Dynamic response of laminated automotive glazing impacted by spherical featureless headform

Abstract

During vehicle accidents, the occupant's head impacting on windshield or side window is commonly observed. Head-impact safety is a significant consideration in the design of passenger vehicles, so it is necessary to investigate the mechanical behavior of automotive glazing subjected to occupant head impact. An analytical solution based on the large-deflection plate theory is presented for the dynamic response of a laminated automotive glazing subjected to simulated head impact. The results of the analytical solution are compared with those obtained using a 3-D nonlinear finite element model. In order to understand the failure behavior of laminated automotive glazing, various geometric parameters are investigated to determine their effect on the maximum principal stress and hence failure initiation.

Experimental investigation on the radial and circular crack propagation of PVB laminated glass subject to dynamic out-of-plane loading

“…However, there are few reported investigations that focused on the dynamic fracture of PVB laminated glass except some numerical simulations based on various of computational methods, such as traditional finite element analysis [7,8], extended finite element method [9], discrete element method [10] and among others. Experimental studies on dynamic fracture of PVB laminated glass available are focused on interfacial decohesion and large deformation in cracked laminates [11][12][13][14] which provide important insights into the dynamic failure of PVB laminated glass.…”

Soft impact responses of laminated glass simulated with the combined finite-discrete element method

“…In automotive industry, focus is given to the head impact onto the laminated windshield or side windows, rendering a better design guidance ensuring occupants or pedestrians from further injury (Untaroiu et al, 2007). To help understand the crack initiation and further fracture behaviour of glass and laminated glass under head impact, a series of work on the computational modelling has been performed (Xu and Li, 2009;Zhao et al, 2005Zhao et al, , 2006aZhao et al, , 2006b. A failure model based on a critical energy threshold was proposed by Pyttel et al (2011), and crack growth is determined by the maximum stress criterion.…”

Design and Simulation of Car Windshield Broken Mechanism Based on ABAQUS

“…Zhao (Zhao S et al, 2012) put forward the theory of the dynamic response of laminated glass plate based on the theory of large perturbation, in order to analyze the impact of the head car laminated glass.…”