Abstract
Complete 3 D anisotropic degree of cure and temperature dependent thermal properties and viscoelastic constitutive relations are formulated to describe composites during curing in autoclaves. Sensitivity studies were undertaken to determine the influences of time step and mesh size on the convergence of the finite element analysis of temperature and degree of cure. Expressions for the probability of tunes to delaminate during cure under combined stresses are derived and delamination onset survival times of laminated composites in the autoclave during manufacture are investigated in detail. Specific experimental areas are identified where needed deterministic and stochastic data for thermal, viscoelastic and failure properties during manufacturing cycles are unavailable.
Original language | English (US) |
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Pages | 1-9 |
Number of pages | 9 |
DOIs | |
State | Published - 1996 |
Event | 37th AIAA/ASME/ASCE/AHS/ASC Structure, Structural Dynamics and Materials Conference, 1996 - Salt Lake City, United States Duration: Apr 15 1996 → Apr 17 1996 |
Other
Other | 37th AIAA/ASME/ASCE/AHS/ASC Structure, Structural Dynamics and Materials Conference, 1996 |
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Country/Territory | United States |
City | Salt Lake City |
Period | 4/15/96 → 4/17/96 |
Keywords
- Composite manufacturing
- Cure process
- Delamination onset
- Finite element analysis
- Interlaminar stresses
- Laminated omposites
- Polymer matrix
- Probability of failure
- Residual stresses
- Stochastic processes
- Viscoelastic composites
ASJC Scopus subject areas
- Civil and Structural Engineering
- Mechanics of Materials
- Architecture
- Building and Construction