1. Center for Composite Materials Department of Mechanical Engineering Have we Improved Processability for Liquid Molding with Process Modeling ? Injection & Compression Molding Liquid Composite Molding

2. Center for Composite Materials Department of Mechanical Engineering Domain of Composite Molding Processes

3. Center for Composite Materials Department of Mechanical Engineering Macro flow modeling issues in Liquid Composite Molding 14775

4. Center for Composite Materials Department of Mechanical Engineering Micro flow modeling issues in Liquid Composite Molding 14785 Unsaturated Effects Micro Void Formation Preform Deformation & Compaction Vent Injection

5. Center for Composite Materials Department of Mechanical Engineering Issues and Challenges in Liquid Composite Molding Preforming Complete Saturation and Voids Injection and Vent Locations Process Control Reliability and Repeatability Issues Challenges Three Dimensional Flow Modeling Saturation Physics Dimensional Tolerances Flow Control Distribution Media Design Location of Resin Injectors Automation Large and Complex parts

6. Center for Composite Materials Department of Mechanical Engineering Will modeling improve preform Manufacturing and Processability ? s1 s2 B A C zoom knots with b.c.’s projection of y axis

7. Center for Composite Materials Department of Mechanical Engineering Can one improve yield despite uncertainties in process? Can modeling help? Preform Nesting Flow Channels Resin Arrival on Tool Surface

8. Center for Composite Materials Department of Mechanical Engineering Can one introduce Control and Automation to address uncertainties in process and materials ? Past Future

9. Center for Composite Materials Department of Mechanical Engineering The Road from Injection Molding to Liquid Composite Molding Has Process Modeling been useful in Injection Molding? Yes! NSF Center for Injection Molding made CAE an integral Part of Manufacturing Why is the tech transfer so slow in Liquid Composite Molding (LCM)? Is the Process more forgiving ? Has it moved into the commercial zone from Military Arena ? What more can be done to move it into the commercial zone ? Are process models already advanced to the stage of deployment? Why LCM industry is not willing to embrace the role of modeling?