Results 11 to 20 of about 113,132 (262)

Laser Driven Compression to Investigate Shock-Induced Melting of Metals

open access: yesMetals, 2014
High pressure shock compression induces a large temperature increase due to the dissipation within the shock front. Hence, a solid sample subjected to intense shock loading can melt, partially or fully, either on compression or upon release from the ...
Thibaut de Rességuier   +3 more
doaj   +1 more source

Ecological and biogeographical consequences of the fragmentation process [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2012
This paper will analyze the cause of, and ecological and biogeographical consequences of fragmentation process of habitats and ecosystems. Fragmentation process of the autochthonous habitats that without doubt leads also towards the break in their ...
Đurđić Snežana
doaj   +1 more source

Modeling Dynamic Fragmentation of Soil

open access: yesVadose Zone Journal, 2009
Soil fragmentation is a critical component in determining the structure of soil at any instant in time. Modeling and describing soil fragmentation consequently occupies an important niche in soil research. Recent attention has focused on a simple deterministic model of soil fragmentation that encompasses the notion of scale invariance and yields ...
Bird, N. R. A.   +3 more
openaire   +1 more source

Dynamic rock fragmentation: thresholds for long runout rock avalanches [PDF]

open access: yesFracture and Structural Integrity, 2014
The dynamic fragmentation of rock within rock avalanches is examined using the fragmentation concepts introduced by Grady and co-workers. The analyses use typical material values for weak chalk and limestone in order to determine theoretical strain rate ...
E.T. Bowman
doaj   +2 more sources

Dynamical aspects of fragmentation [PDF]

open access: yesAIP Conference Proceedings, 2007
Primera ...
Matias J. Ison, C. O. Dorso
openaire   +2 more sources

Dynamical scaling in fragmentation [PDF]

open access: yesJournal of Applied Physics, 1993
The dynamics of a fragmentation model is examined from the point of view of numerical simulation and rate equations. The model includes effects of temperature. The number n(s,t) of fragments of size s at time t is obtained and is found to obey the scaling form n(s,t)∼ s−τtwsγe−ρtf(s/tz) where f(x) is a crossover function satisfying f(x)≂1 for x≪1 and f(
Coutinho, K.   +2 more
openaire   +2 more sources

Combined Finite-Discrete Element Modelling of Dynamic Rock Fracture and Fragmentation during Mining Production Process by Blast

open access: yesShock and Vibration, 2021
A combined finite-discrete element method (FDEM) is proposed to model the dynamic fracture, fragmentation, and resultant muck-piling process during mining production by blast in underground mine.
Huaming An   +3 more
doaj   +1 more source

Rockfall fragmentation upon slope impact based on discrete element simulation

open access: yes地质科技通报
Objective The impact and fracture of rockfall are important reasons for the difficulty in predicting movement trajectories, and the geometric characteristics of slope bodies are key factors affecting the movement. Methods To study the crushing process of
Jian HUANG   +5 more
doaj   +1 more source

Investigation of three different cooling treatments on dynamic mechanical properties and fragmentation characteristics of granite subjected to thermal cycling

open access: yesUnderground Space, 2022
Underground thermal engineering such as geothermal exploitation usually involves the response of impact loads due to the drilling operation and blasting load.
Lifeng Fan, Han Li, Yan Xi
doaj   +1 more source

Investigation of dynamic fragmentation of laser shock-loaded tin at different phases with the integrated diagnostic techniques

open access: yesAIP Advances, 2019
We investigated the dynamic fragmentation of laser shock-loaded tin to gain insights on the underlying mechanism of this process. In the experiments, tin samples were shock-loaded by nanosecond laser over sequential pressures ranging from 7 GPa to 43 GPa.
Tao Xi   +8 more
doaj   +1 more source

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