Skip to Main content Skip to Navigation
Journal articles

Experimental and numerical analysis concerning the behaviour of OL50 steel grade specimens coated with polyurea layer under dynamics loadings

Abstract : This study refers to an experimental and numerical evaluation of a polyurea coating layer influence on the dynamic behaviour of OL50 specimens. Mechanical quasi-static and dynamic tensile tests were performed in axial loading conditions, for 2 mm steel plate specimens. Several metallic specimens have been previously coated with 1.5 mm and 3 mm respectively thickness polyurea layer and tested in traction. The findings results indicate that the presence of polyurea changes the loading pattern of metallic material in the necking area. In terms of polyurea coated metal specimens fracture, there was clearly observed a change of fracture limit. One possible explanation of this phenomenon is the modification of triaxiality state in the necking zone, fact proven by the numerical simulations. Test results indicate that the presence of polyurea layer delays the necking onset phenomenon which precedes the OL50 metallic specimen fracture
Complete list of metadatas

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01321357
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, May 25, 2016 - 2:57:47 PM
Last modification on : Monday, January 20, 2020 - 10:26:02 PM

Links full text

Identifiers

Citation

Florina Bucur, Eugen Trana, Adrian Rotariu, Adinel Gavrus, Cristian Barbu, et al.. Experimental and numerical analysis concerning the behaviour of OL50 steel grade specimens coated with polyurea layer under dynamics loadings. EPJ Web of Conferences, EDP Sciences, 2015, 94, pp.04044. ⟨10.1051/epjconf/20159404044⟩. ⟨hal-01321357⟩

Share

Metrics

Record views

355