eprintid: 46687 rev_number: 16 eprint_status: archive userid: 1903 dir: disk0/00/04/66/87 datestamp: 2017-06-20 07:13:26 lastmod: 2017-06-20 07:13:26 status_changed: 2017-06-20 07:13:26 type: conference_item metadata_visibility: show creators_name: Alcalá Fazio, Enrique creators_name: Rincón Dávila, David creators_name: Furones Crespo, Arturo creators_name: Martín López, Ángel Luis creators_id: enrique.alcala@upm.es creators_id: arturo.furones@upm.es title: Experimental assesment of the strength of coaches structures after collision repair publisher: Universidad Politécnica de Valencia rights: by-nc-nd ispublished: pub subjects: mecanica subjects: transporte full_text_status: public pres_type: paper keywords: vehicle repair, regulation 66, rollover, coach, crashworthiness abstract: Vehicles repair after an accident and the quality assurance of the repair is a major safety issue. If the vehicle type category is M3, collective road transport vehicles, there is an additional concern due to their high number of occupants, the responsibility of third parties transport and the severity of some type of collisions such as rollovers. Moreover it has to be considered that the high cost of these vehicles and the investment made on them by the transport companies makes it profitable to proceed to their repair after some accidents. In this work it is quantified the loss of energy absorption capabilities of the structural steel profiles of rectangular hollow section used in the construction of these vehicles. The deformation energy has been measured by means of bending tests and calculating the bending moment vs bending angle curve. The load has been applied to reach 10, 15 and 20 permanent bending angles, representing those rollover structural deformations found on coach collisions of different severities. All test specimens have been straightened and bended up to 20 degrees some in the same bending direction as initial bend test and some in the opposite direction. The results show a significant loss of strength of the profiles and the final influence on a repaired structure has been quantified modeling with a FEM model a standard Regulation ECE 66 of Geneva type approval test. It is then demonstrated how it should be defined requirements for repaired buses and coaches after their repair of structural damages in collisions. date_type: published date: 2016-06 place_of_pub: Valencia pagerange: 2571-2578 event_title: CIT2016 – XII Congreso de Ingeniería del Transporte event_location: Valencia (España) event_dates: 7-9 junio 2016 event_type: conference id_number: 10.4995/CIT2016.2016.4040 institution: Industriales department: Ingenieria_mecanica_2014 refereed: TRUE isbn: 978-84-608-9960-0 book_title: Libro de Actas CIT2016. Congreso de Ingeniería del Transporte official_url: http://ocs.editorial.upv.es/index.php/CIT/CIT2016/paper/view/4040 comprojects_type: CM comprojects_code: P2013/MIT-2713 comprojects_acronym: SEGVAUTO-TRIES-CM comprojects_title: Project "SEGuridad de los Vehículos AUTOmóviles, por un TRansporte Inteligente, Eficiente y Seguro" citation: Alcalá Fazio, Enrique and Rincón Dávila, David and Furones Crespo, Arturo and Martín López, Ángel Luis (2016). Experimental assesment of the strength of coaches structures after collision repair. In: "CIT2016 – XII Congreso de Ingeniería del Transporte", 7-9 junio 2016, Valencia (España). ISBN 978-84-608-9960-0. pp. 2571-2578. https://doi.org/10.4995/CIT2016.2016.4040 . document_url: https://oa.upm.es/46687/1/INVE_MEM_2016_253383.pdf