<?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>1390-860X</journal-id>
<journal-title><![CDATA[Ingenius. Revista de Ciencia y Tecnología ]]></journal-title>
<abbrev-journal-title><![CDATA[Ingenius]]></abbrev-journal-title>
<issn>1390-860X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Politécnica Salesiana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1390-860X2019000200100</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización mecánica a flexión de materiales compuestos con matriz fotopolimérica reforzados con fibras de abacá y cabuya mediante impresión 3d]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Llanes-Cedeño]]></surname>
<given-names><![CDATA[Edilberto Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peralta-Zurita]]></surname>
<given-names><![CDATA[Diana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pucha-Tambo]]></surname>
<given-names><![CDATA[Marco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha-Hoyos]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Internacional SEK  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Internacional SEK  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Internacional SEK  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Internacional SEK  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<numero>22</numero>
<fpage>100</fpage>
<lpage>112</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S1390-860X2019000200100&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S1390-860X2019000200100&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S1390-860X2019000200100&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los materiales compuestos y la fabricación por impresión 3D son en la actualidad una alternativa en la fabricación de autopartes. La presente investigación tuvo como objetivo caracterizar el material compuesto con matriz de resina fotopolimérica reforzada con fibras naturales de abacá y cabuya fabricados por impresión 3D, para su aplicación en la fabricación de autopartes. Como objeto de estudio se seleccionó la rejilla direccional del ducto de aire acondicionado de un automotor; mediante análisis experimental y simulación computacional se compararon sus características mecánicas. Para la fabricación de las probetas de ensayos se propuso una fracción volumétrica de fibra refuerzo del composite del 20 % en los dos tipos de fibras, el ensayo a flexión se procedió según la norma ASTM 790. Como resultado de la caracterización mecánica de los materiales fabricados se obtuvo que el esfuerzo máximo a flexión de los compuestos reforzados con abacá (77,53 MPa) y cabuya (83,26 MPa) disminuyeron con respecto al material matriz (92,77 MPa). El módulo de elasticidad a la flexión que presentaron compuestos reforzados con abacá (2211,33 MPa) y cabuya (1806,03 MPa) aumentaron con respecto al material matriz (1689,64 MPa), lo que se traduce en un aumento de la rigidez de los materiales caracterizados, haciendo posible la sustitución del material matriz.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Composite materials and the manufacture of auto parts by 3D printing, is currently an alternative in the manufacture of automotive auto parts. The objective of the present investigation was to characterize the composite material with a photopolymer resin matrix reinforced with natural abaca and cabuya fibers manufactured by 3D printing, for its application in automotive autoparts manufacturing. As an object of study, the directional grid of the air conditioning duct of an automotive vehicle is selected, which by means of an experimental analysis and computational simulation, compares its mechanical characteristics; For the manufacture of the test specimens, a composite volumetric reinforcement fiber fraction of 20% was proposed in the two types of fibers, the bending test was carried out according to the ASTM 790 standard. As a result of the mechanical characterization of the manufactured materials it was obtained that the maximum bending stress of the compounds reinforced with abaca (77,53 MPa) and cabuya (83,26 MPa) decreased with respect to the matrix material (92,77 MPa), the modulus of elasticity to flexion that had reinforced compounds with abaca (2211,33 MPa) and abuya (1806,03 MPa) increased with respect to the matrix material (1689,64 MPa), which translates into an increase in the rigidity of the characterized materials, making possible the substitution of the matrix material.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[materiales compuestos]]></kwd>
<kwd lng="es"><![CDATA[impresión 3D]]></kwd>
<kwd lng="es"><![CDATA[fibras de abacá]]></kwd>
<kwd lng="es"><![CDATA[fibras de cabuya]]></kwd>
<kwd lng="es"><![CDATA[matriz fotopolimérica]]></kwd>
<kwd lng="en"><![CDATA[composite materials]]></kwd>
<kwd lng="en"><![CDATA[3D printing]]></kwd>
<kwd lng="en"><![CDATA[abaca fibers]]></kwd>
<kwd lng="en"><![CDATA[cabuya fibers]]></kwd>
<kwd lng="en"><![CDATA[photopolymer matrix]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cars from bio-fibres,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bledzki]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Faruk]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Sperber]]></surname>
<given-names><![CDATA[V. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Macromolecular Materials and Engineering, vol. 291, no. 5, pp. 449&#8211;457]]></source>
<year>2006</year>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Utilización de las fibras del rastrojo de piña (Ananas comusus, variedad champaka) como material de refuerzo en resinas de poliéster,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quesada-Solís]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Alvarado-Aguilar]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sibaja- Ballestero]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Vega-Baudrit]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Iberoamericana de Polímeros, vol. 6, no. 2, pp. 157&#8211;179,]]></source>
<year>2005</year>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Progress report on natural fiber reinforced composites,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Faruk]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Bledzki]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Fink]]></surname>
