| Issue |
DYMAT 2009
Volume 1, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
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|---|---|---|
| Page(s) | 479 - 484 | |
| Section | Experimental Techniques | |
| DOI | https://doi.org/10.1051/dymat/2009068 | |
| Published online | 15 September 2009 | |
DOI: 10.1051/dymat/2009068
Testing the impact tensile properties of ceramics with SHPB
L. Song1, L.M. Yang1 and F.L. Huang21 Mechanics and Materials Science Research Centre, Ningbo University, 315211 Ningbo, PR China
2 State Key Laboratory of Explosion Science and Technology, 100081 Beijing, PR China
Published online: 15 September 2009
Abstract
To determine the tensile stress-strain curves and strength of ceramics at high strain rates, a modified dynamic three-point bending experimental technique is proposed in this paper. Based on the traditional three-point bending testing method, the modification is to mount a strain gage on the central position of the tensile face of the specimen, which is used for directly measuring the tensile strain during the specimen being subjected to an impact load with a SHPB apparatus. A finite-element simulation is carried out to evaluate the test errors of this new technique. The dynamic stress-strain curves of a kind of alumina ceramic at the strain rates of 75 s−1, 250 s−1, 380 s−1 and 1300 s−1 are obtained by using this modified apparatus.
© EDP Sciences 2009