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contributor authorAlex
contributor authorGreen
contributor authorKris
contributor authorZacny
contributor authorJuan
contributor authorPestana
contributor authorDennis
contributor authorLieu
contributor authorRobert
contributor authorMueller
date accessioned2017-05-08T21:34:00Z
date available2017-05-08T21:34:00Z
date copyrightJanuary 2013
date issued2013
identifier other%28asce%29as%2E1943-5525%2E0000216.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/56367
description abstractPercussive excavation is researched as a viable technology to reduce the shear strength of the dry lunar soil simulant JSC-1A. Experimental tests were conducted in a percussive and quasi-static test bed, which used a replica Surveyor scoop as the excavation tool. The effects of percussion, relative to measured excavation baseline draft forces, are presented in the context of six different variables. The test variables include percussive frequency, percussive impact energy, excavation speed, excavation depth, angle of attack, and relative soil density. It is concluded that percussion reduces the shear strength of dry JSC-1A by removing the effects of soil dilatancy from the internal friction angle along the shear failure boundary layer.
publisherAmerican Society of Civil Engineers
titleInvestigating the Effects of Percussion on Excavation Forces
typeJournal Paper
journal volume26
journal issue1
journal titleJournal of Aerospace Engineering
identifier doi10.1061/(ASCE)AS.1943-5525.0000216
treeJournal of Aerospace Engineering:;2013:;Volume ( 026 ):;issue: 001
contenttypeFulltext


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