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Experimental study on fragmentation of explosive loaded

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[1510.00374] Study on the fragmentation of shells

Sep 03,2015 Experimental study on fragmentation of explosive loaded#0183;We present a detailed experimental and theoretical study on the fragmentation of closed thin shells of various materials,due to an excess load inside the system and impact with a hard wall.Characteristic fragmentation mechanisms are identified by means of a high speed camera and fragment shapes and mass distributions are evaluated.The analysis of the influence of pumice shape on its Pumice particles represent the basic ingredient of many large explosive eruptions and form as a result of magma fragmentation inside the conduit.At the onset of eruption,fragmental pumices are exStudy on the fragmentation of shells SpringerLinkFragmentation can be observed in nature and in everyday life on a wide range of length scales and for all kinds of technical applications.Most studies on dynamic failure focus on the behaviour of bulk systems in one,two and three dimensions under impact and explosive loading,showing universal power law behaviour of fragment size distribution.

Study on the fragmentation of shells - NASA/ADS

We present a detailed experimental and theoretical study on the fragmentation of closed thin shells of various materials,due to an excess load inside the system and impact with a hard wall.Characteristic fragmentation mechanisms are identified by means of a high speed camera and fragment shapes and mass distributions are evaluated.Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextA Study on Cut Blasting with Large Diameter Charges in To overcome the problems of poor cutting effects in hard rock roadways,a cut blasting technique with large diameter charges was developed; that is,the cut holes employ 50#x2009;mm diameter blast holes and 45#x2009;mm diameter explosive sticks,while the other holes adopt 42#x2009;mm diameter blast holes and 35#x2009;mm diameter explosive sticks.First,the effect of charge diameter on Some results are removed in response to a notice of local law requirement.For more information,please see here.

STUDY ON THE FRAGMENTATION OF SHELLS - CORE

Most studies on dynamic failure focus on the behaviour of bulk systems in one,two and tree dimensions under impact and explosive loading,showing universal power law behaviour of fragment size distribution,however,hardly any studies have been devoted to fragmentation of shells.Recent International Journal of Impact Engineering CiteScore 6.9 CiteScore 2019 6.9 CiteScore measures the average citations received per peer-reviewed document published in this title.CiteScore values are based on citation counts in a range of four years (e.g.2016-2019) to peer-reviewed documents (articles,reviews,conference papers,data papers and book chapters) published in the same four calendar years,divided by the number of Magma fragmentation in highly explosive basalticOct 21,2019 Experimental study on fragmentation of explosive loaded#0183;The authors declare that the experimental and analytical data supporting the findings of this study are available within the article and its Supplementary

Magma fragmentation in highly explosive basaltic

Oct 21,2019 Experimental study on fragmentation of explosive loaded#0183;The authors declare that the experimental and analytical data supporting the findings of this study are available within the article and its SupplementaryInternational Journal of Impact Engineering Vol 144 Experimental study on deformation and fracture of resistance-spot-welded (RSW) overlapping plates impacted at RSW joint by round-nosed bullet Bohan Ma,Chunlei Fan,Fragment size distribution statistics in dynamic This work investigates the geometric statistics method to characterize the size distribution of tin fragments produced in the laser shock-loaded dynamic fragmentation process.In the shock experiments,the ejection of the tin sample with etched V-shape groove in the free surface are collected by the soft recovery technique.Subsequently,the produced fragments are automatically detected with

Falk K.Wittel1,Ferenc Kun2,Bernd H.Kr Experimental study on fragmentation of explosive loaded#246;plin1 and Hans

mensions under impact and explosive loading,showing universal power law be-haviour of fragment size distribution.However,hardly any studies have been de-voted to fragmentation of shells.We present a detailed experimental and theoreti-cal study on the fragmentation of closed thin shells of various materials,due to anExplosive fragmentation of erupting magma NatureTHE magma responsible for explosive volcanic eruptions has both a volatile and an inert phase.Deep in the conduit of an active volcano,bubbles nucleate as the volatiles exsolve13.As the Explosive fragmentation of erupting magma NatureTHE magma responsible for explosive volcanic eruptions has both a volatile and an inert phase.Deep in the conduit of an active volcano,bubbles nucleate as the volatiles exsolve13.As the

