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Gravity Flow of Powder in a Lunar Environment. 2. Analysis of Flow Initiation.


PB205504

Publication Date 1971
Personal Author Pariseau, W. G.
Page Count 26
Abstract A small displacement-small strain finite element technique utilizing the constant strain triangle and incremental constitutive equations for elastic-plastic media that are nonhardening and obey a Coulomb yield condition has been applied to the analysis of gravity flow initiation in a V-shaped hopper containing a powder under lunar environmental conditions. Three methods of loading were examined. (Author)
Keywords
  • Soil properties
  • Lunar dust
  • Lunar environment
  • Open channel flow
  • Soil analysis
  • Soil mechanics
  • Mathematical models
  • Strains
  • Flow stress
  • Experimental design
  • Finite element analysis
Source Agency
  • Invalid Source Agency Code
NTIS Subject Category
  • 54A - Astrogeology
Corporate Authors BUREAU OF Mines, Washington, D.C.
Supplemental Notes See also PB-203 654.
Document Type Technical Report
Title Note Rept. of Investigations.
NTIS Issue Number 197204
Gravity Flow of Powder in a Lunar Environment. 2. Analysis of Flow Initiation.
Gravity Flow of Powder in a Lunar Environment. 2. Analysis of Flow Initiation.
PB205504

  • Soil properties
  • Lunar dust
  • Lunar environment
  • Open channel flow
  • Soil analysis
  • Soil mechanics
  • Mathematical models
  • Strains
  • Flow stress
  • Experimental design
  • Finite element analysis
  • Invalid Source Agency Code
  • 54A - Astrogeology
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