Semester

Spring

Date of Graduation

2003

Document Type

Thesis

Degree Type

MS

College

Statler College of Engineering and Mineral Resources

Department

Mechanical and Aerospace Engineering

Committee Chair

Nilay Mukherjee.

Abstract

A 3D finite element model was built to study the mechanical response of the cell to load. The model included major structural components of a cell like cytoskeletal elements, cell membrane and the presence of internal fluid pressure. The cell was considered as a pressurized, fluid filled bag where inflation of the cell membrane is resisted by the cytoskeletal elements. The behavior of the cell model with microtubules prone to buckling and stabilized by actin filaments was also studied.;A point load was applied to a microtubule in a cell model with there buckling effect taken into consideration. The microtubule started to buckle at around 54.5 pN. A parametric analysis was performed to study the effect of each structural component on overall stiffness of cell measured in terms of modulus. This study showed microtubules and internal fluid pressure were important elements in determining the overall stiffness of the cell.

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