Transient Thermomechanical Simulation of 7075 Aluminum Contraction around a SiO<sub>2</sub> Microparticle
Pedro Alejandro Tamayo-Meza,
Miguel Ángel Cerro-Ramírez,
Emmanuel Alejandro Merchán-Cruz,
Usiel Sandino Silva-Rivera,
Raúl Rivera-Blas,
Luis Armando Flores-Herrera
Affiliations
Pedro Alejandro Tamayo-Meza
Postgraduate Studies and Research Section, Instituto Politecnico Nacional, Higher School of Mechanical and Electrical Engineering, U. Azcapotzalco, Av. Granjas 682, Mexico City 02250, Mexico
Miguel Ángel Cerro-Ramírez
Mechatronics Engineering Department, Tecnológico de Estudios Superiores de Coacalco, Av. 16 de Septiembre 54, Coacalco de Berriozábal 55700, Edo. de Mex., Mexico
Emmanuel Alejandro Merchán-Cruz
Postgraduate Studies and Research Section, Instituto Politecnico Nacional, Higher School of Mechanical and Electrical Engineering, U. Azcapotzalco, Av. Granjas 682, Mexico City 02250, Mexico
Usiel Sandino Silva-Rivera
SEDENA, D.G.E.M., Escuela Militar de Ingenieros, Secc. of Industrial Engineering, Army and Air Force University, Escuela Militar de Ingenieros, Av. Industria Militar 261, Naucalpan de Juarez 53960, Edo. de Mex., Mexico
Raúl Rivera-Blas
Postgraduate Studies and Research Section, Instituto Politecnico Nacional, Higher School of Mechanical and Electrical Engineering, U. Azcapotzalco, Av. Granjas 682, Mexico City 02250, Mexico
Luis Armando Flores-Herrera
Postgraduate Studies and Research Section, Instituto Politecnico Nacional, Higher School of Mechanical and Electrical Engineering, U. Azcapotzalco, Av. Granjas 682, Mexico City 02250, Mexico
One important challenge that faces the metallurgic industry turns around the constant increment in the mechanical resistance of certain finished products. Metallurgic advantages can be obtained from the inclusion of microparticles in metallic materials, but this inclusion involves complex challenges as the internal stress distribution can be modified. In this work, the simulation of a cooling sequence in 7075 aluminum with a SiO2 microparticle is presented. Two models of two-dimensional (2D) type were constructed in ANSYS®2019 with circular and oval shape microparticles located inside the aluminum. Both models were subjected to the same thermomechanical transient analysis to compare the remaining stress distributions around the microparticles after the thermal load and to observe the effect of the geometrical shape. The results show remaining stresses increased in the oval model as a consequence of the geometrical shape modification. After applying a tension load in the analyzed specimens, shear stress concentrations were observed with a higher magnitude around the covertex of the oval shape. The results can be very useful for the creation of materials with controlled remnant stress located in specific or desired locations in the matrix.
