Compressive response of a glass–polymer system at various strain rates

•Compressive response of a glass–polymer system at various strain rates was investigated using a split Hopkinson pressure bar (SHPB) setup.•The characteristics of the dynamic stress-strain relation were revealed.•The relations for the rate dependencies of yield stress, maximum stress and strain ener...

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Bibliographic Details
Published in:Mechanics of materials 2016-04, Vol.95, p.49-59
Main Authors: Fan, J.T., Weerheijm, J., Sluys, L.J.
Format: Article
Language:English
Subjects:
Composite
Crack initiation
Dynamic tests
Dynamical systems
Dynamics
Elastomers
Fracture
Fracture mechanics
Mechanical properties
Polymer
Polyurethane resins
Scanning electron microscopy
Split Hopkinson pressure bar
Strain rate
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Summary:•Compressive response of a glass–polymer system at various strain rates was investigated using a split Hopkinson pressure bar (SHPB) setup.•The characteristics of the dynamic stress-strain relation were revealed.•The relations for the rate dependencies of yield stress, maximum stress and strain energy were illustrated.•Crack initiation, propagation and fragmentation fracture during a dynamic loading were observed by a high-speed camera.•Dynamic damage mechanisms were explored by a scanning electron microscopy.•The differences in static and dynamic mechanical properties of the glass–polymer system and monolithic polymer material were characterized. A glass–polymer system of a polyurethane elastomeric matrix with a single 3 mm-diameter glass particle was investigated using a split Hopkinson pressure bar (SHPB) setup for revealing the dynamic compressive mechanical response. This study produced the characteristics of the dynamic stress–strain relation and the relations for the rate dependencies of yield stress, maximum stress and strain energy. A high-speed camera was applied to record crack initiation, propagation and fragmentation fracture. Scanning electron microscopy (SEM) was employed to explore the dynamic damage mechanisms. The static and dynamic compressive mechanical properties of a glass–polymer system were compared with these of monolithic polyurethane elastomeric polymer material. The results of this study provide the dynamic response at unit cell level and are used for development and evaluation of transparent, impact-resistant protection concepts of glass–polymer systems.
ISSN:0167-6636
1872-7743
DOI:10.1016/j.mechmat.2015.12.005