Soft impact responses of laminated glass simulated with the combined finite-discrete element method
Abstract
Purpose
This paper aims to investigate the responses of laminated glass under soft body impact, including elastic impact and fracture/fragmentation consideration.
Design/methodology/approach
The simulation uses the combined finite-discrete element method (FDEM) which combines finite element mesh into discrete elements, enabling the accurate prediction of contact force and deformation. Material rupture is modelled with a cohesive fracture criterion, evaluating the process from continua to discontinua.
Findings
Responses of laminated glass under soft impact (both elastic and fracture) agree well with known data. Crack initiation time in laminated glass increases with the increase of the outside glass thickness. With the increase of Eprojectile, failure mode is changing from flexural to shear, and damage tends to propagate longitudinally when the contact surface increases. Results show that the FDEM is capable of modelling soft impact behaviour of laminated glass successfully.
Research limitations/implications
The work is done in 2D, and it will not represent fully the 3D mechanisms.
Originality/value
Elastic and fracture behaviour of laminated glass under soft impact is simulated using the 2D FDEM. Limited work has been done on soft impact of laminated glass with FDEM, and special research endeavours are warranted. Benchmark examples and discussions are provided for future research.
Keywords
Acknowledgements
Financial supports from Jiangsu Shuang-Chuang Program and Suzhou University of Science and Technology Natural Research Fund are appreciated. Support on the FDEM from Professor Antonio Munjiza is gratefully acknowledged.
Citation
Chen, X. and Chan, A. (2018), "Soft impact responses of laminated glass simulated with the combined finite-discrete element method", Engineering Computations, Vol. 35 No. 3, pp. 1460-1480. https://doi.org/10.1108/EC-10-2017-0386
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited