Abstract
Based on Barone and Caulk's model and a generalized variational functional, a finite element simulation was developed for the compression mold filling of thin and thick cavities. For solving the u-ν-p type equations, an element-based penalty method and a mixed formulation were implemented. Numerical results show that the new model gives better accuracy in velocity and velocity gradient than the Hele-Shaw formulation for cases where both models are appropriate. Predictions of velocity and its gradient by the model are compared with other FEM results and BEM solutions. Using a fixed mesh that covers the mold cavity, a new technique was developed for tracking the moving flow front. Temporary elements and nodes are generated for the filled part of elements intersected by the flow front. This method allows a smooth representation of the flow front and has exact boundary conditions on the flow front. The scheme is demonstrated for compression molding of elliptical and L-shaped charges.
Original language | English (US) |
---|---|
Title of host publication | Use of Plastics and Plastic Composites |
Subtitle of host publication | Materials and Mechanics Issues |
Editors | M. Ramulu, R. Komanduri |
Publisher | Publ by ASME |
Pages | 569-585 |
Number of pages | 17 |
Volume | 46 |
ISBN (Print) | 0791812529 |
State | Published - 1993 |
Externally published | Yes |
Event | Proceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA Duration: Nov 28 1993 → Dec 3 1993 |
Other
Other | Proceedings of the 1993 ASME Winter Annual Meeting |
---|---|
City | New Orleans, LA, USA |
Period | 11/28/93 → 12/3/93 |
ASJC Scopus subject areas
- Engineering(all)