eCommons

 

COMPUTATIONAL ANALYSIS OF SURFACE AND INTERFACIAL ENERGY IN THE CONTEXT OF MULTI-PHYSICS AND FRACTURE

Other Titles

Author(s)

Abstract

In this work, we obtain important insights into the multi-scale and multi- physical processes of soft and biological materials, which display complex be- havioral characteristics due to material and geometric complexity during de- formation, damage initiation, and fracture propagation. Hydrogel and certain load-bearing biological tissues are permeated with fluid which leads to rate de- pendent (visco- and poro-elastic) effects as well as a high degree of incompress- ibility, requiring multi-field displacement and pressure theoretical frameworks. The first aim considers how surface stresses due to elastocapillarity effect the swelling and drying kinetics of a spherical hydrogel, leading to a decrease in equilibration time as compared to results where elastocapillarity is not taken into account. This work leads to material insights in complex experimental set- tings such as modeling micro-tissue contractility and studying the behavior of a cell aggregate subjected to ion-gate treatment within a gel. Through use of the phase-field fracture method, soft material damage and fracture can be studied in both a static and dynamic setting. Computational efficiency at the limit of incompressibility is addressed through numerical stabilization schemes which circumvent the inf-sup condition.

Journal / Series

Volume & Issue

Description

Sponsorship

Date Issued

2023-05

Publisher

Keywords

Finite Element Method; Multiphysics; Numerical Methods; Phase Field Fracture; Soft Materials; Surface Mechanics

Location

Effective Date

Expiration Date

Sector

Employer

Union

Union Local

NAICS

Number of Workers

Committee Chair

Bouklas, Nikolaos

Committee Co-Chair

Committee Member

Bonassar, Lawrence
Hui, Chung-Yuen

Degree Discipline

Mechanical Engineering

Degree Name

Ph. D., Mechanical Engineering

Degree Level

Doctor of Philosophy

Related Version

Related DOI

Related To

Related Part

Based on Related Item

Has Other Format(s)

Part of Related Item

Related To

Related Publication(s)

Link(s) to Related Publication(s)

References

Link(s) to Reference(s)

Previously Published As

Government Document

ISBN

ISMN

ISSN

Other Identifiers

Rights

Rights URI

Types

dissertation or thesis

Accessibility Feature

Accessibility Hazard

Accessibility Summary

Link(s) to Catalog Record