Abstract
Short term sequenced creep compliance test procedures were used to characterize the aging of two polymeric composites (IM7/K3B, IM7/5260) at temperatures below the glass transition. The applicability of these procedures to account for both physical and chemical aging was discussed. Master curve data from these tests along with the associated time shift rate were used as input to a predictive methodology based upon linear viscoelasticity and the effective time theory. Long term compliance predictions were made to illustrate the differences between thermoset and thermoplastic composites and to demonstrate how time shifts can be used to help characterize the aging process. Results indicate acceleration of aging will be affected by test temperature, ply orientation and material system and that these parameters all play a role in determining the long term behavior.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2096-2105 |
| Number of pages | 10 |
| Journal | Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
| Volume | 4 |
| State | Published - Dec 1 1994 |
| Event | Proceedings of the 35th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Part 1 (of 5) - Hilton Head, SC, USA Duration: Apr 18 1994 → Apr 20 1994 |
ASJC Scopus subject areas
- Architecture
- Materials Science(all)
- Aerospace Engineering
- Mechanics of Materials
- Mechanical Engineering