Comparison between results of dynamic static moduli of

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The Relation between Static Youngs Modulus and Dynamic

Jun 07,2018 Comparison between results of dynamic static moduli of#0183;Results are used to further investigate and compare the controlling mechanisms and trends in changes of dynamic bulk modulus and static Youngs modulus of the sand layer.The static Youngs modulus depends on the stress history and increases significantly for over-consolidated samples,while the dynamic bulk modulus is more related to the Static and dynamic moduli of a weak sandstoneStatic and Skip to Main ContentStatic and dynamic moduli of a weak sandstoneStatic and Skip to Main Content

Static and dynamic elastic properties,the cause of the

Static and dynamic elastic properties,the cause of the difference and conversion methods case study In this study the characteristics of elastic parameters of the lower Paleozoic shale formation is presented.Dynamic elastic properties are calculated based on available seismic data calibrated with elastic properties obtained from well logging.Static Analysis vs Dynamic Analysis VeracodeDec 03,2013 Comparison between results of dynamic static moduli of#0183;Static analysis can also unearth errors that would not emerge in a dynamic test.Dynamic analysis,on the other hand,is capable of exposing a subtle flaw or vulnerability too complicated for static analysis alone to reveal.A dynamic test,however,will only find defects in the part of the code that is actually executed.Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextComparison of Dynamic and Static BackcalculationThe major objective of this paper is to show the difference in backcalculated moduli between dynamic and static analyses using falling weight deflectometer (FWD) data.A dynamic backcalculation program that can closely simulate the FWD impulse load and perform analysis for a three-layer pavement has been developed.

Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextComparison between results of dynamic static moduli of

May 17,2019 Comparison between results of dynamic static moduli of#0183;(2013).Comparison between results of dynamic static moduli of soil determined by different methods.HBRC Journal Vol.9,No.2,pp.144-149.Some results are removed in response to a notice of local law requirement.For more information,please see here.STUDY OF THE RELATION BETWEEN THE STATIC ANDThe calculated values of dynamic moduli are also in-troduced in Table 1.RESULTS AND DISCUSSION The differences between the values of both moduli are influenced with different conditions under which the static and dynamic tests are performed.The values of applied strength in static experiments are of several tents of MPa,

Relationships between Dynamic Elastic Moduli in Shale

Nov 17,2020 Comparison between results of dynamic static moduli of#0183;Empirical relations can be used to convert dynamic to static moduli but care must be taken to consider anisotropic and pressure effects when doing so .Deviations of these moduli from expectations,as evidenced on sonic compressional-wave and shear-wave sonic logs,may provide useful lithologic insights in formation evaluation [ 8 ,9 ,10 ].Relations between static and dynamic moduli ofdifference between static and dynamic moduli; however,it depends on the actual static deformation rate and the fre-quency of the elastic waves applied.If the static and dynamic strain rates are equal,strain rate can be eliminated as a cause for difference between static and dynamic moduli.This is theROCK PHYSICS BASICS - Stanford EarthThe static and dynamic moduli of the same rock may significantly differ from each other.The main reason is likely to be the difference in the deformation (strain) amplitude between the dynamic and static experiments.In the dynamic wave propagation experiment the strain is about 10-7 while static strain may reach 10-2. Stress Axial Strain

RESEARCH NOTE Differences between static and

tic moduli are divided into static and dynamic moduli.The pro-posed empirical relations show that values of static moduli appear to be in general 5 to 10 per cent lower than those of dynamic moduli.The scatter among the data is very large and in some cases values obtained from staticRESEARCH NOTE Differences between static andtic moduli are divided into static and dynamic moduli.The pro-posed empirical relations show that values of static moduli appear to be in general 5 to 10 per cent lower than those of dynamic moduli.The scatter among the data is very large and in some cases values obtained from staticPeople also askWhat is the relationship between dynamic and static moduli?What is the relationship between dynamic and static moduli?Previous studies on relation between the dynamic and static moduli are often based on the tri-axial testing of dry samples.The tri-axial testing may introduced stress induced anisotropy effect that interfere study of the relation between the dynamic and static moduli.Comparison of dynamic and static bulk moduli of reservoir

