Chapter 18. Elastic Property Determination of WC Spheres and Estimation of Compressive Loads and Impact Velocities that Initiate their Yielding and Cracking
- Lisa Prokurat,
- Andrew Wereszczak,
- Edgar Lara-Curzio
Published Online: 26 MAR 2008
DOI: 10.1002/9780470291368.ch18
Copyright © 2007 The American Ceramics Society
Book Title
Advances in Ceramic Armor II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 7
Additional Information
How to Cite
Wereszczak, A. A. (2008) Elastic Property Determination of WC Spheres and Estimation of Compressive Loads and Impact Velocities that Initiate their Yielding and Cracking, in Advances in Ceramic Armor II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 7 (eds L. Prokurat, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291368.ch18
Publication History
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 2006
Book Series:
ISBN Information
Print ISBN: 9780470080573
Online ISBN: 9780470291368
- Summary
- Chapter
- References
Keywords:
- resonant ultrasound spectroscopy;
- elastic constants;
- mechanical resonance;
- ultrasound;
- accurate diameter measurement
Summary
Resonant Ultrasound Spectroscopy (RUS) was used to determine the elastic constants E, G, and v of 6.35 mm diameter spheres of high purity WC (Roc500), WC-6%Co, and WC-12%Co. Two of the three elastic constants were independently determined using RUS; consequently, the determination of the third elastic constant proceeded without needing to assume a value for any one of the three. Secondly, 500g Vickers hardness was measured with each of the three compositions, and compressive loads and impact velocities to initiate yielding and cracking in the spheres were estimated from the combination of finite element analysis, the elastic properties measured from the RUS analysis, the measured hardnesses, and assumed tensile strengths for the WC compositions.