scholarly journals A Study on the Consolidation Characteristics Using the Constant Strain Rate Test of Remolded Gwangyang Marine Clay

2014 ◽  
Vol 13 (4) ◽  
pp. 33-43
Author(s):  
Joeng-Min Jang ◽  
Jin-Young Kim ◽  
Woon-Ki Joeng ◽  
Jin Choi ◽  
Young-Sik Jin ◽  
...  
Keyword(s):  
Strain Rate ◽  
Constant Strain Rate ◽  
Marine Clay ◽  
Rate Test

Effect of Severe Caliber Rolling on Superplastic Properties of Mg-3Al-1Zn (AZ31) Alloy

2012 ◽  
Vol 735 ◽  
pp. 327-331 ◽  
Author(s):  
Rajendra Doiphode ◽  
Rahul Ramesh Kulkarni ◽  
S.V.S. Narayana Murty ◽  
Nityanand Prabhu ◽  
Bhagwati Prasad Kashyap
Keyword(s):  
Strain Rate ◽  
Constant Strain Rate ◽  
Material Constant ◽  
Az31 Alloy ◽  
Strain Rate Range ◽  
Constitutive Relationship ◽  
Grain Sizes ◽  
Different Temperatures ◽  
Rate Test ◽  
Superplastic Properties

Fine grains were developed in Mg-3Al-1Zn (AZ31) alloy by isothermal caliber rolling at five different temperatures in the range of 250-450°C. The samples of different grain sizes were deformed by constant strain rate and differential strain rate test techniques over the temperature range of 220-450 °C and strain rate range of 10-5 to 10-1 s-1. The effects of grain size, test temperature and strain rate on flow stSuperscSuperscript textript textress were analysed to develop the constitutive relationship for supSuperscript texterplastic deformation. The parameters of the constitutive relationship obtained from the constant strain rate tests and differential strain rate tests were used to find out the material constant A of the constitutive relationship.

Weighted residual approach to constant strain rate test

2011 ◽  
Vol 48 (4) ◽  
pp. 671-675 ◽  
Author(s):  
Dieter Stolle ◽  
Jonathan Stolle
Keyword(s):  
Strain Rate ◽  
Pore Pressure ◽  
Constant Strain Rate ◽  
Time Factors ◽  
Transient Effects ◽  
Coefficient Of Consolidation ◽  
Virtual Displacement ◽  
Constant Rate ◽  
Rate Test ◽  
Displacement Approach

This note presents a virtual displacement approach to analyze the constant rate of strain consolidation test. It yields simplified “exact” equations within the weighted residual context for interpreting test data. Equations corresponding to larger time factors are similar to those presented in the literature, although the transient effects are clearer than in previous formulations. An advantage of the framework is that assumptions concerning the uniformity of properties through a sample can be relaxed. The derivation shows that E must be constant for the coefficient of consolidation to be independent of position. Depending on the sequencing of sublayers, it is shown that basal pore pressure can be higher or lower for layered media compared with uniform material when allowing E to vary, even though cv is kept constant.

Evaluation of Sulfide SCC Resistance of High Strength Steels by the Constant-Strain-Rate Method

CORROSION ◽  
1978 ◽  
Vol 34 (6) ◽  
pp. 193-198 ◽  
Author(s):  
F. F. LYLE ◽  
E. B. NORRIS
Keyword(s):  
Strain Rate ◽  
Constant Strain Rate ◽  
High Strength Steels ◽  
High Strength ◽  
Oil Field ◽  
Low Alloy Steels ◽  
Alloy Steels ◽  
Rate Test ◽  
Rate Method ◽  
Engineering Alloys

Abstract This paper presents a description of application of constant strain rate test to evaluation of stress corrosion cracking (SCC) resistance of engineering alloys, in general, and to oil field materials exposed to H2S environments, in particular. Tests to discriminate between susceptible and nonsusceptible low alloy steels exposed to an H2S-CO2 environment and to determine the temperature at which the alloy (in a specific heat treat condition) becomes immune to SCC are described.

Viscous Property of Clay

2012 ◽  
Vol 455-456 ◽  
pp. 1532-1537 ◽  
Author(s):  
Jian Zhong Li
Keyword(s):  
Strain Rate ◽  
Water Content ◽  
Axial Strain ◽  
Constant Strain Rate ◽  
Test Results ◽  
Compression Tests ◽  
Viscous Property ◽  
One Dimensional ◽  
Saturated Clay ◽  
Rate Test

Viscous property of saturated, wet, air-dried and oven-dried clay was evaluated by performing a series of one dimensional compression tests including primary loading, creep, global unloading and reloading tests. In the tests, axial strain rate was changed stepwise many times during monotonic primary loading at a constant strain rate. Test results show that viscous property of clay with different water content under different test condition is similar. In order to evaluate the viscous property of clay, parameter β was introduced basing on the present test results of clay and author’s previous study. β value of clay with different water content under different test condition varied from 0.034 to 0.064. Test results show that β value of saturated clay is generally larger than that of dried clay.

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