Influence of Stitching Parameters on the Joint Strength of Welded-Stitched Composites
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L.-M. Wittmann
, T. Kleffel , T. Mattner und D. Drummer
Abstract
Regarding the necessity of lightweight construction, performance and design, composites are well established. At this moment, the joining of these composites still is often a major challenge. While suitable technologies like welding, sticking or riveting do exist, there are several drawbacks of these technologies such as damaging the fiber structure and low bonding strength. The combination of welding and sewing is a novel approach to improve the bonding of glass fibre-reinforced polypropylene and the influence of the processing parameters is not yet well understood. This study aims at analyzing the influence of parameters such as operating temperature, overlap length, needle temperature and thread material on the tensile strength of thermoplastic composites joined in the previously described hybrid approach. Furthermore, the interaction between thread and composite material is investigated by a microscopical analysis. The joint strength has been found to depend on the overlap length of the joint and the results suggest a contribution of the seam to the joint strength, especially for lower overlap lengths. Influences of the processing temperature, the thread material and needle temperature are also present, however, due to the complex interaction, no systematic conclusions could be drawn for these yet. The optical analysis confirms the findings of thermoset composites stitched before impregnation, where additional seams cause dislocations and local agglomeration of fibers. Additional investigations are necessary to determine the effect of the stitching on the joint and to further the understanding of the interaction between composite and thread material.
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© 2018, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Review Article
- Extensional Rheology and Processing of Polymeric Materials
- Regular Contributed Articles
- Investigation of the Effect of Filler Concentration on the Flow Characteristics of Filled Polyethylene Melts
- Preparation and Characterization of Biodegradable Polylactic Acid/Polypropylene Spun-Bonded Nonwoven Fabric Slices
- Flow Behavior of a Polypropylene Melt in Capillary Dies
- Material Behavior in the Plasticizing Cylinder of an Injection Molding of the Vent Type
- Computer Flow Simulation of Moffatt Eddies in Single Screw Extrusion
- Crystallization Kinetics and Multiple Melting Behavior of Biodegradable Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)
- Wood-Polypropylene Composites: Influence of Processing on the Particle Shape and Size in Correlation with the Mechanical Properties Using Dynamic Image Analysis
- Selecting Optimal Molding and Material Conditions of Reinforced Polymeric Nanocomposites with MWCNT Using a Multi-Criteria Decision Making Model
- Effect of ZnO on Mechanical and Electrical Properties of Peroxide Cured EPDM
- Influence of Stitching Parameters on the Joint Strength of Welded-Stitched Composites
- Effect of Process Parameters on Shear Layer Thickness in Injection Molded Short-Glass Fiber Reinforced Polypropylene
- Preparation and Property Investigation of Epoxy/Amine Micro/Nanocapsule Based Self-healing Coatings
- On the Prediction of Pantographing that Occurs between Reinforcement Cords Embedded within Uncured Rubber Layers during Molding of Tires
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Review Article
- Extensional Rheology and Processing of Polymeric Materials
- Regular Contributed Articles
- Investigation of the Effect of Filler Concentration on the Flow Characteristics of Filled Polyethylene Melts
- Preparation and Characterization of Biodegradable Polylactic Acid/Polypropylene Spun-Bonded Nonwoven Fabric Slices
- Flow Behavior of a Polypropylene Melt in Capillary Dies
- Material Behavior in the Plasticizing Cylinder of an Injection Molding of the Vent Type
- Computer Flow Simulation of Moffatt Eddies in Single Screw Extrusion
- Crystallization Kinetics and Multiple Melting Behavior of Biodegradable Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)
- Wood-Polypropylene Composites: Influence of Processing on the Particle Shape and Size in Correlation with the Mechanical Properties Using Dynamic Image Analysis
- Selecting Optimal Molding and Material Conditions of Reinforced Polymeric Nanocomposites with MWCNT Using a Multi-Criteria Decision Making Model
- Effect of ZnO on Mechanical and Electrical Properties of Peroxide Cured EPDM
- Influence of Stitching Parameters on the Joint Strength of Welded-Stitched Composites
- Effect of Process Parameters on Shear Layer Thickness in Injection Molded Short-Glass Fiber Reinforced Polypropylene
- Preparation and Property Investigation of Epoxy/Amine Micro/Nanocapsule Based Self-healing Coatings
- On the Prediction of Pantographing that Occurs between Reinforcement Cords Embedded within Uncured Rubber Layers during Molding of Tires
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts