Simulation of composite material response under dynamic compressive loading [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 12 pages : digital, PDF file
Additional Creators: Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Realistic computer prediction of high-velocity impact and penetration events involving composite materials requires a knowledge of the material behavior under large compressive stresses at high rates of deformation. As an aid to the development of constitutive models for composites under these conditions, methods for numerical simulation of the material response at the microstructural level are being developed. At present, the study is confined to glass fiber/epoxy composites. The technique uses a numerical model of a representative sample of the microstructure with randomly distributed fibers. By subjecting the boundary of this numerical sample to prescribed loading histories, a statistical interpretation allows prediction of the global material response. Because the events at the microstructural scale involve locally large deformation, and because of the constantly changing picture with regard to contact between the fibers, the Eulerian code CTH is used for these calculations. Certain aspects of material failure can also be investigated using this approach. The method allows the mechanical behavior of composite materials to be studied with fewer assumptions about constituent behavior and morphology than typically required in analytical efforts.

Report Numbers

E 1.99:sand--93-1490c
E 1.99: conf-9306291--1
conf-9306291--1
sand--93-1490c

Subject(s)

Materials Science

Other Subject(s)

Note

Published through SciTech Connect.
12/31/1993.
"sand--93-1490c"
" conf-9306291--1"
"DE94005272"
"GB0103012"
International Union of Theoretical and Applied Mechanics (IUTAM) symposium on computational mechanics of materials,Providence, RI (United States),15-18 Jun 1993.
Taylor, P.A.; Silling, S.A.

Funding Information

AC04-94AL85000
AC04-76DP00789

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