Investigation of the relationship between dynamic and

The results show that there is a good correlation between static and dynamic elasticity modulus,rigidity modulus and bulk modulus.Regarding the relationships between static and dynamic modulus of elasticity,the best correlation found to be nonlinear logarithmic and power regression with the value ofExperimental Investigation on Static and Dynamic Bulk In conjunction with published data of other porous sandstones (Berea,Navajo and Weber sandstones),our results reveal that the ratio between dynamic and static bulk moduli (Kd/Ks) reduces rapidly from about 1.5 2.0 at ambient pressure to about 1.1 at high pressure under dry conditions and from about 2.0 4.0 to about 1.5 under water Dynamic and static moduli - Cheng - 1981 - Geophysical Static and dynamic bulk moduli (K s and K d) are measured as continuous functions of pressure from zero to 23 kilobars for two sandstones,a tuff,limestone,granite,and oil shale.Results for the sandstones and granite are in good agreement with previously reported data with K s /K d varying from about 0.5 at atmospheric pressure to close to unity at pressures 2 kilobars and above.

Dynamic and static measurements of small strain moduli of

Consequently,the dynamic moduli of denser specimens were larger than the static moduli by about 20 %,while the difference between the dynamic and static moduli of the looser one became as larger as 60 %.Figure 13 Comparison between P wave and S wave measurements .Figure 14 Time-history data from P wave measurement in the test AC80Differences between static and dynamic elastic moduli of a Even in the data found in literature (cf.Eissa Kazi 1988) the difference between static and dynamic moduli in brittle rocks is mostly comprised within 10 per cent,which is comparable with the 10 per cent discrepancy between different measurement methods shown here and with the common scatter between different samples.Indeed,in such cases Deformation of Granular Aggregates Static and Dynamic Dec 27,2019 Comparison between results of dynamic static moduli of#0183;However,the dynamic versus static moduli behavior depends not only on the stress magnitude but also on the loading conditions (hydrostatic versus uniaxial) and stress path,as shown in Holt et al..These authors point out that local shear sliding may be responsible for the observed difference between the two types of moduli.

DIFFERENCE IN ESTIMATED LAYER MODULI FROM

erroneous results.It seems that this discrepancy is greatly caused by the difference between the actual phenomenon and the analysis model in addition to numerical instability.A back-calculation method is composed of forward and backward analyses.Axi -symmetric analysis of multi-layered elastic systems called AAMES (5) is implemented in staticCorrelation between dynamic and static bulk moduli of We studied the continuous evolution of static and dynamic bulk moduli of a porous sandstone (Bentheim sandstone) with isotropic stress under different hydromechanical conditions.The static bulk moduli were achieved from the analysis of the stress-volumetric strain curve while dynamic bulk moduli were derived from the changes in ultrasonic P- and S-wave velocities along different traces which Correlation between dynamic and static bulk moduli of We studied the continuous evolution of static and dynamic bulk moduli of a porous sandstone (Bentheim sandstone) with isotropic stress under different hydromechanical conditions.The static bulk moduli were achieved from the analysis of the stress-volumetric strain curve while dynamic bulk moduli were derived from the changes in ultrasonic P- and S-wave velocities along different traces which

Comparison of dynamic and static bulk moduli of

the difference between static and dynamic elasticity and is dominant for rocks with high crack density (Blake and Faulkner,2016).In this study,we will introduce a new methodology to study the relationship between dynamic and static bulk moduli of porous rocks under hydrostatic stress.Experiment setComparison of Youngs Moduli of Engineered Stones Using This work reports the results of Youngs modulus of elasticity obtained for 3 types of engineered stones.Using parallelepiped specimens with dimensions 150 30 20 mm3,Youngs modulus is determined by different methods static and dynamic.Via quasi-static deformation tests - uniaxial tension,- uniaxial compression,and,- pure bending (i.e.symmetrical four-point bending),determination Comparison of Dynamic and Static BackcalculationThe major objective of this paper is to show the difference in backcalculated moduli between dynamic and static analyses using falling weight deflectometer (FWD) data.A dynamic backcalculation program that can closely simulate the FWD impulse load and perform analysis for a three-layer pavement has been developed.

