Semester of Graduation

Summer 2022

Degree

Master of Science in Mechanical Engineering (MSME)

Document Type

Thesis

Abstract

This thesis focuses on the 3D numerical analysis of the laterally loaded pile. For numerical modeling/analysis, ABAQUS, a widely used commercial software, is used. Non-scour and scour conditions are considered for this thesis. Two elastoplastic constitutive models, Mohr-Coulomb model and Cam Clay model, are applied. Unknown material and interface properties are calibrated based on two references which explained the numerical analysis of the laterally loaded pile under the non-scour condition. Different cases of scour depth, Sd, scour width, Sw, and scour slope angle, a, are applied for the laterally loaded pile analysis under the scour condition.

From the results of the numerical analysis under the scour condition, scour depth, Sd, can be the main factor for the pile capacity changes. Scour width, Sw, and scour slope angle, a, are also the other factors which have an influence on the reaction force changes of the laterally loaded pile. This thesis also describes the plastic deformation/strain results of the laterally loaded pile analysis. From the plastic strain results depending on the scour width, the plastic strain appears on the scour slope when the scour width is narrow. On the other hand, when scour width is sufficiently wide, the plastic strain distribution would be similar to the one when the scour width is infinite. This strain distribution state can be shown in both Mohr-Coulomb model and Cam Clay model. In the view of the scour slope angle, the plastic strain in Cam Clay model is more smoothly expanded onto the scour slope than Mohr-Coulomb model.

Date

7-11-2022

Committee Chair

Chen, Shengli

DOI

10.31390/gradschool_theses.5636

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