<?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>1815-5944</journal-id>
<journal-title><![CDATA[Ingeniería Mecánica]]></journal-title>
<abbrev-journal-title><![CDATA[Ingeniería Mecánica]]></abbrev-journal-title>
<issn>1815-5944</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería Mecánica. Instituto Superior Politécnico "José Antonio Echeverría"]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59442024000100010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del comportamiento a fatiga de unión por arco con núcleo fundente de acero AISI 1015]]></article-title>
<article-title xml:lang="en"><![CDATA[Ealuation of the fatigue behavior of a flux cored arc welding joint of AISI 1015 steel]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almaguer-Zaldivar]]></surname>
<given-names><![CDATA[Pavel Michel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabral-Miramontes]]></surname>
<given-names><![CDATA[José Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zambrano-Robledo]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada-Cingualbres]]></surname>
<given-names><![CDATA[Roberto Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Domínguez]]></surname>
<given-names><![CDATA[Asdrúbal Braulio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sanfort-Navarro]]></surname>
<given-names><![CDATA[Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Holguín Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ingeniería Mecánica y Eléctrica ]]></institution>
<addr-line><![CDATA[Monterrey ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Holguín Facultad de Ingeniería Centro de Estudios CAD-CAM]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Camagüey Facultad de Ingeniería Mecánica ]]></institution>
<addr-line><![CDATA[Camagüey ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<volume>27</volume>
<numero>1</numero>
<fpage>10</fpage>
<lpage>19</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59442024000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59442024000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59442024000100010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La integridad estructural generalmente está dada por la resistencia mecánica de las uniones, y entre estas se encuentran las uniones soldadas. Durante el servicio pueden aparecer cargas variables en el tiempo, por lo que es necesario conocer datos que permitan predecir el fallo por fatiga de las soldaduras. Este artículo tuvo como objetivo determinar la curva S-N de una unión soldada a tope de acero AISI 1015, fabricada mediante el proceso de soldadura por arco con núcleo fundente. El material de aporte fue el alambre ER71-T y el gas de protección fue dióxido de carbono. Los ensayos a fatiga se realizaron de acuerdo a la norma ASTM 739-91 en una máquina universal MTS810. Se utilizaron probetas de sección transversal rectangular. El ciclo de carga fue asimétrico a tracción, con un coeficiente de asimetría de 0,1. Se obtuvo que el límite de resistencia a la fatiga &#61555;01 para la unión ensayada es igual a 161,4 MPa, a un punto de corte de 1 500 000 ciclos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The structural integrity is generally given by the mechanical behavior of the joints, and among these are the welded joints. During service, variable loads may appear over time, so it is necessary to know data to predict the fatigue failure of welds. This article aims to determine the S-N curve of an AISI 1015 steel butt-welded joint, manufactured by the flux-cored arc welding process. The filler material is the ER71-T wire and the protection gas was carbon dioxide. The fatigue tests were carried out according to the ASTM 739-91 standard in a MTS810 universal testing machine. Rectangular cross section specimens were used. The load cycle was asymmetric in tensile, with an asymmetry ratio of 0,1. It was obtained that the fatigue strength limit &#61555;01 for the tested joint is equal to 161,4 MPa, at a cut point of 1 500 000 cycles.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[unión soldada a tope]]></kwd>
<kwd lng="es"><![CDATA[curva S-N]]></kwd>
<kwd lng="es"><![CDATA[acero AISI 1015]]></kwd>
<kwd lng="es"><![CDATA[Soldadura por arco con núcleo fundente]]></kwd>
<kwd lng="es"><![CDATA[material de aporte alambre ER71-T]]></kwd>
<kwd lng="en"><![CDATA[butt welded joint]]></kwd>
<kwd lng="en"><![CDATA[S-N curve]]></kwd>
<kwd lng="en"><![CDATA[AISI 1015 steel]]></kwd>
<kwd lng="en"><![CDATA[flux core arc welding]]></kwd>
<kwd lng="en"><![CDATA[filler material ER71-T wire]]></kwd>
</kwd-group>
</article-meta>
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