Abstract
In the interest of evaluating the cure-induced residual stresses that develop during manufacturing of a thermoset polymer composite, a course of research has been carried out to determine the nature of volume changes that occur during a cure cycle. These volume changes are known to be from two different sources: thermal expansion and cure shrinkage. A well-characterized aerospace material, Hercules 3501-6 Epoxy, has been used to develop a model for the cure shrinkage and thermal expansion during cure. The primary equipment used includes a volumetric dilatometer, which monitors total sample volume change during cure, and a differential scanning calorimeter (DSC), which is used to evaluate sample degree of cure. Cure shrinkage was isolated by monitoring isothermal cure processes, in which case there are no thermal volume changes to account for. Cure shrinkage was shown to be linear with respect to degree of cure. Thermal volmetric effects were determined by investigating cure cycles of constant heat rate. The thermal expansion coefficient was shown to be constant over a wide range of temperature and degree of cure. Based upon experimental data, a model has been developed to predict total volume changes for an arbitrary cure cycle.
| Original language | English (US) |
|---|---|
| Title of host publication | International SAMPE Symposium and Exhibition (Proceedings) |
| Publisher | SAMPE |
| Volume | 45 |
| State | Published - 2000 |
| Externally published | Yes |
| Event | 45th International SAMPE Symposium and Exhibition - Long Beach, CA, USA Duration: May 21 2000 → May 25 2000 |
Other
| Other | 45th International SAMPE Symposium and Exhibition |
|---|---|
| City | Long Beach, CA, USA |
| Period | 5/21/00 → 5/25/00 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemical Engineering (miscellaneous)
- Building and Construction
- Polymers and Plastics
Cite this
Empirical modeling of in-cure volume changes of 3501-6 Epoxy. / Karkkainen, Ryan; Madhukar, Madhu S.; Russell, John D.; Nelson, Karl M.
International SAMPE Symposium and Exhibition (Proceedings). Vol. 45 SAMPE, 2000.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Empirical modeling of in-cure volume changes of 3501-6 Epoxy
AU - Karkkainen, Ryan
AU - Madhukar, Madhu S.
AU - Russell, John D.
AU - Nelson, Karl M.
PY - 2000
Y1 - 2000
N2 - In the interest of evaluating the cure-induced residual stresses that develop during manufacturing of a thermoset polymer composite, a course of research has been carried out to determine the nature of volume changes that occur during a cure cycle. These volume changes are known to be from two different sources: thermal expansion and cure shrinkage. A well-characterized aerospace material, Hercules 3501-6 Epoxy, has been used to develop a model for the cure shrinkage and thermal expansion during cure. The primary equipment used includes a volumetric dilatometer, which monitors total sample volume change during cure, and a differential scanning calorimeter (DSC), which is used to evaluate sample degree of cure. Cure shrinkage was isolated by monitoring isothermal cure processes, in which case there are no thermal volume changes to account for. Cure shrinkage was shown to be linear with respect to degree of cure. Thermal volmetric effects were determined by investigating cure cycles of constant heat rate. The thermal expansion coefficient was shown to be constant over a wide range of temperature and degree of cure. Based upon experimental data, a model has been developed to predict total volume changes for an arbitrary cure cycle.
AB - In the interest of evaluating the cure-induced residual stresses that develop during manufacturing of a thermoset polymer composite, a course of research has been carried out to determine the nature of volume changes that occur during a cure cycle. These volume changes are known to be from two different sources: thermal expansion and cure shrinkage. A well-characterized aerospace material, Hercules 3501-6 Epoxy, has been used to develop a model for the cure shrinkage and thermal expansion during cure. The primary equipment used includes a volumetric dilatometer, which monitors total sample volume change during cure, and a differential scanning calorimeter (DSC), which is used to evaluate sample degree of cure. Cure shrinkage was isolated by monitoring isothermal cure processes, in which case there are no thermal volume changes to account for. Cure shrinkage was shown to be linear with respect to degree of cure. Thermal volmetric effects were determined by investigating cure cycles of constant heat rate. The thermal expansion coefficient was shown to be constant over a wide range of temperature and degree of cure. Based upon experimental data, a model has been developed to predict total volume changes for an arbitrary cure cycle.
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UR - http://www.scopus.com/inward/citedby.url?scp=0033672343&partnerID=8YFLogxK
M3 - Chapter
VL - 45
BT - International SAMPE Symposium and Exhibition (Proceedings)
PB - SAMPE
ER -