2026-06-18T05:46:49Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/74522023-04-11T12:36:28Zcom_10259_4809com_10259_5086com_10259_2604col_10259_4810

Size effect of steel fiber–reinforced concrete cylinders under compressive fatigue loading: Influence of the mesostructure González Cabrera, Dorys Carmen Mena Alonso, Álvaro Ruiz, Gonzalo Ortega Parreño, José Joaquín Poveda, Elisa Mínguez Algarra, Jesús Yu, Rena C. Rosa, Ángel de la Vicente Cabrera, Miguel Ángel Size effect in fatigue Steel fiber-reinforced concrete Computed tomography Mesostructure Materiales de construcción Ingeniería civil Building materials Civil engineering This study deals with the influence of the fiber concrete mesostructure on the size effect under compressive fatigue loading. For this purpose, three series of cylindrical specimens of steel fiber–reinforced concrete were fabricated. Before fatigue testing, all the cylinders were scanned and the main morphological, orientation, and distribution parameters of the pores and fibers were checked. The images reveal that, near the cylinders’ walls, the porosity is lower than that in the cores and is even lower for large sizes. Additionally, larger specimens are more vulnerable to compressive fatigue loading, resulting in a reduction in fatigue life. The authors are grateful for the financial support from the Ministerio de Economía y Competitividad, Spain with grant nos. PID2019-110928RBC32, PID2019–110928RB–C31, and RTC–2017–6736–3, and from the Junta de Comunidades de Castilla-La Mancha, Spain through grant no. SBPLY/19/180501/000220. 2023-02-14T08:41:20Z 2023-02-14T08:41:20Z 2023-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0142-1123 http://hdl.handle.net/10259/7452 10.1016/j.ijfatigue.2022.107353 eng International Journal of Fatigue. 2023, V. 167, 107353 https://doi.org/10.1016/j.ijfatigue.2022.107353 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110928RB-C32/ES/DAÑO A FATIGA ALTERNA EN HORMIGON DE MUY ALTA RESISTENCIA A TRACCION REFORZADO CON FIBRAS. MAPEO Y CUANTIFICACION DEL DAÑO CON TOMOGRAFIA COMPUTERIZADA/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110928RB-C31/ES/GENERACION DE DAÑO Y MODELADO PROBABILISTA/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RTC-2017-6736-3/ES/DESARROLLO INNOVADOR DE UN SISTEMA DE CONSTRUCCIÓN IN SITU DE TORRES EÓLICAS DE GRAN ALTURA, CON HORMIGÓN DE ALTAS PRESTACIONES REFORZADO CON FIBRAS Y SIN ARMADURA CONVENCIONAL/ info:eu-repo/grantAgreement/JCCM//SBPLY%2F19%2F180501%2F000220/ Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf Elsevier