https://www.scipedia.com/wd/index.php?action=history&feed=atom&title=Torres_et_al_2018aTorres et al 2018a - Revision history2026-08-03T14:36:11ZRevision history for this page on the wikiMediaWiki 1.27.0-wmf.10https://www.scipedia.com/wd/index.php?title=Torres_et_al_2018a&diff=258049&oldid=prevMateriales.Compuestos at 17:28, 14 October 20222022-10-14T17:28:46Z<p></p>
<a href="https://www.scipedia.com/wd/index.php?title=Torres_et_al_2018a&diff=258049&oldid=245095">Show changes</a>Materiales.Compuestoshttps://www.scipedia.com/wd/index.php?title=Torres_et_al_2018a&diff=245095&oldid=prevScipediacontent at 07:31, 3 May 20222022-05-03T07:31:15Z<p></p>
<a href="https://www.scipedia.com/wd/index.php?title=Torres_et_al_2018a&diff=245095&oldid=238762">Show changes</a>Scipediacontenthttps://www.scipedia.com/wd/index.php?title=Torres_et_al_2018a&diff=238762&oldid=prevScipediacontent: Scipediacontent moved page Draft Content 863174049 to Torres et al 2018a2022-03-31T15:51:36Z<p>Scipediacontent moved page <a href="/public/Draft_Content_863174049" class="mw-redirect" title="Draft Content 863174049">Draft Content 863174049</a> to <a href="/public/Torres_et_al_2018a" title="Torres et al 2018a">Torres et al 2018a</a></p>
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</td></tr></table>Scipediacontenthttps://www.scipedia.com/wd/index.php?title=Torres_et_al_2018a&diff=238761&oldid=prevScipediacontent: Created page with "== Abstract == This study aim at understanding the void formation, transport mechanisms and porosity evolution during OoA consolidation process. The laminates were conformed..."2022-03-31T15:51:34Z<p>Created page with "== Abstract == This study aim at understanding the void formation, transport mechanisms and porosity evolution during OoA consolidation process. The laminates were conformed..."</p>
<p><b>New page</b></p><div>== Abstract ==<br />
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This study aim at understanding the void formation, transport mechanisms and porosity evolution during OoA consolidation process. The laminates were conformed by stacking and compacting of prepregs by two different technologies: manual (Hand lay-up, HLU) and automatic (Automated fiber placement, AFP). Subsequently the laminates were cured by the vacuum bag only (VBO) technique in an industrial oven at atmospheric pressure. The porosity characterization was performed using ultrasound and x-ray tomography technologies at different stages of the cure cycle. Ultrasonic inspections showed that the porosity is heterogeneously distributed, where the higher volumetric fraction of pores is located in the center of the laminate. X-ray tomography provided three-dimensional (3D) information of samples of the laminates and it allowed a quantitative and qualitative study of the pores within the tows of fibers and the porosity located between the layers of prepregs during the curing process.<br />
The prepregs designed for out of autoclave are partially impregnated in such a way to provide air evacuation channels in the fiber tows. The porosity of these channels was efficiently extracted and a volumetric fraction of pores entrapped between layers were evacuated during the curing process. The behavior of the evacuation channels and the porosity evolution for both stacking technologies were compared. An analytical model of the evolution of a pore was also developed.<br />
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== Full document ==<br />
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