Cracks in Materials with Hyperbolic-Sine-Law Creep Behavior

2009 ◽  
pp. I-532-I-532-19
Author(s):  
JL Bassani
Keyword(s):  
Creep Behavior ◽  
Hyperbolic Sine ◽  
Sine Law

Analysis of the Rolling Process Assuming Materials Described by Hyperbolic Sine Law

1983 ◽  
Vol 105 (3) ◽  
pp. 168-172 ◽  
Author(s):  
Y. S. Lee ◽  
L. C. Smith
Keyword(s):  
Stress Distribution ◽  
Creep Behavior ◽  
Coulomb Friction ◽  
Horizontal Stress ◽  
Rolling Process ◽  
Practical Application ◽  
Rate Dependent ◽  
Hyperbolic Sine ◽  
Roll Gap ◽  
Sine Law

An analysis of the rolling process is performed presuming rate dependent materials described by the hyperbolic sine law which represents the low and medium stress levels. The materials described by the power law illustrate the deviation from actual creep behavior in the region of small creep rates. The assumptions employed in the analysis are consistent with assumptions commonly used in the analysis of the rolling process. The vertical and horizontal stress distribution in the roll gap for various Coulomb friction coefficients are obtained by solving the VonKarman equilibrium equation. The intention of the analysis discussed herein is to emphasize the method used to solve the equation defining the rolling process presuming hyperbolic sine law materials rather than to show the practical application of the results obtained from this analysis.

Notch-Tip Stresses in a Creeping Solid

1984 ◽  
Vol 51 (3) ◽  
pp. 475-480 ◽  
Author(s):  
J. L. Bassani
Keyword(s):  
Strain Rate ◽  
Power Law ◽  
High Stress ◽  
Shear Loading ◽  
Antiplane Shear ◽  
Sharp Notch ◽  
Hyperbolic Sine ◽  
Notch Tip ◽  
As Stress ◽  
Sine Law

At high stress levels the creep strain rate for many materials varies as the exponential of stress while at low stresses it varies as stress to some power. An analysis is presented for a sharp notch under antiplane shear loading in a material that deforms by hyperbolic-sine-law creep, ε˙c = ε˙0[sinh(σ/σ0)]n. The asymptotic notch-tip stress intensification is weaker and the strain-rate intensification is stronger than for a power-law creeping material.

Analysis of the Secondary Creep of a Rotating Flat Disk

1972 ◽  
Vol 1 (4) ◽  
pp. 227-228
Author(s):  
J.G. Lenard
Keyword(s):  
Creep Strain ◽  
Creep Behavior ◽  
Flow Rule ◽  
Strain Rates ◽  
Secondary Creep ◽  
Uniform Thickness ◽  
Hyperbolic Sine ◽  
Flat Disk ◽  
Linear Creep ◽  
Associated Flow Rule

Secondary creep behavior of a rotating hollow disk of uniform thickness is considered. The hyperbolic sine creep law is used to relate stress and creep strain rate; the applicability of Tresca’s criterion and associated flow rule is assumed. The creep strain rates so obtained are compared to results, given by the exponential and linear creep laws. Recommended limits of applicability of the linear and exponential laws are established.

A Flow Potential Function for Hyperbolic Sine Creep

1978 ◽  
Vol 45 (3) ◽  
pp. 679-681
Author(s):  
E. A. Davis
Keyword(s):  
Creep Rate ◽  
Uniaxial Tension ◽  
Potential Function ◽  
Yield Surface ◽  
Minimum Creep Rate ◽  
Creep Tests ◽  
Hyperbolic Sine ◽  
Flow Potential ◽  
Sine Law

A new flow potential function or yield surface is presented. This function produces the hyperbolic sine law relating stress to minimum creep rate for creep tests in uniaxial tension.

Hot Compressive Flow Behavior of Inconel 600 Superalloy

2011 ◽  
Vol 117-119 ◽  
pp. 1018-1021
Author(s):  
Horng Yu Wu ◽  
Pin Hou Sun ◽  
Feng Jun Zhu ◽  
Jing Hao Liao ◽  
Shang Chih Wang ◽  
...  
Keyword(s):  
Structural Changes ◽  
Flow Behavior ◽  
Strain Rates ◽  
Compression Tests ◽  
Flow Curves ◽  
Inconel 600 ◽  
Constitutive Analysis ◽  
Hyperbolic Sine ◽  
Compressive Flow ◽  
Sine Law

The flow behavior and associated structural changes of an Inconel 600 superalloy were analyzed by using hot compression tests in the temperature and strain rate ranges of 850–1200 °C and 0.001 to 10 s–1, respectively. The stress–strain curves exhibited the trend typical of materials in which deformation is recovery-controlled at high strain rates and low temperatures, while at low strain rates and high temperatures, the flow curves exhibited a softening typical of recrystallization phenomena. Constitutive analysis was carried out to investigate the hot deformation mechanism using the hyperbolic sine law.

COMPRESSIVE CREEP BEHAVIOR OF REACTORCONTROL ROD MATERIAL Ag-In-Cd ALLOY

2013 ◽  
Vol 49 (8) ◽  
pp. 1012 ◽  
Author(s):  
Hongxing XIAO ◽  
Chongsheng LONG ◽  
Le CHEN ◽  
Bo LIANG
Keyword(s):  
Creep Behavior ◽  
Compressive Creep
Sign in / Sign up

Export Citation Format

Share Document