Numerical simulation of dynamic consolidation of a SiC fiber-reinforced aluminum composite

Journal Article · Tue Aug 15 04:00:00 EDT 1989 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.344355· OSTI ID:5846117

Williamson, R L; Wright, R N; Korth, G E; Rabin, B H

Dynamic consolidation of a SiC fiber-reinforced aluminum matrix composite resulting from the stress wave generated by an impacting stainless-steel plate has been simulated using a two-dimensional numerical model in which the aluminum and SiC are assumed to be infinite cylinders prior to consolidation. Impact velocities of 0.5, 0.75, and 1.0 km/s were considered in the simulations. For impact plate velocities greater than 0.5 km/s, bonding is predicted to occur between the aluminum cylinders by melting in the regions of greatest plastic flow. In the interstices that are filled by a SiC fiber there is less plastic flow and the maximum temperature is significantly reduced. Results of the simulation are compared with the microstructure of a composite formed using a stainless-steel impact plate with a velocity of 0.7 km/s to consolidate a close-packed array of aluminum wires which contained SiC fibers of the appropriate diameter to fill the interstices to approximate the geometry of the model. The predictions of the simulation with respect to the observed deformation and the location and extent of melting of the aluminum wires are in good agreement with the experiment.

• Research Organization: Idaho National Engineering Laboratory, EG G Idaho, Inc., P.O. Box 1625, Idaho Falls, Idaho 83415(US)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 5846117
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 66:4; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALUMINIUM
BONDING
CARBIDES
CARBON COMPOUNDS
COMPACTING
COMPOSITE MATERIALS
DYNAMICS
ELEMENTS
FABRICATION
FIBERS
IMPACT SHOCK
JOINING
MATERIALS
MECHANICS
MELTING
METALS
NUMERICAL SOLUTION
PHASE TRANSFORMATIONS
SILICON CARBIDES
SILICON COMPOUNDS
SIMULATION
STRESSES
TWO-DIMENSIONAL CALCULATIONS