Comparison between results of dynamic static moduli of

Comparison between results of dynamic static moduli of soil determined by different methodsComparison between results of dynamic static moduli of Comparison between results of dynamic static moduli of soil determined by different methodsComparison between results of dynamic static moduli of Comparison between results of dynamic static moduli of soil determined by different methods

Comparison between results of dynamic static moduli of

Aug 01,2013 Comparison between results of dynamic static moduli of#0183;A comprehensive comparison was established between the results of Young and shear moduli determined from pressure-meter,cross-hole and S.P.T.It was observed that the values of E S and G determined via pressure-meter are much less than those ofCited by 14Publish Year 2013Author A.H.Hammam,M.EliwaComparison between results of dynamic static moduli of May 17,2019 Comparison between results of dynamic static moduli of#0183;(2013).Comparison between results of dynamic static moduli of soil determined by different methods.HBRC Journal Vol.9,No.2,pp.144-149.Cited by 14Publish Year 2013Author A.H.Hammam,M.EliwaComparison between results of dynamic static moduli of Comparison between results of dynamic static moduli of soil determined by different methods.pdf Available via license CC BY-NC-ND 4.0 Content may be subject to copyright.

Cited by 14Publish Year 2013Author A.H.Hammam,M.EliwaComparison between results of dynamic static moduli of

Comparison between results of dynamic static moduli of soil determined by different methods Author links open overlay panel A.H.Hammam a M.Eliwa b Show moreAuthor A.H.Hammam and M.EliwaComparison of Dynamic and Static BackcalculationThe major objective of this paper is to show the difference in backcalculated moduli between dynamic and static analyses using falling weight deflectometer (FWD) data.A dynamic backcalculation program that can closely simulate the FWD impulse load and perform analysis for a three-layer pavement has been developed.A comparative study of the stress-dependence of2.Dynamic and static bulk moduli .Figure 3.Dynamic and static bulk moduli (i.e.,K dyn and K stat) as a function of the mean stress ( mean) in the hydrostatic load-unload for three samples.Figure 3 shows the evolutions of dynamic and static bulk moduli with pressure load and unload.Both dynamic and static moduli increase with pressure load.

A comparative study of the anisotropic dynamic and

granite samples,dynamic moduli were twice the static moduli at 0 MPa and did not become approximately equal until confining pressures of 300 MPa were reached.Similar results were obtained on sandstone,limestone oil shale,and biotite schist samples by Cheng and Johnston (1981) and King (1983).Wong et al.(2008) observe that,at 6 MPa A Correlation Between Dynamic and Static Pile Load3- Dynamic and Static Testing Results Three pile dynamic tests were carried out at Basrah Water Towers Ground Reservoirs- Site 3.The aim of the dynamic testing was to evaluate pile capacity and measure settlement under applied load and compare that with the static load test results.The field tests were conducted in 2007. results for this questionWhat is the difference between static and dynamic loading?What is the difference between static and dynamic loading?The difference between static and dynamic loading is that the second induces very small shear strain less than the elastic strain of 0.001%,while shear strains for static loading of foundations are generally in the range of 0.10.01% [2].Several studies have shown that the shear modulus decreases dramatically with increasing shear strain.Comparison between results of dynamic static moduli of soil

results for this questionWhat is dynamic shear modulus?What is dynamic shear modulus?The dynamic shear modulus Gmax and Poissons Ratio ( ) could be estimated directly through relations with shear wave velocity.Three boreholes at three locations were prepared during drilling for carrying out pressure-meter tests every 5.0 m from ground surface down to 60.0 m.Comparison between results of dynamic static moduli of soil results for this questionFeedbackComparison between results of dynamic static moduli

FULL LENGTH ARTICLE Comparison between results of dynamic static moduli of soil determined by dierent methods A.H.Hammam a,*,M.Eliwa b a Housing and Building National Research Center,Cairo,Egypt b Al-Jazzar Consulting Engineers,Jeddah,Saudi Arabia Received 28 November 2012; accepted 17 December 2012

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