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Title of Journal: Exp Mech

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Abbravation: Experimental Mechanics

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Springer US

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DOI

10.1007/978-3-319-30084-9_12

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1741-2765

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NonNewtonian Behavior of Ballistic Gelatin at Hig

Authors: G Subhash J Kwon R Mei D F Moore
Publish Date: 2011/06/14
Volume: 52, Issue: 6, Pages: 551-560
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Abstract

A coordinated modeling and experimental effort to investigate the shear stressshear strain rate response of ballistic gelatin is presented A powerlaw constitutive model that captures nonNewtonian shearthickening behavior the evolution of viscosity and the momentum diffusion at high shear rates is adopted A simple asymptotic relationship between the maximum wall shear stress and the maximum striking wall velocity is derived in the high diffusion rate regime for a shear flow between two parallel plates Experimental investigation is conducted on double lapshear test fixture with gelatin specimens of different thicknesses subjected to high strain rate input on the inner surface generated by a polymer split Hopkinson pressure bar This test fixture allows measurement of transmitted shear stress as well as visualization of momentum diffusion through gelatin when imaged by a high speed camera Gelatin specimens of various thicknesses were used for extracting the powerlaw model parameters It is found that ballistic gelatin behaves as a shearthickening fluid at high shear rates with a powerlaw exponent of 222


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Other Papers In This Journal:

  1. Internal Deformation Measurement of Polymer Bonded Sugar in Compression by Digital Volume Correlation of In - situ Tomography
  2. Dynamic Separation of Resistance Spot Welded Joints: Part II—Analysis of Test Results and a Model
  3. Hydrodynamic Interactions at Low Reynolds Number
  4. Impact of Experimental Uncertainties on the Identification of Mechanical Material Properties using DIC
  5. New Developments in Proton Radiography at the Los Alamos Neutron Science Center (LANSCE)
  6. A Tensile Split Hopkinson Bar for Testing Particulate Polymer Composites Under Elevated Rates of Loading
  7. Mechanical Properties of Ti-6Al-4V Selectively Laser Melted Parts with Body-Centred-Cubic Lattices of Varying cell size
  8. Hybrid Thermoelastic Stress Analysis of a Pinned Joint
  9. Experimental Testing of a Moving Force Identification Bridge Weigh-in-Motion Algorithm
  10. Sensitivity to Axial Stress of Electro-Mechanical Impedance Measurements
  11. Accuracy of the Sampling Moiré Method and its Application to Deflection Measurements of Large-Scale Structures
  12. Modification of the Shear-Compression Specimen for Large Strain Testing
  13. Analysis of Cracks and Deformations in a Full Scale Reinforced Concrete Beam Using a Digital Image Correlation Technique
  14. Slip Damping Mechanism in Welded Structures Using Response Surface Methodology
  15. Effect of Varying Test Parameters on Elastic–plastic Properties Extracted by Nanoindentation Tests
  16. Application of Digital Image Correlation (DIC) in Dynamic Notched Semi-Circular Bend (NSCB) Tests
  17. Experimental Methodology for Studying Strain Heterogeneity with Microstructural Data from High Temperature Deformation
  18. Tailoring Beam Mechanics Towards Enhancing Detection of Hazardous Biological Species
  19. Strain Measurements Through Optimized Particle Tracking in Volumetric Images: Methodology and Error Assessment
  20. Comparison between Digital Fresnel Holography and Digital Image-Plane Holography: The Role of the Imaging Aperture
  21. Principle and Experimental Validation of a new Apparatus Allowing Large Deformation in Pure Bending: Application to thin Wire
  22. Dynamic Separation of Resistance Spot Welded Joints: Part I—Experiments
  23. Designing a Uniaxial Tension/Compression Test for Springback Analysis in High-Strength Steel Sheets
  24. A Hybrid Wavelet Based–Approach and Genetic Algorithm to Detect Damage in Beam-Like Structures without Baseline Data

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