Dynamic Punch Test
Amos Gilat (Ohio State University), Jeremy Seidt (Ohio State University)
Eringen Medal Symposium in honor of G. Ravichandran
Tue 10:45 - 12:15
Salomon 001
A dynamic punch test is introduced. The test is conducted by placing a punch that has a rounded (or flat) nose on the end face of the incident bar of a compression split Hopkinson bar apparatus, and a thin round, flat, specimen plate restricted around the circumference on the end face of the transmitter bar. A compression wave that is generated in the incident bar causes the punch to penetrate the plate. The force applied by the punch is measured by the wave in the transmitter bar. The relative motion between the punch and the specimen mount is measured during the test using Digital Image Correlation (DIC). The relative displacement between the punch and the specimen can be unrestricted or restricted to a predesigned magnitude. Results are shown from tests on specimens made of 2024-T351 aluminum. The results are used for the development and validation of continuum ductile fracture models for high stain rate applications