Predicting Performance of Rapid Ground Penetrators on the Moon and Mars

Chua, Koon Meng; Johnson, Stewart W.; Galloway, Rod

doi:10.1061/40479(204)88

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Other Mechanical Properties1

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“…Several methods for determination of dynamic penetration resistance including closed form solutions by Halajian and Reichman (1969) and more recent finite element analysis by Chua, Johnson, and Galloway, (2000) will be used. Effects of Mars gravity and low atmospheric pressure on dynamic penetration resistance will be taken into account (Perko and Nelson, 2000).…”

Section: Other Mechanical Propertiesmentioning

confidence: 99%

Mars Global Surveyor Soil Mechanics Data Analysis

Perko¹,

Nelson²

2002

Space 2002 and Robotics 2002

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An investigation is in progress to evaluate the bearing capacity, trafficability, and shear strength of Martian regolith by analysis of Mars Global Surveyor (MGS) photographs and laser altimeter (MOLA) measurements. Types of analysis include computer modeling of landslides, natural slope stability calculations, angle of repose measurements, depth of boulder tracks, and height of vertical slopes. Ongoing analysis of soil mechanics data is necessary to better define the design parameters needed for future landing site selection and to engineer landers, rovers, sampling devices, and other equipment for interaction with the Martian surface during future exploratory missions. The thrust of the current investigation is the evaluation of high priority landing sites for the Mars 2003 twin MER mission.

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Section: Other Mechanical Propertiesmentioning

confidence: 99%