A rheometer for measuring the material moduli for granular solids

Technical Report · Mon Jan 01 00:00:00 EST 1990

OSTI ID:5194817

Rajagopal, K R

In this quarterly report, we discuss the progress that has been made with regard to our research on an experimental method for characterizing the material properties of granular solids. We have proposed to build an orthogonal rheometer which consists of two disks rotating with the same angular speed about distinct axes. By measuring the forces and the torque acting on the top and bottom disks and correlating them with the theoretical expressions for the tractions and moment, we can characterize the properties of the material that is placed between the disks. The above described technique draws upon a method devised for measuring the properties of viscoelastic solids and fluids.

• Research Organization: Pittsburgh Univ., PA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-90PC90306
• OSTI ID: 5194817
• Report Number(s): DOE/PC/90306-T2; ON: DE92015470
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ELASTICITY
MEASURING METHODS
GRANULAR MATERIALS
RHEOLOGY
VISCOSITY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
PROGRESS REPORT
SOLIDS
TORQUE
DOCUMENT TYPES
MATERIALS
MECHANICAL PROPERTIES
TENSILE PROPERTIES
010600* - Coal
Lignite
& Peat- Properties & Composition