Predicting the surface waviness of sheet moulding compound parts by simulating process-induced thermal stresses
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Walter Michaeli
Abstract
This paper describes an opportunity to compute the surface waviness of compression moulded sheet moulding compound (SMC) parts by simulating residual stresses. First, different types of surface defects occurring on SMC parts are discussed. A method for calculating the surface waviness of the compression moulded part is presented, which combines the simulation of the production process and the structural computation. Modelling of the curing reaction and the development of mechanical properties are discussed and implemented. The potential of the computation method is shown for an automotive fender made of SMC. The results state that the curing reaction of SMC can be well described using the approach of Ng and Manas-Zloczower. The position of the measured waviness on the examined fender is in good agreement with the calculated stress distribution.
©2011 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Original Articles
- Adhesive bonding between multi-material assembly injection molding parts with an adhesive interlayer
- An effective approach to measuring real-time mold deflection during injection molding
- Predicting the surface waviness of sheet moulding compound parts by simulating process-induced thermal stresses
- Fabrication and assessment of polyacrylate/(guar gum modified bentonite) superabsorbent polymeric composite
Articles in the same Issue
- Original Articles
- Adhesive bonding between multi-material assembly injection molding parts with an adhesive interlayer
- An effective approach to measuring real-time mold deflection during injection molding
- Predicting the surface waviness of sheet moulding compound parts by simulating process-induced thermal stresses
- Fabrication and assessment of polyacrylate/(guar gum modified bentonite) superabsorbent polymeric composite
