Shear-strain-rate effects in a high-strength aluminum alloy

1972 ◽  
Vol 12 (10) ◽  
pp. 441-447 ◽  
Author(s):  
T. Nicholas ◽  
J. D. Campbell
Keyword(s):  
Aluminum Alloy ◽  
Strain Rate ◽  
Shear Strain ◽  
High Strength ◽  
Shear Strain Rate ◽  
Strain Rate Effects ◽  
High Strength Aluminum Alloy ◽  
Rate Effects

scholarly journals Colloidal gels under shear: Strain rate effects

2013 ◽  
Author(s):  
N. Koumakis ◽  
P. Ballesta ◽  
R. Besseling ◽  
W. C. K. Poon ◽  
J. F. Brady ◽  
...  
Keyword(s):  
Strain Rate ◽  
Shear Strain ◽  
Shear Strain Rate ◽  
Colloidal Gels ◽  
Strain Rate Effects ◽  
Rate Effects

scholarly journals Shearing Rate Effects on Research Centre for Soft Soils (Recess) Clay Using Cone Penetration Test (CPT)

2015 ◽  
Vol 773-774 ◽  
pp. 1555-1559
Author(s):  
Azranasmarazizi Ayob ◽  
Nor Azizi Yusoff ◽  
I. Bakar ◽  
Nur Abidah Azhar ◽  
Ameer Nazrin Abd Aziz
Keyword(s):  
Shear Strength ◽  
Strain Rate ◽  
Shear Strain ◽  
Penetration Rate ◽  
Cone Penetration Test ◽  
Shear Strain Rate ◽  
Penetration Test ◽  
Cone Penetration ◽  
Rate Effects ◽  
Cpt Test

A wide range of industrial applications, on land and offshore, require the solution of time domain problems and an associated understanding of rate effects in clay soils. In recent decades many researchers have examined the correlation between shear strength of soils and variation of shear strain rate and it is generally accepted that the strength increases by 1-5% for each order of magnitude increase in shear strain rate. This paper discusses the effects of penetration rate on the penetration resistance (qc) by using cone penetration test (CPT) test setup. The research had been conducted at RECESS and cone penetration test were used in three selected range of rate which were 0.5 cm/s, 1cm/s and 5cm/s. In addition, Mackintosh probe testhad been considered as comparison with CPT test for the unconfined compressive strength. The result shows different penetration rate influenced the soil shear strength. For the slowest rate (0.5 cm/s), the shear strength was approximately 0.15% less compared to the standard rate (2 cm/s). However, for the highest rate (5 cm/s), the shear strength was 0.22% more than the reference rate (0.5 cm/s). In conclusion, it is suggested that the RECESS clay soil influenced by the rate effect and in agreement with previous research findings.

Strain-Rate Effects in the Propagation of Torsional Plastic Waves

1966 ◽  
Vol 33 (4) ◽  
pp. 917-923 ◽  
Author(s):  
W. E. Baker ◽  
C. H. Yew
Keyword(s):  
Strain Rate ◽  
Shear Strain ◽  
Cross Sections ◽  
Pure Copper ◽  
High Rate ◽  
Strain Rate Effects ◽  
Rate Dependent ◽  
Dependent Theory ◽  
Lower Strain ◽  
Rate Effects

A new method was developed for determining the dynamic stress-strain relationships of materials subjected to high rate of torsional loading. In addition, an investigation of propagation of torsional plastic waves in a long tube was conducted. Commercially pure copper was used throughout both investigations. In the material property studies, shear strains up to 20 percent and shear strain rates to 2100/sec were obtained. The results indicated that copper exhibits significantly lower strain-rate effects than those previously obtained by the longitudinal loading method. In the studies of plastic wave propagation, shear strain-time records at several cross sections along the tube were compared with computed results obtained from the strain-rate-independent and strain-rate-dependent theories. It is concluded that the computed results based on the strain-rate-dependent theory give better agreement with the experiments.

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