Preliminary tests of post-repair properties of the vehicle body energy-consuming structures

• Published in: IOP conference series. Materials Science and Engineering 2018-09, Vol.421 (3), p.32008
• Main Authors: Gałdyński, D, Lisowski, M
• Format: Article
• Language: English
• Subjects: Accidents; Compressive strength; Empirical analysis; Energy consumption; Mechanical properties; Numerical analysis; Repair
• ISSN: 1757-8981; 1757-899X; 1757-899X
• DOI: 10.1088/1757-899X/421/3/032008

The subject matter of the publication concerns numerical analysis and empirical research on the strength parameters of thin-walled energy-consuming structures subjected to crushing, which include the front longitudinal of the vehicle. The influence of welding processes applied during post-accident repair on selected mechanical properties of repaired elements was investigated. The process of creating a half wave will be touched, as a result of local buckling of the profile which is characteristic for the fourth class cross-sections, responsible for the progressive course of deformation. The results of the numerical analysis were compared with the results of empirical studies for selected states of stresses. The strength tests of connections as well as the entire models are presented. The result of the above tests is an attempt to answer the question: whether the partial change of the front longitudinal, in the conditions specified by the vehicle manufacturer in post-accident repair technology of energy-consuming elements, restores the usable properties of strength properties to the original state.