A Guide to Modeling Thermoplastic Composite Manufacturing Processes

Preface

1. Introduction

2. Background
2.1. Thermoplastic Matrix Composite Materials
2.1.1. Twintex®
2.1.2. Crystallization in Polypropylene
2.2. Thermoplastic Matrix Composite Manufacturing Methods
2.2.1. Compression Moulding
2.2.2. Vacuum Bag and Autoclave
2.2.3. Roll Forming
2.2.4. Stamp Forming
2.3. Spring-in
2.3.1. Spring-in Mechanisms

3. Synopsis of Current Knowledge
3.1. Thermoplastic Spring-in Modeling

4. Material Property Testing
4.1. Uniaxial Extension
4.2. Thermal Mechanical Analysis (TMA)
4.3. Differential Scanning Calorimetry (DSC)
4.4. Dynamic Mechanical Analysis (DMA)
4.5. Stress Relaxation

5. Process Characterization of Roll Forming
5.1. Geometry of Example Case
5.2. Thermal Cycle
5.3. Spring-in Measurements

6. Case Study Modeling Approaches and Results
6.1. Analysis Type
6.2. Model 1: Using Elastic Mechanical Properties
6.2.1. Geometry
6.2.2. Material Properties
6.2.3. Boundary Conditions
6.2.4. Analysis Steps
6.2.5. Mesh
6.2.6. Results
6.2.7. Sensitivity Analysis
6.2.8. Summary
6.3. Model 2: Using Viscoelastic Mechanical Properties
6.3.1. Material Properties
6.3.2. Results and Discussion
6.4. Model 3: Pseudo Meso-Level Decomposition
6.4.1. Results and Discussion

7. Conclusions and Recommendations

Bibliography
Index