TY - GEN
T1 - Measurement of the dynamic fracture toughness of alumina ceramic
AU - Chen, Pengwan
AU - Chen, Jingjing
AU - Guo, Baoqiao
AU - Liu, Haibo
N1 - Publisher Copyright:
© The Society for Experimental Mechanics, Inc. 2016.
PY - 2016
Y1 - 2016
N2 - In this study, the dynamic fracture toughness of the alumina ceramic at various loading rates was measured by using three test methods. A split Hopkinson pressure bar was used to apply dynamic loading. The three-point bending (TPB) test with a pre-crack and semi-circular bending (SCB) test with a pre-crack, and the flattened Brazilian disc (FBD) test without a pre-crack were used to measure the dynamic fracture toughness of alumina ceramic. The dynamic fracture toughness of alumina ceramic obtained by the three methods were compared and analyzed. The results by the three methods show a good consistency. The dynamic fracture toughness of alumina ceramic exhibits an obvious rate dependence upon the loading rate. Considering easy preparation of FBD specimens without fabricating a pre-crack, FBD test is recommended as an alternative method for measuring the dynamic fracture toughness of brittle materials.
AB - In this study, the dynamic fracture toughness of the alumina ceramic at various loading rates was measured by using three test methods. A split Hopkinson pressure bar was used to apply dynamic loading. The three-point bending (TPB) test with a pre-crack and semi-circular bending (SCB) test with a pre-crack, and the flattened Brazilian disc (FBD) test without a pre-crack were used to measure the dynamic fracture toughness of alumina ceramic. The dynamic fracture toughness of alumina ceramic obtained by the three methods were compared and analyzed. The results by the three methods show a good consistency. The dynamic fracture toughness of alumina ceramic exhibits an obvious rate dependence upon the loading rate. Considering easy preparation of FBD specimens without fabricating a pre-crack, FBD test is recommended as an alternative method for measuring the dynamic fracture toughness of brittle materials.
KW - Alumina ceramic
KW - Dynamic fracture toughness
KW - Flattened Brazilian disc test
KW - Semi-circular bending test
KW - Three-point bending test
UR - http://www.scopus.com/inward/record.url?scp=84951928770&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-22452-7_6
DO - 10.1007/978-3-319-22452-7_6
M3 - Conference contribution
AN - SCOPUS:84951928770
SN - 9783319224510
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 33
EP - 38
BT - Dynamic Behavior of Materials - Proceedings of the 2015 Annual Conference on Experimental and Applied Mechanics
A2 - Kimberley, Jamie
A2 - Casem, Daniel
A2 - Song, Bo
A2 - Lamberson, Leslie
PB - Springer New York LLC
T2 - Annual Conference and Exposition on Experimental and Applied Mechanics, 2015
Y2 - 8 June 2015 through 11 June 2015
ER -