[HTML][HTML] Recent progress on impact induced reaction mechanism of reactive alloys

Y Yang, C Wang, Y Meng, Y Ma, L Guo, Y He, Z Sun… - Defence …, 2023 - Elsevier
In recent years, in order to improve the destructive effectiveness of munitions, the use of new
types of destructive elements is an important way to improve destructive effectiveness. As a …

[HTML][HTML] Capturing rockfall kinematic and fragmentation parameters using high-speed camera system

A Prades-Valls, J Corominas, N Lantada, G Matas… - Engineering …, 2022 - Elsevier
This paper presents a procedure for tracking rockfall trajectories and extracting kinematic
parameters from both the impacts and the resultant fragments. A set of full scale rockfall …

Study on size and load rate effect of dynamic fragmentation and mechanical properties of marble sphere

R Zhao, M Tao, C Wu, X Li, S Wang - Engineering Failure Analysis, 2022 - Elsevier
Impact-induced fragmentation of rock blocks is a frequent phenomenon during rockfall,
mining, geotechnical engineering. In order to obtain the fragmentation characteristics of …

3D DEM simulations of the variability of rock mechanical behaviour based on random rock microcracks

Y Ye, C Li, Y Zeng, H Tang - International Journal of Rock Mechanics and …, 2023 - Elsevier
In this study, to investigate the variability of mechanical parameters of rock, a three-
dimensional (3D) discrete element model (DEM) with the consideration of random …

On the dynamic fragmentation of rock-like spheres: insights into fragment distribution and energy partition

DE Guccione, A Giacomini, K Thoeni, S Fityus… - Rock Mechanics and …, 2023 - Springer
Fragmentation of blocks upon impact is commonly observed during rockfall events.
Nevertheless, fragmentation is not properly taken into account in the design of protection …

An analytical model to predict the survival probability of irregular brittle rocks in rockfall under collinear impact

O Buzzi, DE Guccione - Rock Mechanics and Rock Engineering, 2023 - Springer
Highlights The experimental survival probability of one irregular shaped rock was
established via 105 drop tests using mortar replicas. The derivation and validation of an …

Numerical Study of Damage Accumulation in Brittle Spheres During Repeated Impacts and Development of a Conceptual Model for Rocks

O Buzzi, Y Ye, A Vidler - Rock Mechanics and Rock Engineering, 2024 - Springer
Rock fragmentation upon impact during a rockfall event is a very challenging phenomenon
to predict. To estimate the likelihood of breakage upon impact, one needs the survival …

[PDF][PDF] Practical considerations for the application of a survival probability model for rockfall

DE Guccione, O Buzzi, K Thoeni, A Giacomini… - Aust. Geomech …, 2022 - researchgate.net
Rockfall fragmentation is a common and very complex phenomenon that is still inadequately
understood and rarely modelled. When falling rock blocks break upon impact, their shape …

Sensitivity analysis of a new model to predict the survival probability of artificial rock blocks upon dynamic impact

DE Guccione, O Buzzi, K Thoeni, S Fityus, C Butcher… - ISRM EUROCK, 2021 - onepetro.org
Rockfall fragmentation is a very complex phenomenon that is still poorly understood and
modelled. Being able to adequately model fragmentation of impacting blocks, including …

Effect of Shape on the Survival Probability of Rock Replicas During Free Fall Tests

O Buzzi, DE Guccione - ISRM Congress, 2023 - onepetro.org
Fragmentation of rocks upon impact is a complex phenomenon that is not well understood.
The first question to answer to adequately model fragmentation is whether a falling block is …