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Flow stress of high density polyethylene and nylon 66 at high rates of strain
Author(s) -
Ahmad S. H.
Publication year - 1992
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990280409
Subject(s) - high density polyethylene , materials science , polyethylene , composite material , strain (injury) , strain rate , stress (linguistics) , nylon 66 , polymer , split hopkinson pressure bar , flow (mathematics) , bar (unit) , volumetric flow rate , low density polyethylene , mechanics , linguistics , philosophy , polyamide , physics , medicine , meteorology
Measurement of the flow stress of high density polyethylene (HDPE) and nylon 66 at strain rates of 10 3 s −1 using a split Hopkinson pressure bar technique is discussed. The flow stress at a strain of 10% has been determined for both polymers at 20°C. The intrinsic errors involved in this technique are briefly reviewed. The results indicate that the flow stress of HDPE and nylon 66 were 50MPa and 150MPa, respectively, at strain rates of about 10 3 s −1 .