1 Ocak 2016 Dergi makalesi Açık Erişim

Esfahani, M. Nasr; Sonne, M. Rostgaard; Hattel, J. Henri; Alaca, B. Erdern

MARC21 XML

<?xml version='1.0' encoding='UTF-8'?>
<record xmlns="http://www.loc.gov/MARC21/slim">
  <leader>00000nam##2200000uu#4500</leader>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Thermo-coupled Surface Cauchy-Born theory: An engineering finite element approach to modeling of nanowire thermomechanical response</subfield>
  </datafield>
  <datafield tag="909" ind1="C" ind2="4">
    <subfield code="p">MECHANICS OF MATERIALS</subfield>
    <subfield code="v">94</subfield>
    <subfield code="c">46-52</subfield>
  </datafield>
  <controlfield tag="001">55695</controlfield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">user-tubitak-destekli-proje-yayinlari</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">There are remarkable studies geared towards developing thermomechanical analyses of nanowires based on quasiharmonic and Molecular Dynamics simulations. These methods exhibit limited applicability due to the associated computational cost. In this study an engineering finite-temperature model based on Surface Cauchy-Born theory is developed, where surface energy is accounted for in the prediction of the thermomechanical response. This is achieved by using a temperature-dependent interatomic potential in the standard Cauchy-Born theory with a surface energy contribution. Simultaneous calculation of thermal and mechanical stresses is achieved by eliminating the diagonalization matrix of entropy in the quasiharmonic system. This leads to a reduction in the degrees of freedom by more than 99% in comparison with equivalent Molecular Dynamics models. For the purpose of validation, results obtained on copper and nickel nanowires through the proposed method are compared with those of the more involved Molecular Dynamics simulations. This comparison verifies the significant reduction in the computational process with an acceptable accuracy. Hence, the proposed method provides a promising engineering tool without compromising the underlying physics of the problem and has potential implications in the effective modeling of the nanoscale thermomechanical behavior. (C) 2015 Elsevier Ltd. All rights reserved.</subfield>
  </datafield>
  <datafield tag="650" ind1="1" ind2="7">
    <subfield code="2">opendefinition.org</subfield>
    <subfield code="a">cc-by</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Tech Univ Denmark, Dept Mech Engn, Bldg 425, DK-2800 Lyngby, Denmark</subfield>
    <subfield code="a">Sonne, M. Rostgaard</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Tech Univ Denmark, Dept Mech Engn, Bldg 425, DK-2800 Lyngby, Denmark</subfield>
    <subfield code="a">Hattel, J. Henri</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Alaca, B. Erdern</subfield>
  </datafield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="b">article</subfield>
    <subfield code="a">publication</subfield>
  </datafield>
  <datafield tag="542" ind1=" " ind2=" ">
    <subfield code="l">open</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="u">Koc Univ, Dept Mech Engn, TR-34450 Istanbul, Turkey</subfield>
    <subfield code="a">Esfahani, M. Nasr</subfield>
  </datafield>
  <datafield tag="260" ind1=" " ind2=" ">
    <subfield code="c">2016-01-01</subfield>
  </datafield>
  <controlfield tag="005">20210315235424.0</controlfield>
  <datafield tag="909" ind1="C" ind2="O">
    <subfield code="o">oai:zenodo.org:55695</subfield>
    <subfield code="p">user-tubitak-destekli-proje-yayinlari</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="z">md5:f8a6be0d6ded9e4965bf8a3b7c085ece</subfield>
    <subfield code="s">229</subfield>
    <subfield code="u">https://aperta.ulakbim.gov.trrecord/55695/files/bib-aa85aa96-ead0-4a19-ade5-271a9b206f65.txt</subfield>
  </datafield>
  <datafield tag="540" ind1=" " ind2=" ">
    <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield>
    <subfield code="a">Creative Commons Attribution</subfield>
  </datafield>
  <datafield tag="024" ind1=" " ind2=" ">
    <subfield code="a">10.1016/j.mechmat.2015.11.011</subfield>
    <subfield code="2">doi</subfield>
  </datafield>
</record>