---

Journal of Applied Nonlinear Dynamics 3(4) (2014) 403--412 | DOI:10.5890/JAND.2014.12.011

Piotr Kosiński; Jerzy Osiński

The Institute of Machine Design Fundaments, Faculty of Automotive and Construction Machinery Engineering, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Poland

Download Full Text PDF

 

Abstract

The main object of the present study is to investigate the mechanical behavior of laminated car windshield in the case of a pedestrian head impact. Windshield Finite Element model consist one layer o f P VB and two layer s of glass. The layer of P VB was modeled in a few cases: as elastic, elasto-plastic, "low-density foam" and hyper elastic material model. The layers of glass we remodeled as "brittle cracking" material model included in Abaqus simulation environment. Both of layers was modeled as solid. Examined also two type of PVB mesh elements: " 3 D Stress " and " Cohesive ". In addition, consideration was two types of connection between glass and PVB layers: first merge and second tie connection. Analysis was performed with different types of mesh. Radial mesh proved to be better than rectangular mesh to reflect the phenomenon of cracking glass. Furthermore, the peak value of the head form linear acceleration has been tested for different thickness and material models of PVB layer.

Acknowledgments

The authors are grateful the Organizing Committee of the 12th Conference on Dynamical Systems—Theory and Applications for the possibility of presented this research.

References

1. [1]	Peng, Y.(2013), Finite element modeling of crash test behavior for windshield laminated glass, International Jounral of Impact Engineering, 57, 27–35.

2. [2]	Timmel, M. (2007), A finite element model for impact simulation with laminated glass, International Jounral of Impact Engineering, 34, 1465–1478.

3. [3]	Bohan, L. et al. (2012), Systematic Experimental Study on Mechanical Behavior of PVB Material under various Loading Condition, Polymer Engineering and Science, 52 (2), 1137–1147.

4. [4]	Pyttel, T. (2011), Failure criterion for laminated glass under impact loading and its application in finite element simulation, International Jounral of Impact Engineering, 38, 252–263.

5. [5]	http://blog.myphillylawyer.com/wp-content/uploads/2012/07/1-6-11-crash-windshield-broken-by-SvenleriStock 000014061964XSmall.jpg