Mechanical characterization of soft materials using high speed photography and split hopkinson pressure bar technique
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High-speed photography in conjunction with the viscoelastic Split Hopkinson Pressure Bar (SHPB) technique was used to study soft material behavior under dynamic loading conditions. The real-time strains recorded using high speed photography were also used for validating the existing viscoelastic SHPB model. Polyurethane, sculpturing clay, sorbothane and bologna were tested as examples of soft materials. The dynamic compressive strength of clay increased by 4 orders of magnitude compared to the static compressive strength. The dynamic strength of sorbothane increased by 3 orders of magnitude compared to the manufacturer specified static values. Only dynamic experiments, between strain rates of 2700 and 3700/sec, were performed on bologna. All the four materials showed very high strain-rate dependence. The tested materials showed similar stress-strain plots. Clay, Sorbothane and Bologna were very compliant up to 30 to 35% strains followed by a stiffer region where the stresses increased rapidly to the maximum values. The specimens were in stress equilibrium for significant time durations and specimen peak stresses where achieved during this period.
- S. J. BELL, Structural Materials Center Report 325–331, DRA Holton Health, UK. (1996).
- G. J. COOPER, Journal of Biomechanics 24(5) (1991) 273.
- H. KOLSKY, “StressWaves in Solids” (Dover Publications, New York, 1963).
- E. DAVIES and S. C. HUNTER, Journal of Mechanics and Physics of Solids 11(1963) 155.
- G. T. GRAY and W. R. BLUMENTHAL, 2000, in “ASM Handbook, Vol. 8: Mechanical Testing and Evaluation” (ASM International, 2000) p. 488.
- G. T. GRAY, W. R. BLUMENTHAL, C. P. TRUJILLO and R. W. CARPENTER, Journal De Physique IV, France, Colloq. C3 7 (1997) 523.
- M. J. FORRESTAL, W. CHEN and B. ZHANG, Experimental Mechanics 39(2) (1999).
- L. WANG, K. LABIBES, Z. AZARI and G. PLUVINAGE, International Journal of Impact Mechanics 15 (1994) 669.
- H. ZHAO, G. GARY and J. R. KLEPACZKO, ibid. 19 (1997) 319.
- O. SAWAS, N. S. BRAR and R. A. BROCKMAN, Experimental Mechanics 38(2) (1998).
- C. BACON, ibid. 38(4) (1998).
- W. L. FOURNEY, private communication.
- K. F. GRAFF, “Wave Motion in Elastic Solids” (Dover Publications, New York, 1975).
- J. WILSON, Master's Thesis, University of Rhode Island, Kingston, RI, 2000.
- Standard Test Method for Unconfined Compressive Strength of Cohesive Soil, American Society for Testing and Materials (ASTM) D695, 1996.
- Y. C. FUNG, “Biomechanics Mechanical Properties of Living Tissues” (Springer-Verlag, New York, 1984).
- K. T. RAMESH and S. NARSIMHAN, International Journal of Solids and Structures 33 (1996) 3723.
- Mechanical characterization of soft materials using high speed photography and split hopkinson pressure bar technique
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Volume 37, Issue 5 , pp 1005-1017
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