rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    non sort: A
    title: Nonlocal Approach to Study Quasi Brittle Fracture with Graph Based Finite Element Analysis
  name:
    name part: Shin, Ho Yong
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Reddy, Junuthula N.
    role:
      role term: thesis advisor.
  name:
    name part: Texas A&M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2023
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Concrete is the most widely used quasi-brittle material in building and infrastructure constructions. Such structures can be exposed to various types of load conditions. Some of these can potentially result in the catastrophic fracture of such structures. Hence, it is imperative to study and understand the damage behavior of quasi-brittle materials in order to design the most optimal concrete-material composition and structure to prevent total failure of the structure. Various numerical models have been developed over the years to describe the characteristics of damage behavior in quasi-brittle materials. However, the following limitations exist with proposed models: (a) in extended finite element method (XFEM), a special finite element is required rather than using existing conventional finite elements; (b) in peridynamics, a substantial reformulation of the conventional balance laws introduces additional complexity; and (c) in phase field model, a crack closure behavior is described with a complex energy decomposition. In this thesis, a multiple cracking model is developed to overcome the the limitations of these existing models, where the model is formulated using the thermodynamically-consistent two- and three-dimensional Graph-based Finite-Element Analysis (GraFEA) framework. The key features of the model are as follows: (a) there is no need to reformulate the fundamental balance laws,(a) a discrete number of microcrack planes are introduced at each material point to describe a probabilistic description of damage evolution, (c) a purely kinematic approach to representing crack opening and closing is introduced, and (d) conventional elements typically found in the libraries of existing finite-element codes can be used to mesh the structures. The developed theoretical and computational approach has been used to simulate concrete fracture under quasi-static and low-speed impact conditions. Also, a fracture length scale controlled gypsum-based composite material is…
  note: by Ho Yong Shin.
  note: "Major Subject: Mechanical Engineering"
  note: Includes vita.
  note: Doctor of Philosophy Texas A&M University 2022 https://hdl.handle.net/1969.1/198704
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major Mechanical Engineering
  subject:
    topic: Quasi-brittle material
  subject:
    topic: Impact prediction
  subject:
    topic: GPU parallelization
  subject:
    topic: Nonlocal fracture
  subject:
    topic: Graph-based FEA
  identifier: https://hdl.handle.net/1969.1/198704
  record info:
    record content source: TXA
    record creation date: 250130
    record change date: 20250326141435.7
    record identifier: in00005621349
    language of cataloging:
      language term: eng