60666 20231023123340.0 doi 10.1155/2014/483028 sideral 98064 ART-2015-98064 eng Valladares Hernando, David Universidad de Zaragoza (orcid)0000-0002-6046-4558 Application of Computational-Experimental Methods for Designing Optimized Semitrailer Axle Supports 2015 Access copy available to the general public Unrestricted Computational and experimental methods were applied to the design and optimization of a semitrailer axle support subjected to fatigue loads. Numerical results based on the finite element method (FEM) were correlated with extensometric tests to assess the accuracy of the computational method. This paper is focused on the “minimum radius manoeuvre.” This situation represents the highly critical load case occurring in a semitrailer operation where the tractor vehicle pulls the semitrailer’s kingpin at approximately 90° with respect to its longitudinal axis, and high stress and strain phenomena take place in the axle supports’ structure. Loads and boundary conditions that correspond to this load case were first adjusted by means of experimental tests and could be later applied to each semitrailer axle support in the numerical model. In this analysis, the stress-strain elastic-plastic curves of the base material, the welding, and the HAZ have been incorporated to the numerical models. Fatigue ¿-¿ curves combined with the maximum Von Mises equivalent stresses obtained in the computational analysis provided a maximum number of cycles that the semitrailer axle support could reach in case of the minimum radius manoeuvre being applied to the vehicle in a repeated manner. The initial design could then be optimized to improve its fatigue life. info:eu-repo/grantAgreement/ES/MINECO/TRA2012-38826-C02-02 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 0.64 2015 THERMODYNAMICS 48 / 57 = 0.842 2015 Q4 T3 ENGINEERING, MECHANICAL 104 / 131 = 0.794 2015 Q4 T3 0.26 2015 Mechanical Engineering 2015 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Carrera Alegre, Marco Universidad de Zaragoza (orcid)0000-0001-8089-3133 Castejón Herrer, Luis Universidad de Zaragoza (orcid)0000-0002-9007-1560 Martín Lafuente, Carlos 5004 530 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Ingen.e Infraestr.Transp. 5004 545 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Ingeniería Mecánica 5004 X Universidad de Zaragoza Dpto. Ingeniería Mecánica Proy. investigacion HJA 7, 2 (2015), 483028 [19 pp.] Adv. Mech. Eng. Advances in Mechanical Engineering 1687-8132 1567106 http://zaguan.unizar.es/record/60666/files/texto_completo.pdf Versión publicada 101097 http://zaguan.unizar.es/record/60666/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:60666 articulos driver 2023-10-23-12:20:41 ARTICLE