<given-names><![CDATA[H.-P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sain]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Macromolecular Materials and Engineering, vol. 299, no. 1, pp. 9&#8211;26,]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A review: Natural fiber composites selection in view of mechanical, light weight, and economic properties,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Choi]]></surname>
<given-names><![CDATA[H. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[M. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Macromolecular Materials and Engineering, vol. 300, no. 1, pp. 10&#8211;24]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Modelado numérico del comportamiento de la interface en materiales compuestos,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roshdestwensky,]]></surname>
<given-names><![CDATA[K. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Mroginski]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Morel]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[D&#8217;Ambra]]></surname>
<given-names><![CDATA[R. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Podestá]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Asociación Argentina de Mecánica Computacional, vol. 32, no. 19, pp. 1653&#8211;1670]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Additive manufacturing: technology, applications and research needs,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guo]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Leu,]]></surname>
<given-names><![CDATA[M. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Frontiers of Mechanical Engineering, vol. 8, no. 3, pp. 215&#8211;243]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Application of rapid prototyping technology in automobile manufacturing industry,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[P. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modern Tendencies in Engineering Sciences, ser. Applied Mechanics and Materials, vol. 533. Trans Tech Publications Ltd, 5 2014, pp. 106&#8211;110]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Berchon]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Luyt]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[La impresión 3D. Guía definitiva para makers, diseñadores, estudiantes, profesionales, artistas y manitas en general. Editorial Gustavo Gili]]></source>
<year>2016</year>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Influence of exposure time on mechanical properties and photocuring conversion ratios for photosensitive materials used in additive manufacturing,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bonada]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Muguruza]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Francos]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramis]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<source><![CDATA[Procedia Manufacturing, vol. 13, pp. 762&#8211;769]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="">
<collab>Stratasys.</collab>
<source><![CDATA[Stratasys Ltd]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="">
<collab>W. Callister</collab>
<source><![CDATA[Introducción a la Ciencia e Ingeniería de los Materiales. Editorial Reverté. S. A.]]></source>
<year>2007</year>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Obtención de materiales compuestos de matriz poliéster reforzados con fibra de abacá mediante estratificación manual,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pontón]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Guerrero]]></surname>
<given-names><![CDATA[V. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Tecnológica ESPOL, vol. 23, no. 3, pp. 47&#8211;54]]></source>
<year>2010</year>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes Salinas]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Jácome León]]></surname>
<given-names><![CDATA[A. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudio de la configuración de fibras del material compuesto de matriz epoxi reforzada con fibra de piña y su incidencia en las propiedades mecánicas en la fabricación de butacas deportivas.]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Enhanced rules-of-mixture for natural fibre reinforced polymer matrix (nfrp) composites (comment on lau et al. in volume 136),]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Summerscales]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Virk]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hall]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Composites Part B: Engineering, vol. 160, pp. 167&#8211;169]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Propiedades mecánicas de compuestos biodegradables elaborados a basa de ácido poliláctico reforzados con fibra de abacá,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ponce]]></surname>
<given-names><![CDATA[D. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Guerrero]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Politécnica, vol. 33, no. 2]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Efecto de la Adición de Biodiésel en el Rendimiento y la Opacidad de un Motor Diésel,]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rocha-Hoyos]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Llanes-Cedeño]]></surname>
<given-names><![CDATA[E. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Celi-Ortega]]></surname>
<given-names><![CDATA[S. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Peralta-Zurita]]></surname>
<given-names><![CDATA[D. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Información tecnológica, vol. 30, pp. 137&#8211;146]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tamayo Duque]]></surname>
<given-names><![CDATA[N. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Obtención y Caracterización de Materiales Compuestos de Matriz Poliéster Reforzados con Fibra de Cabuya Mediante Estratificación. Tesis de Grado]]></source>
<year>2012</year>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
