Shear Thickening Behaviour of Composite Propellant Suspension under Oscillatory Shear
Keywords: Shear thickening, amplitude sweep, packing fraction, composite propellant, rheology
AbstractComposite propellant suspensions consist of highly filled polymeric system wherein solid particles of different sizes and shapes are dispersed in a polymeric matrix. The rheological behaviour of a propellant suspension is characterised by viscoplasticity and shear rate and time dependant viscosity. The behaviour of composite propellant suspension has been studied under amplitude sweep test where tests were performed by continuously varying strain amplitude (strain in %, γ) by keeping the frequency and temperature constant and results are plotted in terms of log γ (strain amplitude) vs logGʹ and logGʺ (Storage modulus and loss modulus, respectively). It is clear from amplitude sweep test that dynamic moduli and complex viscosity show marked increase at critical strain amplitude after a plateau region, infering a shear thickening behaviour.
How to Cite
SinghD., DombeG., BhongaleC., SinghP., MauryaM., & BhattacharyaB. (2016). Shear Thickening Behaviour of Composite Propellant Suspension under Oscillatory Shear. Defence Science Journal, 66(3), 222-227. https://doi.org/10.14429/dsj.66.8849
Armaments & Explosives
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