Experimental Research on Automotive Laminated Glass

• Autorzy: Kosiński P. , Mańkowski J. , Żach P.
• Języki publikacji: EN

Abstrakty

EN

During the impact of a motor vehicle on a pedestrian, the head, depending on the height of the victim, hits the hood or the windscreen. The windscreens are laminates made of two outer layers of glass and an inner layer of Polyvinyl Butyral resin (PVB). The aim of the study is to estimate pedestrian safety during an impact on laminated glass. Material examination of PVB are a fundamental step to understanding the behavior of the material as a component of a composite glass. Quasi-static stretching of the PVB sample was performed at deformation speed from 0.0066 to 0.13 [1/s]. Obtained curves shows that depending on deformation speed, material deforms in a range of 192-292% until destruction and the tensile strength varies in the range of 92-106MPa. After deformation of the material, its shape restored to its original dimensions. This proves its hyperelastic properties. Obtained curves were used to validate a material model in a virtual environment. An identical stretch test was performed in the FEM system. Coincidence with the real sample for the 2-order Ogden model was obtained. The effect of type and size of finite elements on the glass-cracking process was considered using the Johnson-Holmquist model. Simulations of PVB layer destruction were performed using the maximum deformation criterion. The developed PVB and glass model was used in impactor - adult head impact simulations on a complete laminated glass.

Słowa kluczowe

EN

polyvinyl butyral; laminated glass; safety of pedestrians

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2017
• Tom: Vol. 41, No. 4
• Strony: 97--100
• Opis fizyczny: Bibliogr. 2 poz., il., schem., tab., wykr.

Twórcy

autor

Kosiński P.

• Warsaw University of Technology, Institute of Machine Design Fundamentals

autor

Mańkowski J.

• Warsaw University of Technology, Institute of Machine Design Fundamentals

autor

Żach P.

• Warsaw University of Technology, Institute of Machine Design Fundamentals

Bibliografia

• 1. Cronin, D. S., Bui, K., Kaufmann, C., McIntost, G., and Berstad, T. (2003). Implementation and validation of the Johnson-Holmquist ceramic material model in lsdyna. in 4-th European ls-dyna users conference. Google Scholar.
• 2. Kosiński, P. and Osiński, J. (2015). Laminated windshield breakage modelling in the context of headform impact homologation tests. International Journal of Applied Mechanics and Engineering, 20(1):87–96.