A Numerical Model For Ice Crushing On Concave

2 rowssep 15 2015 results obtained from a series ofice crushingexperiments using25 cm diameter coneshaped

A numerical model for compressive coneshaped ice tests was developed usinglsdyna a crushable foam with failure criteria was adopted to simulate a spalling event evaluation of scalability up to 25 times larger size was performed the numerical model was verified from the viewpoint of global load and local load

Mar 01 2011 a numerical model for ice crushing has been constructed that takes into account the physical processes identified in many experimental studies these include the presence and evolution of highpressure and lowpressure zones the rapid removal of ice through melting and the transformation of relatively intact ice highpressure zone material to lowpressure pulverized ice through the creation

A numerical model for ice crushing has beenconstructedthat takes into account the physical processes identified in many experimental studies

The numerical model is shown to bevalidfor the flat indenter cases and the wedge and conicalshaped indenter cases the findings from this study show that the shape of the indenting surfaces does influence ice forces and pressure and that generally concave indentation surfaces lead to increases in pressure and force arising from ice crushing

May 15 2019 h kim c daley b colbourneanumerical modelforice crushingonconcavesurfaces ocean eng 106 2015 pp 289297 article download pdf view record in scopus google scholar lindseth 2013 s lindsethsplitting as a load releasing mechanism for a floater inicemaster thesis

Jun 15 2019 h kim c daley b colbourneanumerical modelforice crushingonconcavesurfaces ocean eng 106 2015 pp 289297 google scholar lindseth 2013 s lindsethsplitting as a load releasing mechanism for a floater inice norwegian university of science and technology 2013

This paper reviews progress during the past decade in understanding the brittle compressive failure ofice evidence is presented for the frictional crack slidingwing mechanism and for the role of localized fragmentation the ductiletobrittle transition is explained in terms of the suppression of crack growth and is modeled in terms of ashbyhallam wing crack mechanics and riedelrice

A numerical model for ice crushinghas been constructed that takes into account the physical processes identified in many experimental studies

The proposednumericalsimulationmodelwas extended to a 25 cm diameter coneshapedicespecimen and a number ofconcaveshaped indenter cases were validated view show abstract

The seaicebreaks withcrushingfailure mode and theiceload is obviously larger than that of conical structure a numerical model for ice crushing on concavesurfaces article jul 2015

A numerical model for ice crushing on concavesurfaces article jul 2015hyunwook kim claude gerard daley thenumerical icematerialmodelwas based on a crushable foammodel

A numerical model for ice crushing on concavesurfaces article jul 2015 this paper presentsa numerical modelof shipicewedge interaction to study the effect of ship speed on levelice

In this paper the breaking part is mainly focused on because it is critical tonumericalresistance evaluationfor icebreaking ship design to verify thenumericalcalculation the assessediceresistances are compared withice modeltest results

A numerical model for ice crushinghas been constructed that takes into account the physical processes identified in many experimental studies these include the presence and evolution of highpressure and lowpressure zones the rapid removal oficethrough melting and the transformation of relatively intacticehighpressure zone material

A numerical model for ice crushing on concavesurfaces otherice modelsfornumericalsimulation have a numerical model for ice crushinghas been constructed that takes into account the

In this paper the breaking part is mainly focused on because it is critical tonumericalresistance evaluationfor icebreaking ship design to verify thenumericalcalculation the assessediceresistances are compared withice modeltest results

The objective of this master thesis was to develop and implement algorithms ina numericaltool capable of simulating the process of ship hull breaking through pressureiceridge the tool is based on the idea to implement discrete element method dem and corresponding code developed at hamburg shipmodelbasin hsva for simulation ofice

This paper presents amodelof dynamiciceforces on vertical offshore structures themodelconcerns a loading scenario where a competenticesheet is drifting andcrushingagainst the structure full scale data obtained on two offshore structures were used in the derivation of a method that applies both to narrow and wide structures

Mar 12 2010 the hardest conditionfor iceformation are at altitudes between 10000 and 15000 ft and at temperature between 0 c and 15 c because they are particularly suitablefor iceformation in this paper an antiicing system based on hot air impinging jets on internal wing surface is analyzed in order to check the efficiency of the system

We presentnumericalresults of the mean flow and turbulence characteristics in the near field of a turbulent wall jet issuing from a sluice gate onto aconcaverough wall which had been experimentally investigated by albayrak et al j fluid mech 606 27 2008 at the reynolds number of 33500 and the froude number of 1014 based on the jet velocity and the sluice gate opening height

In order to explore the mechanism of droplet impact on a sphericalconcavesurfacea numerical modelusing the coupled level set and volume of fluid method was developed the mechanism of droplet impact and breakup during spreading was obtained the impact characteristics were closely related to impact velocity droplet impact on a sphericalconcavesurface showed a smaller spread factor

Citeseerx document details isaac councill lee giles pradeep teregowda this paper introducesa numericalmethod for solvingconcavecontinuous statedynamic programmingproblems which is based on a pair of polyhedral approximations ofconcavefunctions the method is globally convergent and produces computable upper and lower bounds on the value function which can in theory be made

May 17 2012numericalsimulations for plates undericeimpact based on a concrete constitutiveice model international journal of impact engineering vol 143 impact of acrushing iceparticle onto a dry solid wall 8 november 2015 proceedings of the royal society a mathematical physical and engineering sciences vol 471 no 2183 a survey of

Manual ofnumericalmethods in concrete aims to present a unified approach for the available mathematicalmodelsof concrete linking them to finite element analysis and to computer programs in which special provisions are made for concrete plasticity cracking andcrushingwith and without concrete aggregate interlocking creep temperature and shrinkage formulations are included and

Therefore the new proposed protected wall is based on these natural factsnumericalanalysis is performed to simulate the effect of the explosion on the new proposed and traditional configuration of a concrete barrier wall using finiteelement software autodyn3d autodyn 2005the finiteelementmodelis validated by available published experimental tests hajek et al 2016

2009 evaluation ofturbulence models in the predictionof heat transfer due to slot jet impingement on plane andconcavesurfacesnumericalheat transfer part b