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Tuesday, July 14, 2020 | History

2 edition of Centrifuge modeling of projectile penetration in granular soils found in the catalog.

Centrifuge modeling of projectile penetration in granular soils

Teresa Ann Taylor

Centrifuge modeling of projectile penetration in granular soils

by Teresa Ann Taylor

  • 78 Want to read
  • 24 Currently reading

Published .
Written in English

    Subjects:
  • Soil mechanics.,
  • Projectiles -- Mathematical models.

  • Edition Notes

    Statementby Teresa Taylor.
    The Physical Object
    Paginationxiii, 157 leaves, bound :
    Number of Pages157
    ID Numbers
    Open LibraryOL16710843M

    A Cyclic Undrained Simple Shear Testing Method for Soils. Centrifuge Modeling for Projectile Penetration Studies. A Procedure for Determining Volumetric Shrinkage of an Unsaturated Soil. Calibration of Thermal Conductivity Sensors for Measuring Soil Suction. Studies with Centrifuge Vane and Penetrometer Apparatus in a Normal Gravity   Iskander, M. () Modeling with Transparent Soils, Visualizing soil structure interaction and multiphase flow, non intrusively, ISBN: (Hard Bound), e-ISBN (e-book), Springer-Verlag,

      5. Assessment of Strength and Deformation of Coarse Grained Soils by Means of Penetration Tests and Laboratory Tests on Undisturbed Samples O. Pallara, F. Froio, A. Rinolfi, D. Presti. 6. Strength Properties of Sand by Tilting Test, Box Shear Test and Plane Strain Compression Test Kimio Umetsu. 7. Micro X-Ray Ct At Spring-8 For Granular Mechanics Search term. Advanced

    Welcome to the main entrance of the Online Geotechnical Engineering Library. Our geotech library provides links to useful publications such as papers, books, manuals, theses, that ?terms[0]=61&page= The LDFE/RITSS method was validated by existing centrifuge test data. It was observed that, during spudcan penetration, the development of sand plug trapped beneath the spudcan played a crucial role in the bottom boundary effect. The boundary effect started earlier when the ratio of sand layer thickness to spudcan diameter was greater than ://


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Centrifuge modeling of projectile penetration in granular soils by Teresa Ann Taylor Download PDF EPUB FB2

Investigations of the projectile penetration phenomenon in granular soils have been impeded by the difficulty in adequately quantifying and characterizing soil targets, and by the inability to directly scale results of 1-g penetration tests to full-scale conditions.

The former is largely due to the failure to adequately prepare and quantify laboratory test samples, and the inherent limitations T/abstract. Results from centrifuge and 1‐g model tests of projectile penetration into granular soils are described. Solid spherical projectiles in four calibers were fired into uniform samples of dry sand at approximately m/s.

Comparison to full‐scale test results verified the suitability of the centrifuge testing technique for this type of ://(ASCE)()(). This paper describes the rationale for using centrifuge modeling for projectile penetration studies in granular soils and presents details of a projectile delivery system that has been used to conduct centrifuge penetration tests.

Included in the rationale is a dimensional analysis that indicates that self-weight induced stresses in the The study results showed that centrifuge modeling is an appropriate and powerful tool for investigating projectile penetration in granular soil.

Both centrifuge and 1-g data fit well withing bounds predicted by Young's equation. As in Young's full-scale tests, penetration depth is seen to be strongly dependent on the projectile mass-to-area :// This chapter is concerned with kinetic energy driven penetration into soils and soil-like granular materials.

Historically this is a topic of great interest to military and civil :// - centrifuge modeling of projectile penetration in granular soils (fragaszy,rj ; taylor,t ; su,w).

- etude en centrifugeuse de l'impact de gros blocs rocheux sur un remblai de protection (lepert,p ; corte,j-f). - centrifuge models of pile response in a blast and shock environment (felice,cw ; steedman,rs ; We developed a model of vertical penetration of granular soils verified by known experiments and dimensional analysis.

