Numerical Analysis of Cyclic Impact Damage Evolution of Rock Materials under Confining Pressure
نویسندگان
چکیده
To study the effect of cyclic impacts and confining pressure on damage evolution rock materials, numerical simulations impact tests materials under were carried out by LS-DYNA using dynamic relaxation full restart analysis. The static was applied relaxation, realized As crack generation propagation result in failure elements finite element model, variable defined density method characterized volume reduction. Numerical simulation indicates that both amplitude incident stress waves significantly affect materials. High lead to severe damage, while large results minor damage. Under pressure, is alleviated due constraint propagation. number before macroscopic fracture increases as decreases when increases. cumulative progressively with impacts, exhibits three distinct stages: rapid rising, steady development, sharp rising.
منابع مشابه
Technical Note On numerical analysis of damage evolution in cyclic elastic–plastic crack growth problems
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app13158822