Wave propagation in the split Hopkinson pressure bar

Journal Article · Fri Dec 31 23:00:00 EST 1982 · J. Eng. Mater. Technol.; (United States)

DOI:https://doi.org/10.1115/1.3225620· OSTI ID:5815844

Follansbee, P S; Frantz, C

Elastic wave propagation in the split Hopkinson pressure bar (SHPB) is discussed with an emphasis on the origin and nature of the oscillations that often trail the leading edge of the pressure wave. The authors show that in the conditions of the SHPB test the pressure bars vibrate in the fundamental mode and that elastic wave progapation can be fully described mathematically. Excellent agreement is found between experimental results and predictions of the mathematical treatment. This suggests that dispersion effects in the pressure bars can be removed from the strain gage records, which reduces the magnitude of the oscillations in the resulting stress strain curve. 12 references, 11 figures, 1 table.

• Research Organization: Los Alamos National Lab., NM
• OSTI ID: 5815844
• Journal Information: J. Eng. Mater. Technol.; (United States), Journal Name: J. Eng. Mater. Technol.; (United States) Vol. 105; ISSN JEMTA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
DEFORMATION
MATERIALS TESTING
NONDESTRUCTIVE TESTING
STRAINS
STRESS ANALYSIS
STRESSES
TESTING
WAVE PROPAGATION