Mechanical properties, indentation and dynamic yield stress of ceramic targets

✍ Scribed by Yu.V. Milman; S.I Chugunova

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 612 KB
• Volume: 23
• Category: Article
• ISSN: 0734-743X
• DOI: 10.1016/s0734-743x(99)00109-8

✦ Synopsis

The dynamic yield YD (which is determined usually in dynamic experiments from Hugoniot elastic limit) can be calculated for ceramic targets from static indentation experiments using Vickers hardness and plasticity characteristic 8,. The magnitude of Y, approximately equals to the static yield stress a, calculated by Marsh equation. The employment of a set of diamond indenters with different angles of sharpening makes possible to construct stress-strain curves for ceramic materials and to determine yield stress at different deformation degrees.