Journal
BUILDINGS
Volume 12, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/buildings12030271
Keywords
glass; impact; fracture; parametric study; combined finite-discrete element method
Funding
- National Natural Science Foundation of China [51808368]
- Qinglan Project of Jiangsu Province of China
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX20_1096]
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In this study, the combined finite-discrete element method was used to investigate the impact failures of monolithic glass, focusing on soda-lime glass. The method accurately evaluated the contact forces and structural deformation by discretizing the glass and incorporating a finite element formulation. The results revealed the impact fracture mechanism of soda-lime glass and provided guidance for its design and manufacturing.
Due to the brittleness, monolithic glass may fracture under impact, resulting in catastrophic sequences. The combined finite-discrete element method, i.e., FDEM, is employed to investigate both the oblique and the perpendicular impact failures of monolithic glass parametrically, particularly the soda-lime glass. Using FDEM, glass is discretised into discrete elements where a finite element formulation is incorporated, leading to accurate evaluation of the contact forces and structural deformation. Following the basic theories of the FDEM, a cohesive Mode I fracture model of glass is briefly introduced. Numerical examples are given for the verification of the employed fracture model and the applicability of the FDEM, and comparisons have been made against the computational and experimental results in the literature. The investigated parameters include the impact velocity, the impact angle, the material properties of glass, etc. The obtained results not only revealed the impact fracture mechanism of soda-lime glass but also provided guidance for its design and manufacturing.
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