Issue 48

C. E. Cruz Gonzalez et alii, Frattura ed Integrità Strutturale, 48 (2019) 530-544; DOI: 10.3221/IGF-ESIS.48.51 530 Fatigue strength evaluation and fracture behavior of joined dual phase steel/AA6061-T6 aluminum alloy Celso Eduardo Cruz Gonzalez CIDESI Estado de México. Av. Desarrollo s/n, Parque Industrial Cuamatla, 54763 Cuautitlán Izcalli, Mexico. ecruz@cidesi.edu.mx , http://orcid.org/0000-0001-7620-9052 Ruben Perez Mora CONACYT - CENTA. Carr. Est. 200 Km 23, Parque Aeroespacial Queretaro, Colón, Qro, Mexico. ruben.perez@cidesi.edu.mx, https://orcid.org/0000-0002-3663-8001 Saul Daniel Santillan Gutierrez Centro de Alta Tecnología, Universidad Autónoma Nacional de México, campus Juriquilla, Qro, Mexico. saulsan@unam.mx, http://orcid.org/0000-0003-2556-1640 Jose Jaime Taha-Tijerina Universidad de Monterrey, Departamento de Ingeniería, San Pedro Garza García, N.L., México, METALSA Technology Department, Parque de Investigación e Innovación Tecnológica (PIIT), Apodaca, N.L, Mexico jose.taha@metalsa.com, https://orcid.org/0000-0001-6781-9414. Benjamin Vargas Arista Tecnológico Nacional de México, Instituto Tecnológico de Tlalnepantla, División de Estudios de Posgrado e Investigación, Av. Instituto Tecnológico s/n, Col. La Comunidad, Tlalnepantla de Baz, Estado de Méx., Mexico. benvargasa@gmail.com, http://orcid.org/0000-0002-8210-9186 Arturo Barba Pingarron Centro de Ingeniería de Superficies y Acabados (CENISA), Departamento de Ingeniería de Diseño y Manufactura. División de Ingeniería Mecánica e Industrial, Ciudad Universitaria, CDMX, Mexico arbapin5@gmail.com, http://orcid.org/0000 0001 7285 9429. A BSTRACT . The fatigue strength evaluation and fracture behavior for a dual phase steel-AA6061-T6 bonded joints with three different adhesives (DC-80, Betamate 120 and MP55420) are presented in this paper. Single lap shear tests were used to determine maximum shear loads, for the single lap shear testing for 5.0 mm overlap length were 2 to 3.5 times higher in comparison to the 12.7 mm overlap length specimens. The results for the strain measurement revealed that higher strain-stress were developed in the 6061-T6 aluminum alloy adherend and in all cases they were lower than the adherends yield strength. Fatigue testing was carried out at 30, 50 and 70 % of the maximum shear load, 0.1 of reversibility load ratio (R) and 30 Hz of frequency. After Citation: Cruz Gonzalez, C.E., Perez Mora, R., Santillan Gutierrez, S., Taha-Tijerina, J., Vargas Arista, B., Barba Pigarron, A., Fatigue strength evaluation and fracture behavior of joined dual phase steel/AA6061-T6 aluminum alloy, Frattura ed Integrità Strutturale, 48 (2019) 530-544. Received: 29.01.2019 Accepted: 27.02.2019