Mechanical Engineering ETDs

Publication Date

Spring 4-6-2018

Abstract

A Finite Element model was developed to model crack development in additively manufactured additively manufactured Acrylonitrile Butadiene Styrene (ABS) cantilever beams. Experiments were conducted on the beams with both shock and random vibration base excitations. The base excitations induced damage in the beam that cause crack propagation. It was observed during the cracks developmental stages that an increase in damping occurred. The proposed Finite Element model also showed similar increases in damping from the addition of Coulomb damping forces.

Keywords

Finite Element, crack development, Coulomb damping

Degree Name

Mechanical Engineering

Level of Degree

Masters

Department Name

Mechanical Engineering

First Committee Member (Chair)

John Russell

Second Committee Member

Yu-Lin Shen

Third Committee Member

Carl Sisemore

Document Type

Thesis

Language

English

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