Cyclic Direct Simple Shear tests - Effect of static shear stress

Sarra Lbibb; Majid Manzari; Sarra Lbibb; Majid Manzari; Sarra Lbibb; Majid Manzari

doi:10.17603/ds2-q3fz-kq91

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PRJ-3484 | LEAP-2022 - Effects of overburden stress, relative density, and static shear stress on cyclic strength of Ottawa F65 sand

PI
Project Type	Experimental
Natural Hazard Type(s)	Earthquake
Facilities
Awards	Liquefaction Experiments and Analysis Projects \| CMMI 1635524
Related Work	Linked Dataset \| PRJ-1783: LEAP-2017 GWU Laboratory Tests Linked Dataset \| PRJ-1780: LEAP-GWU-2015 Laboratory Tests Linked Dataset \| PRJ-2136: LEAP-Asia-2018: Stress-strain response of Ottawa sand in Cyclic Torsional Shear Tests Linked Dataset \| Stress-strain behavior and liquefaction strength characteristics of Ottawa F65 sand Linked Dataset \| Stress-strain behavior of Ottawa sand in cyclic direct simple shear and modeling of cyclic strength using Artificial Neural Networks
Keywords	Confining Stress, Cyclic Direct Simple Shear Test, Liquefaction, Relative Density, Sand, Static Shear Stress, Stress-Strain Response

Description:

The stress-strain-strength behavior of Ottawa F-65 sand is investigated through a series of stress-controlled Cyclic Direct Simple Shear (CDSS) tests conducted as part of the Liquefaction Experiments and Analysis Project (LEAP-2022). The tests were performed with two different overburden stresses on specimens prepared with different relative densities and subjected to different static (initial) shear stresses prior to cyclic shearing. The report included here presents the setup and experimental procedure, as well as the liquefaction strength curves and the results obtained from each test. The dataset presented in this report builds on the soil characterization tests, cyclic triaxial tests, and direct simple shear tests performed for the LEAP-2017, LEAP-2018/9, and LEAP-2020 (ElGhoraiby, Park and Manzari, 2017, 2018a, b, 2020). The current dataset is archived on DesignSafe-CI and a MATLAB script is also provided for post-processing and visualization of the experimental data.

Experiment | Cyclic Direct Simple Shear tests - Effect of static shear stress

Cite This Data:

Lbibb, S., M. Manzari (2022). "Cyclic Direct Simple Shear tests - Effect of static shear stress", in LEAP-2022 - Effects of overburden stress, relative density, and static shear stress on cyclic strength of Ottawa F65 sand. DesignSafe-CI. https://doi.org/10.17603/ds2-q3fz-kq91

View Data

Author(s)	;
Facility	Geotechnical Engineering Laboratory - The George Washington University
Experiment Type	Cyclic Direct Simple Shear Tests
Equipment Type	SGI-Type Direct Simple Shear Equipment
Date of Experiment	2020-01-06 ― 2021-03-05
Date Published	2022-11-05
DOI	10.17603/ds2-q3fz-kq91
License	Open Data Commons Attribution

Description:

The stress-strain behavior and liquefaction strength of Ottawa F65 sand was investigated through an extensive series of cyclic direct simple shear (CDSS) tests. The study quantified the effects of static shear stress on the cyclic strength of Ottawa F65 sand. The database of CDSS tests was used to develop an Artificial Neural Networks model to predict Ottawa F65 cyclic strength.

Report | Summary Report on Ottawa F65 Sand CDSS Tests

Analysis | MATLAB script for visualization of CDSS results.

Model Configuration | Direct Simple Shear Experimental Setup

Sensor Information | Direct Simple Shear Test Sensors

Event | CDSS tests with Sig_v = 100 kPa, Dr = 67%, Alpha = 0.4

Event | CDSS tests with Sig_v = 100 kPa, Dr = 67%, Alpha = 0.3

Event | CDSS tests with Sig_v = 40 kPa, Dr = 66.4%, Alpha = 0.375

Event | CDSS tests with Sig_v = 40 kPa, Dr = 66.4%, Alpha = 0.25

Experiment | Cyclic Direct Simple Shear tests - Effect of relative density

Cite This Data:

Lbibb, S., M. Manzari (2022). "Cyclic Direct Simple Shear tests - Effect of relative density", in LEAP-2022 - Effects of overburden stress, relative density, and static shear stress on cyclic strength of Ottawa F65 sand. DesignSafe-CI. https://doi.org/10.17603/ds2-z7zb-bq89

View Data

Author(s)	;
Facility	Geotechnical Engineering Laboratory - The George Washington University
Experiment Type	Cyclic Direct Simple Shear tests
Equipment Type	SGI-type Direct Simple Shear equipment
Date of Experiment	2020-01-06 ― 2021-03-05
Date Published	2022-11-05
DOI	10.17603/ds2-z7zb-bq89
License	Open Data Commons Attribution

Description:

The stress-strain behavior and liquefaction strength of Ottawa F65 sand was investigated through an extensive series of cyclic direct simple shear (CDSS) tests. The study quantified the effects of relative density on the cyclic strength of Ottawa F65 sand. The database of CDSS tests was used to develop an Artificial Neural Networks model to predict Ottawa F65 cyclic strength.

Report | Summary Report on Ottawa F65 Sand CDSS Tests

Analysis | MATLAB script for visualization of CDSS results.

Model Configuration | Direct Simple Shear Experimental Setup

Sensor Information | Direct Simple Shear Test Sensors

Event | CDSS tests with Sig_v = 40 kPa, Dr = 75.5%, Alpha = 0

Event | CDSS tests with Sig_v = 40 kPa, Dr = 71.2%, Alpha = 0

Event | CDSS tests with Sig_v = 40 kPa, Dr = 66.2%, Alpha = 0

Event | CDSS tests with Sig_v = 40 kPa, Dr = 55.2%, Alpha = 0

Experiment | Cyclic Direct Simple Shear tests - Effect of overburden stress

Cite This Data:

Lbibb, S., M. Manzari (2022). "Cyclic Direct Simple Shear tests - Effect of overburden stress", in LEAP-2022 - Effects of overburden stress, relative density, and static shear stress on cyclic strength of Ottawa F65 sand. DesignSafe-CI. https://doi.org/10.17603/ds2-52dm-s780

View Data

Author(s)	;
Facility	Geotechnical Engineering Laboratory - The George Washington University
Experiment Type	Cyclic Direct Simple Shear tests
Equipment Type	SGI-type Direct Simple Shear equipment
Date of Experiment	2020-01-06 ― 2021-03-05
Date Published	2022-11-05
DOI	10.17603/ds2-52dm-s780
License	Open Data Commons Attribution

Description:

The stress-strain behavior and liquefaction strength of Ottawa F65 sand was investigated through an extensive series of cyclic direct simple shear (CDSS) tests. The study quantified the effects of overburden stress on the cyclic strength of Ottawa F65 sand. The database of CDSS tests was used to develop an Artificial Neural Networks model to predict Ottawa F65 cyclic strength.

Report | Summary Report on Ottawa F65 Sand CDSS Tests

Analysis | MATLAB script for visualization of CDSS results.

Model Configuration | Direct Simple Shear Experimental Setup

Sensor Information | Direct Simple Shear Test Sensors

Event | CDSS tests with Sig_v = 100 kPa, Dr = 66.7%, Alpha = 0

Event | CDSS tests with Sig_v = 40 kPa, Dr = 66.2%, Alpha = 0

Data Depot | DesignSafe-CI