<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0870-8312</journal-id>
<journal-title><![CDATA[Ciência & Tecnologia dos Materiais]]></journal-title>
<abbrev-journal-title><![CDATA[C.Tecn. Mat.]]></abbrev-journal-title>
<issn>0870-8312</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Materiais]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0870-83122008000100017</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Residual stress measurement using the contour and the sectioning methods in a mig weld: Effects on the stress intensity factor]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Richter-Trummer]]></surname>
<given-names><![CDATA[Valentin]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tavares]]></surname>
<given-names><![CDATA[Sérgio M. O.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreira]]></surname>
<given-names><![CDATA[Pedro M. G. P.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueiredo]]></surname>
<given-names><![CDATA[Miguel A. V. de]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[Paulo M. S. T. de]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidade do Porto Faculdade de Engenharia IDMEC- Instituto de Engenharia Mecânica]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2008</year>
</pub-date>
<volume>20</volume>
<numero>1-2</numero>
<fpage>114</fpage>
<lpage>119</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0870-83122008000100017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0870-83122008000100017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0870-83122008000100017&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The longitudinal residual stress distribution in a 6082-T6 aluminum alloy MIG butt welded thin plate was determined using the contour method. Although several geometries have been successfully studied with the contour method before, the authors are not aware of previous attempts to use this method in a long narrow section as in the present case. Validation was done using literature data including the CEGB-R6 procedure as well as experimental plate surface measurements obtained using the established sectioning technique. The residual stress measurement was used in fatigue crack growth simulations in order to compare the fatigue behavior of the plate with and without residual stress.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A distribuição longitudinal de tensões residuais de uma placa fina em alumínio 6082-T6, soldada topo-a-topo por arco eléctrico, foi determinada com o método contour. Mesmo tendo esta técnica sido aplicada a várias geometrias distintas, os autores desconhecem a sua aplicação a uma placa de secção fina como a apresentada no presente trabalho. A validação dos resultados foi efectuada através de resultados obtidos na literatura, incluindo o procedimento CEGB-R6, e também através do já conhecido método experimental de seccionamento. A medição de tensões residuais foi utilizada na previsão do crescimento de uma fenda de fadiga, com o intuito de comparar o comportamento ao de uma fenda a crescer na mesma placa livre de tensões residuais.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Contour Method]]></kwd>
<kwd lng="en"><![CDATA[Fatigue crack growth]]></kwd>
<kwd lng="en"><![CDATA[MIG welding]]></kwd>
<kwd lng="en"><![CDATA[Residual stress]]></kwd>
<kwd lng="en"><![CDATA[SIF calibration]]></kwd>
<kwd lng="pt"><![CDATA[Calibração do factor intensidade de tensão]]></kwd>
<kwd lng="pt"><![CDATA[crescimento de fendas de fadiga]]></kwd>
<kwd lng="pt"><![CDATA[método contour]]></kwd>
<kwd lng="pt"><![CDATA[soldadura MIG]]></kwd>
<kwd lng="pt"><![CDATA[tensão residual]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><b>Residual stress measurement using the contour and the sectioning    methods in a mig weld: Effects on the stress intensity factor</b></p>     <p align="center">&nbsp;</p>     <p align="center">Valentin Richter-Trummer, Sérgio M. O. Tavares, Pedro M. G.    P. Moreira, Miguel A. V. de Figueiredo, Paulo M. S. T. de Castro</p>     <p align="center">&nbsp;</p>     <p align="center">IDMEC, Faculdade de Engenharia da Universidade do Porto, Rua    Dr. Roberto Frias, 4200-465 Porto</p>     <p align="center"><a href="mailto:valentin@fe.up.pt">valentin@fe.up.pt</a></p>      <p>&nbsp;</p>      <p align="justify"><b>ABSTRACT:</b> The longitudinal residual stress distribution    in a 6082-T6 aluminum alloy MIG butt welded thin plate was determined using    the contour method. Although several geometries have been successfully studied    with the contour method before, the authors are not aware of previous attempts    to use this method in a long narrow section as in the present case. Validation    was done using literature data including the CEGB-R6 procedure as well as experimental    plate surface measurements obtained using the established sectioning technique.    