Experimental study on the effectiveness of fiber sheet

In this study,three factors have been considered for experiments of shelled explosives in concrete targets,which are filling coefficient,length-to-diameter ratio,and depth of burial.Experimental study on fragmentation of explosive loaded To study the natural fragmentation of projectiles,the effects of the fragmentation resistance characteristic,grain size,and metallographic structure of the projectile material on the characteristic masses (scale parameter ) of the fragments were explored in this study.Thermal treatments were conducted on four types of shell steels to obtain eight materials with different macroscopic Experimental study of surface constraint effect on rock Experimental study of surface constraint effect on rock fragmentation by blasting April 2020 International Journal of Rock Mechanics and Mining Sciences 128:104278

Experimental study of surface constraint effect on rock

Apr 01,2020 Experimental study on fragmentation of explosive loaded#0183;The explosive RDX (research department explosive) with a critical diameter of 11.5 mm 1,30 was used in this study since blastholes were small and only a small amount of explosive could be loaded for safety consideration.The density of the explosive was 1.09 g/cm 3,the explosion heat 5430 kJ/kg,and the VOD (velocity of detonation) 8089 m/s..The explosive was wrapped up in aExperimental study of micro-spalling fragmentation from Oct 29,2015 Experimental study on fragmentation of explosive loaded#0183;In this paper,we conduct an experimental investigation of a Pb target shocked using high explosives through the use of an improved,non-radiographic diagnostic technique called an Asay window.In the case considered,the Pb sample is melted upon release at a shock-breakout pressure of about 38 GPa.By converting the measured velocity profile of an Asay window,the mass and density Experimental study of micro-spalling fragmentation from Oct 29,2015 Experimental study on fragmentation of explosive loaded#0183;In this paper,we conduct an experimental investigation of a Pb target shocked using high explosives through the use of an improved,non-radiographic diagnostic technique called an Asay window.In the case considered,the Pb sample is melted upon release at a shock-breakout pressure of about 38 GPa.By converting the measured velocity profile of an Asay window,the mass and density

Experimental and Numerical Research on Cylindrical Tubes

Cylindrical explosive loading has an important application in explosive working,researching on weapon damage,and explosive-driving load.This study uses experimental and numerical methods to study the response of long and thin tubes when subjected to cylindrical explosive loading.The flake-like charge and multipoint initiation technique were adopted to load cylindrical explosive waves.Experimental Study on the Blasting Performance of Water J.R.Brinkmann,An experimental study of the effects of shock and gas penetration in blasting, in Proceedings of the 3rd International Symposium on Rock Fragmentation by Blasting,pp.5566,Brisbane,Australia,August 1990.View at Google ScholarExperimental Study on Wing Crack Behaviours infragmentation is produced by the high initial earth stresses and explosive.The first significant experimental study devoted to the influence of static stress field on the wave and gas-generated fragmentation pattern was reported by Kutter and Fairhurst [1] in 1971.They found that the blast-induced

Experimental Study of Explosive Fragmentation of Metals

The authors describe the device,techniques and results of study of explosive fragmentation and dispersion of metallic shells after their melting under shockrelease wave loading.It was revealed that structures of dispersed and fragmented shells of melted metals (lead and indium) are largemesh foam structures similar to structures formed at extension of real (lowviscous) liquids.Experimental Study and Engineering Practice of Pressured Overburden strata movement in large space stope is the major reason that induces the appearance of strong mining pressure.Presplitting blasting for hard coal rocks is crucial for the prevention and control of strong pressure in stope.In this study,pressured water coupling blasting technique was proposed.The process and effect of blasting were analyzed by orthogonal test and field practice.Experimental Study and Engineering Practice of Pressured Overburden strata movement in large space stope is the major reason that induces the appearance of strong mining pressure.Presplitting blasting for hard coal rocks is crucial for the prevention and control of strong pressure in stope.In this study,pressured water coupling blasting technique was proposed.The process and effect of blasting were analyzed by orthogonal test and field practice.

