Finite-element analysis on performance and shear stress of cemented tungsten carbide anvils used in the China-type cubic-anvil high-pressure apparatus

Stress distribution in cemented tungsten carbide (WC) anvils is of primary interest in high pressure research, but is very difficult to determine experimentally. We have performed finite-element simulations to study the performance and the shear stress distribution of WC anvils used in the China-typ...

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Bibliographic Details
Published in:High pressure research 2009-09, Vol.29 (3), p.457-465
Main Authors: Han, Qi-Gang, Jia, Xiao-Peng, Qin, Jie-Ming, Li, Rui, Zhang, Cong, Li, Zhan-Chang, Tian, Yu, Ma, Hongan
Format: Article
Language:English
Subjects:
finite-element method
shear stress
strength theory
WC anvil
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Summary:Stress distribution in cemented tungsten carbide (WC) anvils is of primary interest in high pressure research, but is very difficult to determine experimentally. We have performed finite-element simulations to study the performance and the shear stress distribution of WC anvils used in the China-type cubic-anvil high pressure apparatus (SPD-6×2000). Our results show that in order to avoid failure cracks in high-stress areas, the maximum shear stress should be lower than 3.17 GPa for the WC anvils (8% cobalt). The simulations have been verified by high-pressure experiments. Our method of analyzing stress distribution helps in evaluating the ability of WC anvils, and would aid in designing a new anvil to enhance performance.
ISSN:0895-7959
1477-2299
DOI:10.1080/08957950903170373