The residual stress measurement was used in fatigue crack growth simulations    in order to compare the fatigue behavior of the plate with and without residual    stress.</p>     <p align="justify"><b>Keywords:</b> Contour Method, Fatigue crack growth, MIG    welding, Residual stress, SIF calibration</p>     <p align="justify">&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="justify"><b>RESUMO:</b> A distribuição longitudinal de tensões residuais    de uma placa fina em alumínio 6082-T6, soldada topo-a-topo por arco eléctrico,    foi determinada com o método contour. Mesmo tendo esta técnica sido aplicada    a várias geometrias distintas, os autores desconhecem a sua aplicação a uma    placa de secção fina como a apresentada no presente trabalho. A validação dos    resultados foi efectuada através de resultados obtidos na literatura, incluindo    o procedimento CEGB-R6, e também através do já conhecido método experimental    de seccionamento. A medição de tensões residuais foi utilizada na previsão do    crescimento de uma fenda de fadiga, com o intuito de comparar o comportamento    ao de uma fenda a crescer na mesma placa livre de tensões residuais.</p>     <p align="justify"><b>Palavras chave:</b> Calibração do factor intensidade de    tensão, crescimento de fendas de fadiga, método contour, soldadura MIG, tensão    residual</p>      <p>&nbsp;</p>     <p>Texto completo disponível apenas em PDF.</p>     <p>Full text only available in PDF format.</p>      <p>&nbsp;</p>      <p><b>REFERENCES</b></p>      <!-- ref --><p>[1] P. J. Withers, H. K. D. H. Bhadeshia, “Residual stress, Part 1 - Measurement techniques”, Materials Science and Technology, vol. 17 (April 2001) pp. 355-365&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=143325&pid=S0870-8312200800010001700001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p>[2] ASTM E 8M, American Society for Testing and Materials</p>     <p>[3] Lanema catálogo técnico 05 (2005)</p>     ]]></body>
<body><![CDATA[<p>[4] M. B. Prime, “Cross-sectional mapping of residual stresses by measuring the surface contour after a cut”, Journal of Engineering Materials and Technology, Volume 123 (April 2001) pp. 162-168</p>     <p>[5] M. B. Prime, M. R. Hill, A. T. DeWald, R. J. Sebring, V. R. Dave, M. J. Cola, 2002, “Residual stress mapping in welds using the contour method”, in: Trends in Welding Research, Proceeding of the 6th International Conference, April 15-19, 2002, Pine Mountain, Georgia, eds: S.A. David <i>et al.</i>, ASM International (2003) pp. 891-896</p>     <p>[6] A. Lanciotti <i>et al</i>, presentation at the Porto meeting of the European Union DaToN project (April 17-18, 2007)</p>     <p>[7] R. Galatolo, A. Lanciotti, “Fatigue crack propagation in residual stress field of welded plates”, International Journal of Fatigue, vol. 19, (1) (1997) pp. 43-49</p>     <p>[8] British Energy R6 Rev.4 Section IV.4</p>     <p>[9] R. Krueger, “The virtual crack closure technique: history, approach and applications”, ICASE report, NASA (2002)</p>     <p>[10] K. Masubushi, “Analysis of welded structures”, Pergamon, 1st edition (1980)</p>     <p>[11] NASGRO 4.0 database (<a href="http://www.nasgro.swri.org/" target="_blank">http://www.nasgro.swri.org/</a>)</p>     <p>[12] L. Edwards, M. E. Fitzpatrick, P. E. Irving, I. Sinclair, X. Zhang, D. Yapp, “An integrated approach to the determination and consequences of residual stress on the fatigue performance of welded aircraft structures”, Journal of ASTM International, vol. 3, No. 2 (February 2006) pp. 1-17</p>       ]]></body><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Withers]]></surname>
<given-names><![CDATA[P. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhadeshia]]></surname>
<given-names><![CDATA[H. K. D. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Residual stress, Part 1: Measurement techniques]]></article-title>
<source><![CDATA[Materials Science and Technology]]></source>
<year>Apri</year>
<month>l </month>
<day>20</day>
<volume>17</volume>
<page-range>355-365</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