Experimental Studies on Improved Plastic Bonded Explosives

Experimental Studies on Improved Plastic Bonded Explosives Materials (PBXs) for Controlled Fragmentation Warheads Conference Paper (PDF Available) in MATEC Web of Conferences 88:03001 Effects of U-notches on the dynamic fracture and An experimental study has been presented on the radial deformation of aluminium and copper cylinders of internal diameter 52 mm and wall thickness 17 mm,internally loaded with high explosives.Dynamic fracture and fragmentation of rock-like materials May 01,2020 Experimental study on fragmentation of explosive loaded#0183;In the meanwhile,the studies of 3-d problems focus on the situation where the blast-hole is normal to a free surface [12,22].When the blast-hole is parallel to the free surface,rock fracture and fragmentation still needs further experiments to clarify,especially fracture of the free surface under different explosion energy.

Deep-sea eruptions boosted by induced fuelcoolant

Jun 29,2020 Experimental study on fragmentation of explosive loaded#0183;Interactions between magma and water can drive explosive fragmentation eruptions of the type seen in the Havre volcanic eruption,New Zealand,inConduit flow experiments help constraining the regime of [1] It is currently impractical to measure what happens in a volcano during an explosive eruption,and up to now much of our knowledge depends on theoretical models.Here we show,by means of largescale experiments,that the regime of explosive events can be constrained on the basis of the characteristics of magma at the point of fragmentation and conduit geometry.CiteSeerX STUDY ON THE FRAGMENTATION OF SHELLSCiteSeerX - Document Details (Isaac Councill,Lee Giles,Pradeep Teregowda) Fragmentation,in other words the breaking of particulate material into smaller pieces can be observed in nature and in modern life on a wide range of length scales in all kinds of technical applications.Most studies on dynamic failure focus on the behaviour of bulk systems in one,two and tree dimensions under

Author Chuan Zhao,Shushan Wang,Cean Guo,Dongqi Liu,Feng MaPublish Year 2020Experimental study on fragmentation of explosive loaded

Experimental study on fragmentation of explosive loaded steel projectile.HighlightsTo study the natural fragmentation of projectiles,the effects of the fragmentation resistance characteristic,grain size,and metallographic structure of the projectile material on the characteristic masses (scale parameter ) of the fragments were explored in this study.Compared to the G(fragmentation Author Chuan Zhao,Shushan Wang,Cean Guo,Dongqi Liu,Feng MaPublish Year 2020Experimental study on fragmentation of explosive loaded Experimental study on fragmentation of explosive loaded steel projectile. To study the natural fragmentation of projectiles, An underwater fragmentation test was performed on the explosive projectiles,and the Weibull distribution was used to fit the test data to obtain the mass distribution control parameters of the materials in the A Study on Cut Blasting with Large Diameter Charges in To overcome the problems of poor cutting effects in hard rock roadways,a cut blasting technique with large diameter charges was developed; that is,the cut holes employ 50#x2009;mm diameter blast holes and 45#x2009;mm diameter explosive sticks,while the other holes adopt 42#x2009;mm diameter blast holes and 35#x2009;mm diameter explosive sticks.First,the effect of charge diameter on

12345NextExperimental study of surface constraint effect on rock

Experimental study of surface constraint effect on rock fragmentation by blasting April 2020 International Journal of Rock Mechanics and Mining Sciences 128:104278(PDF) Explosive Fragmentation of a Thin Ceramic TubeThis study experimentally examined the explosive fragmentation of thin ceramic tubes using pulsed power.A thin ceramic tube was threaded on a thin copper wire,and high voltage was applied to the (PDF) Explosive Fragmentation of a Thin Ceramic TubeThis study experimentally examined the explosive fragmentation of thin ceramic tubes using pulsed power.A thin ceramic tube was threaded on a thin copper wire,and high voltage was applied to the

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