Abstract
The micro-thermal stresses due to material property gradients at the fiber/matrix interface are predicted for a hexagonal array of fibers. A linear relationship is chosen to simulate the variation of both elastic modulus and coefficient of thermal expansion in an interphase region around the fibers. To solve the resulting governing field equations, a computational approach using the Boundary Fitted Coordinates Techniques(BFCS) is adopted. A parametric study is performed to assess the effects of interfacial properties and fiber spacing on the local thermal stress state. Results are presented for several typical composite systems. It is shown that modifying the mechanical properties in an interfacial zone around the fibers, as well as changing the fiber volume fraction can have a significant effect on the local thermal stress state.
Original language | English (US) |
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Pages (from-to) | 11-20 |
Number of pages | 10 |
Journal | American Society of Mechanical Engineers, Applied Mechanics Division, AMD |
Volume | 100 |
State | Published - 1989 |
Externally published | Yes |
Event | Mechanics of Composite Materials and Structures - La Jolla, CA, USA Duration: Jul 9 1989 → Jul 12 1989 |
ASJC Scopus subject areas
- Mechanical Engineering