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: Continuum Coupled Moisture-mechanical Constitutive Model for Asphalt Concrete
  name:
    name part: Shakiba, Maryam
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Little, Dallas N.
    role:
      role term: thesis advisor.
  name:
    name part: Masad, Eyad
    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: 2014
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: The presence and flow of moisture degrade engineering properties of asphalt concrete as part of thermodynamic, chemical, physical, and mechanical processes. This detrimental effect is referred to as moisture damage. The aim of this dissertation is the development of physically based constitutive relationships along with a computational tool for the fundamental analysis of combined mechanical and moisture induced damage of asphalt concrete. Such a tool can greatly contribute to an improved material selection procedure and give insight into the various damage inducing mechanisms in asphalt concrete. In this dissertation, thermo-hygro-mechanical constitutive relationships are developed based on the principle of virtual power and laws of thermodynamics in order to simulate moisture-induced damage of asphalt concrete. An evolution function is proposed to consider the detrimental effect of moisture diffusion and presence inside the material. The effect of pore water pressure is incorporated using Biot's coefficient. The Continuum Damage Mechanics (CDM) theory is extended to Continuum Moisture-Mechanical Damage Mechanics (CMMDM) to incorporate the moisture degradation effect and couple it to the mechanical response of asphalt concrete. The proposed moisture damage constitutive relationships are implemented in the Pavement Analysis using Nonlinear Damage Approach (PANDA) finite element (FE) package to model the moisture damage effect on the complex environmental-mechanical response of asphalt concrete. The developed constitutive relationship and framework are validated over different loading scenarios and a range of experimental measurements. The developed constitutive relationship and framework are applied to simulate pavement performance. The focus is on investigating the effects of various moisture conditioning periods on permanent deformation (rutting) and fatigue damage of asphalt pavements. The constitutive and computational models are used to develop a framework for …
  note: by Maryam Shakiba.
  note: "Major Subject: Civil Engineering"
  note: Includes vita.
  note: Doctor of Philosophy Texas A & M University 2013 http://hdl.handle.net/1969.1/151963
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major Civil Engineering
  subject:
    topic: Moisture Damage
  subject:
    topic: Asphalt Concrete Pavements
  subject:
    topic: Continuum Moisture-Mechanical Coupling
  identifier: http://hdl.handle.net/1969.1/151963
  record info:
    record content source: TXA
    record creation date: 140620
    record change date: 20151206101818.0
    record identifier: in00003458530
    language of cataloging:
      language term: eng