Abstract
In the last few years, the mechanical response of hollow thermoplastic microsphere-elastomer matrix composites has been investigated. The large majority of the studies focuses on their compressive properties and particularly on the stress-strain response. In the present paper, large strain uniaxial tension experiments are conducted on thermoplastic microsphere filled polyurethane elastomer. Six volume fractions are considered. Thanks to a two-camera setup and digital image correlation measurements, the remarkable volumetric behaviour is highlighted. First, the hydrostatic pressure vs. volume change response during a loading-unloading cycle consists of a hysteresis loop, and its size is directly related to the volume fraction of microspheres in the composite. Second, this loop admits a complex shape with several extrema. This remarkable response can be considered as the macroscopic signature of the complex microstructural phenomena involved during deformation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
