Large-deflection analysis of cord composite plates. [Using Kirchhoff plate theory]
Cord composites, constructed by embedding cords in a rubber matrix, have been used in industry for many years. This type of composite is strong in extension in the cord direction but very flexible with regard to bending. Previous studies in predicting the elastic constants of wire cord composites treated the cords as solid cylindrical wires and neglected the mechanical properties of wire strand. Wire strand usually consists of a center wire surrounded by six helical outer wires. The mechanical properties of wire strand are taken into account here in determining the stiffnesses of the cord composites. Kirchhoff plate theory with large deflections is used to study a loaded thin cord composite plate by means of both the energy method and matched asymptotic method. Results indicate that, when the cord is nearly parallel to the edge of a rectangular plate, the extensional stiffness in the cord direction is much larger than any other stiffnesses of the plate and the membrane effect of the plate is much more important than the bending effect.
- Research Organization:
- Illinois Univ., Urbana, IL (United States)
- OSTI ID:
- 7018043
- Country of Publication:
- United States
- Language:
- English
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