Volume 1, 2009DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||143 - 148|
|Published online||15 September 2009|
Dynamic punch testA. Gilat and J.D. Seidt
The Ohio State University, Dept of Mechanical Engineering, Columbus, OH 43210, USA
Published online: 15 September 2009
A dynamic punch test is introduced. The test is conducted by placing a punching device between the incident and transmitter bars of a split Hopkinson bar apparatus. The punch has a rounded end that penetrates into the specimen which is a thin round plate clamped around the circumference. The force of the punch and the relative motion between the punch and the specimen holder is determined from the waves recorded on split Hopkinson bars. Digital image correlation technique is used to verify the displacements determined from the waves. Results are shown from tests on specimens made of 2024-T351 aluminum. The measured force vs. relative displacement can be used for validation of proposed constitutive relations for plasticity and failure.
© EDP Sciences 2009