TY - GEN
T1 - Compaction wave characteristics of polymeric foams under dynamic loading
AU - Ravindran, Suraj
AU - Koohbor, Behrad
AU - Malchow, Peter
AU - Kidane, Addis
N1 - Publisher Copyright:
© 2018, The Society for Experimental Mechanics, Inc.
PY - 2018
Y1 - 2018
N2 - The continuum scale shock wave theory has been extensively used to characterize the compaction wave propagation in polymeric foams. However, experimental full-field measurements are scarce to validate such shock wave models. In this study, dynamic experiments with the help of ultra-high speed imaging in conjunction with digital image correlation (DIC) to characterize the compaction wave propagation in polymeric foams. A direct impact is applied on a polymer foam sample using a Hopkinson bar apparatus. The experiment is conducted by shooting a projectile directly at the specimen at an impact velocity of 90 m/s. Typical characteristics of the compaction wave such as compaction wave velocity, compaction wave profile, full-field particle velocities are obtained from the DIC measurements. Furthermore, using a non-parametric method, inertia stress and hence the full-field axial stress is calculated across the compaction wave.
AB - The continuum scale shock wave theory has been extensively used to characterize the compaction wave propagation in polymeric foams. However, experimental full-field measurements are scarce to validate such shock wave models. In this study, dynamic experiments with the help of ultra-high speed imaging in conjunction with digital image correlation (DIC) to characterize the compaction wave propagation in polymeric foams. A direct impact is applied on a polymer foam sample using a Hopkinson bar apparatus. The experiment is conducted by shooting a projectile directly at the specimen at an impact velocity of 90 m/s. Typical characteristics of the compaction wave such as compaction wave velocity, compaction wave profile, full-field particle velocities are obtained from the DIC measurements. Furthermore, using a non-parametric method, inertia stress and hence the full-field axial stress is calculated across the compaction wave.
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U2 - 10.1007/978-3-319-62956-8_29
DO - 10.1007/978-3-319-62956-8_29
M3 - Conference contribution
AN - SCOPUS:85033486708
SN - 9783319629551
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 175
EP - 180
BT - Dynamic Behavior of Materials - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics
A2 - Lamberson, Leslie
A2 - Mates, Steven
A2 - Kimberley, Jamie
PB - Springer New York LLC
T2 - Annual Conference and Exposition on Experimental and Applied Mechanics, 2017
Y2 - 12 June 2017 through 15 June 2017
ER -