B. Gröger
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View article: Effects of various process parameters in the joining process on the squeeze flow of highly viscous thermal interface materials
Effects of various process parameters in the joining process on the squeeze flow of highly viscous thermal interface materials Open
Powertrain concepts incorporating renewable energies are an essential element of the energy revolution and increasingly require efficient manufacturing processes for electronic systems. Particularly, the joining of structures to be thermal…
View article: Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes
Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes Open
This paper investigates two modeling approaches for the simulation of the deformation and decomposition behavior of preconsolidated rovings above the thermoplastic matrix’ melting temperature. This is crucial for capturing the local materi…
View article: Correction: Troschitz et al. Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation. Materials 2022, 15, 5454
Correction: Troschitz et al. Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation. Materials 2022, 15, 5454 Open
The authors would like to make the following corrections about the published paper [...]
View article: Numerical and experimental investigations of piercing fibre-reinforced thermoplastics
Numerical and experimental investigations of piercing fibre-reinforced thermoplastics Open
The joining of continuous fibre-reinforced thermoplastic composites (TPC) by means of plastic deformation often results in a complex material structure in the forming zone. Especially process- and material-related parameters have high infl…
View article: Development and verification of a cure-dependent visco-thermo-elastic simulation model for predicting the process-induced surface waviness of continuous fiber reinforced thermosets
Development and verification of a cure-dependent visco-thermo-elastic simulation model for predicting the process-induced surface waviness of continuous fiber reinforced thermosets Open
Process-induced surface waviness effects represent a major concern for series production of high-quality lightweight structures based on fiber reinforced plastics (FRP). This paper suggests a method for the numerical prediction of these ef…
View article: Warmforming Flow Pressing Characteristics of Continuous Fibre Reinforced Thermoplastic Composites
Warmforming Flow Pressing Characteristics of Continuous Fibre Reinforced Thermoplastic Composites Open
The paper presents research regarding a thermally supported multi-material clinching process (hotclinching) for metal and thermoplastic composite (TPC) sheets: an experimental approach to investigate the flow pressing phenomena during join…
View article: Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions
Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions Open
Deformation of continuous fibre reinforced plastics during thermally-assisted forming or joining processes leads to a change of the initial material structure. The load behaviour of composite parts strongly depends on the resultant materia…
View article: A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters
A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters Open
The 3D shear deformation and failure behaviour of a glass fibre reinforced polypropylene in a shear strain rate range of γ˙=2.2×10−4 to 3.4 1s is investigated. An Iosipescu testing setup on a servo-hydraulic high speed testing unit is used…
View article: Modelling and Simulation Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt and Single Fibres—A Numerical Study
Modelling and Simulation Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt and Single Fibres—A Numerical Study Open
A virtual test setup for investigating single fibres in a transverse shear flow based on a parallel-plate rheometer is presented. The investigations are carried out to verify a numerical representation of the fluid–structure interaction (F…
View article: Development of a High-Fidelity Framework to Describe the Process-Dependent Viscoelasticity of a Fast-Curing Epoxy Matrix Resin including Testing, Modelling, Calibration and Validation
Development of a High-Fidelity Framework to Describe the Process-Dependent Viscoelasticity of a Fast-Curing Epoxy Matrix Resin including Testing, Modelling, Calibration and Validation Open
Fast-curing epoxy resins enable substantial reduction of cycle times during production of thermoset polymer matrix composites. Due to the snap-cure behaviour, both characterisation and processing of these resins are associated with high co…
View article: Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation
Joining Processes for Fibre-Reinforced Thermoplastics: Phenomena and Characterisation Open
Thermoplastic composites (TPCs) are predestined for use in lightweight structures, especially for high-volume applications. In many cases, joining is a key factor for the successful application of TPCs in multi-material systems. Many joini…
View article: Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets
Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets Open
Recent developments in automotive and aircraft industry towards a multi-material design pose challenges for modern joining technologies due to different mechanical properties and material compositions of various materials such as composite…
View article: Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies
Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies Open
Clinching continuous fibre reinforced thermoplastic composites and metals is challenging due to the low ductility of the composite material. Therefore, a number of novel clinching technologies has been developed specifically for these mate…
View article: Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure
Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure Open
Thermally supported clinching (Hotclinch) is a novel promising process to join dissimilar materials. Here, metal and fibre-reinforced thermoplastics (FRTP) are used within this single step joining process and without the usage of auxiliary…
View article: Visco-thermo-elastic Simulation Approach For Prediction of Cure-induced Residual Stresses in Fiber Reinforced Composites
Visco-thermo-elastic Simulation Approach For Prediction of Cure-induced Residual Stresses in Fiber Reinforced Composites Open
Liquid composite molding (LCM) has established as a high quality manufacturing process for fiber reinforced composite structures. In order to reduce cycle times significantly, novel fast curing matrix resins are being introduced into serie…
View article: Characterization and Numerical Modelling of Through-Thickness Metallic-Pin-Reinforced Fibre/Thermoplastic Composites under Bending Loading
Characterization and Numerical Modelling of Through-Thickness Metallic-Pin-Reinforced Fibre/Thermoplastic Composites under Bending Loading Open
Through-Thickness Reinforcement (TTR) technologies are well suited to improving the mechanical properties in the out-of-plane direction of fibre-reinforced composites. However, besides the enhancement of delamination resistance and thus th…
View article: Experimental and Numerical Studies on the Deformation of a Flexible Wire in an Injection Moulding Process
Experimental and Numerical Studies on the Deformation of a Flexible Wire in an Injection Moulding Process Open
The application of thermoplastic materials is state of the art due to their fast cycle times in production and large freedom of shaping. To enhance the performance and functionality, additional materials or elements are embedded into the b…
View article: Thermomechanical Characterization of a Fast Curing Epoxy Resin for Simulation of Surface Waviness
Thermomechanical Characterization of a Fast Curing Epoxy Resin for Simulation of Surface Waviness Open
The interaction of process parameters and material properties represents a major challenge for reproducible manufacture of high quality composite parts with polymer matrix. Major phenomena that have to be taken into account are thermal exp…