Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications

Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications

Bibliographic Details
Main Author: Barlingay, Manish
Language:English
Published: University of Cincinnati / OhioLINK 2012
Subjects:
Mechanics
Tissue Tearing
Surgical Applications
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342729583
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ucin13427295832021-08-03T06:15:48Z Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications Barlingay, Manish Mechanics Tissue Tearing Surgical Applications <p>The use of modeling and simulation is growing rapidly for use in applications such as the surgery simulations, injury mechanics, tissue engineering, etc. The aim of this study is to model and simulate tissue tearing and failure for use in such applications. The thesis work is divided into two parts.</p><p>In the first part, the goal is to characterize the mechanics of tearing in thin soft materials. We use the cohesive zone modeling approach to characterize the propagation of tears in a processed meat product (PMP). The bulk response of the PMP is modeled with a hyperelastic material model and the interface with a modified version of the traction-separation law proposed by Park, Paulino and Roesler. A multistep optimization approach is developed to determine the bulk and the cohesive model parameters from uniaxial extension and tearing experiments.</p><p>In the second part, the goal is to build a framework for conducting finite element simulations of various mesh fixation techniques used in hernia repair surgeries. We construct finite element models to simulate the failure of the abdominal fasical tissue-surgical mesh interface when held together with surgical sutures in the first case and surgical glue in the second. A ductile damage model is used to simulate tissue failure in the sutured fixation model while a bi-linear traction-separation cohesive model is used to simulate interfacial failure in the glued fixation model. The overall force-displacement response is analyzed in both cases and the trend is compared with the experimental response. The trend in both cases is found to match closely with the experimental response.</p> 2012-10-08 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342729583 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342729583 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Mechanics
Tissue Tearing
Surgical Applications
spellingShingle Mechanics
Tissue Tearing
Surgical Applications
Barlingay, Manish
Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications
author Barlingay, Manish
author_facet Barlingay, Manish
author_sort Barlingay, Manish
title Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications
title_short Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications
title_full Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications
title_fullStr Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications
title_full_unstemmed Modeling and Simulation of Tissue Tearing and Failure for Surgical Applications
title_sort modeling and simulation of tissue tearing and failure for surgical applications
publisher University of Cincinnati / OhioLINK
publishDate 2012
url http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342729583
work_keys_str_mv AT barlingaymanish modelingandsimulationoftissuetearingandfailureforsurgicalapplications
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