence becomes stronger at high strain rates.

Sign in / Sign up

Export Citation Format

Share Document