The experimental results showed nonmonotonic dependence between projectile deceleration and depth of penetration. Net resistant force was found to be a complicated function of variable deceleration and ://(ASCE)()(). Interest in penetration in granular media has been reinvigorated in the past few years with significant research expenditures on visualization of the fundamental physics of rapid penetration.

This book gathers important recent findings on rapid penetration into granular materials from prominent research groups in the United States and Europe View Amir-Ata Taghavi, Ph.D., P.E.’s profile on LinkedIn, the world's largest professional community.

Amir-Ata has 5 jobs listed on their profile. See the complete profile on LinkedIn and - Numerical and analytical modeling of projectile penetration into sand Phenomenology of rapid projectile penetration into granular soils this book is a one-stop source of theory and A physical modelling approach of studying projectile penetration in sand was developed to quantify the response of granular soils to non-intrusive, high-speed penetration using transparent soil   1.

Introduction. There has been a recent surge of interest in penetration of granular materials. Impact and penetration into granular media is important for many engineering applications, including subsurface investigations, planetary impact, and offshore foundations and anchors, among aspects of penetration mechanics have been addressed in recent :// The equation has the form where, and are positive constants and denotes the projectile penetration velocity at time.

Also, it was suggested that the centrifuge modeling is an appropriate and powerful tool for investigating the penetration of projectile into granular soil. For different soils, power relationships between projectile   Rapid Penetration into Granular Media: Visualizing the Fundamental Physics of Rapid Penetration introduces readers to the variety of methods developed to visualize, observe, and model the rapid penetration of natural and man-made projectiles into earth materials while providing seasoned practitioners with a standard reference that showcases the topic's most recent developments in   Centrifuge Modeling of Projectile Penetration in Granular Soils Fragasrz, Richard J.

and Tayfor, Teresa A. TYPE OF REPORT ]13b. TIME COVERED WWI DATEZT" • Rt •;PT(-e"r:M'nfyIT PAGE COUNT Final FROM 11fi07V TOO. D APRSUPPLEMENTARV NOTATION   Also, it was suggested that the centrifuge modeling is an appropriate and powerful tool for investigating the penetration of projectile into granular soil [5].

For different soils, power relationships between projectile penetration depth and projectile mass-to-area ratio were ://+the+Horizontal+Deviation+of+a+Spinning+Projectile.

A series of 80 penetration tests were performed to study the terminal depth of penetration into dry and saturated transparent synthetic sand. The transparent sand was made by matching the refractive index of granulated fused quartz with a pore fluid made of either sucrose or mineral oil.

Tests were conducted by shooting spherical projectiles at speeds of up to m/s into the transparent soil Centrifuge modeling of projectile penetration in granular soils zy, & Etude en centrifuge use de I 'impact de gros blocs rocheux sur un remblai de protection Centrifuge modeling of the impact of large blocks of rock on a protection earthfill (Summary) P Lepert & Zlatovic S., Ishihara K.: Normalized behavior of very loose non-plastic soils: effects of fabric.

Soils Found. 37(4 Centrifuge modeling of projectile penetration in granular soils. Washington Rad, N.S.; Tumay, M.T.: Effect of cementation on the cone penetration resistance of sand.

Paper presented at Numerical modeling of the anisotropic stress-strain behavior of granular soils based on the micromechanics theory Jung, Y.-H.

/ Chung, C.-K. / Kim, M.-M. | print version:CN/Mechanical-behaviour-for-granular. Modeling of interactions between granular materials and structural (or relatively rigid) objects is essential to investigating the introduction of manmade objects into granular media.

For example, current research being carried out at the Computer Laboratory for Granular Physics includes prediction of penetration depths of unexploded ordinance Rapid Penetration into Granular Media: Visualizing the Fundamental Physics of Rapid Penetration introduces readers to the variety of methods developed to visualize, observe, and model the rapid penetration of natural and man-made projectiles into earth materials while providing seasoned practitioners with a standard reference that showcases the topic's most recent developments in Modeling of Projectile Penetration using Transparent Soils.

Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoulpp. Omidvar, M., Iskander, M.

().