Martin Hohberg

ORCID: 0000-0002-6617-9977
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Epoxy Resin Curing Processes
  • Composite Material Mechanics
  • Injection Molding Process and Properties
  • Manufacturing Process and Optimization
  • Fluid Dynamics Simulations and Interactions
  • Additive Manufacturing and 3D Printing Technologies
  • Mechanical Behavior of Composites
  • Innovations in Concrete and Construction Materials
  • Lattice Boltzmann Simulation Studies
  • Polymer Foaming and Composites
  • Rheology and Fluid Dynamics Studies
  • Flexible and Reconfigurable Manufacturing Systems
  • BIM and Construction Integration
  • Metal Forming Simulation Techniques
  • Material Properties and Processing
  • Granular flow and fluidized beds
  • Numerical methods in engineering

Karlsruhe Institute of Technology
2017-2022

Western University
2019

Fraunhofer Institute for Chemical Technology
2019

The reactive process of reinforced thermoset injection molding significantly influences the mechanical properties final composite structure. Therefore, reliable simulation is crucial to predict behavior and relevant effects. Virtual design thus highly important for manufacturing industry creating high quality parts. Although shows a more complex flow behavior, state art software typically focusses on thermoplastic molding. To overcome this gap in virtual prediction, present work proposes...

10.3390/jcs2010005 article EN Journal of Composites Science 2018-01-31

The behavior of fiber suspensions during flow is fundamental importance to the process simulation discontinuous reinforced plastics. However, direct flexible fibers and fluid poses a challenging two-way coupled fluid-structure interaction problem. Smoothed Particle Hydrodynamics (SPH) offers natural way treat such interactions. Hence, this work utilizes SPH bead chain model compute shear suspensions. introduction novel viscous surface traction term key achieve full agreement with Jeffery’s...

10.3390/jcs4020077 article EN Journal of Composites Science 2020-06-22

The compression molding process of sheet compound (SMC) is an economical manufacturing for lightweight parts. However, defects, such as fiber matrix separation, and re-orientation, may develop during the in confined regions, ribs bosses. Hence, mechanical properties composite depend on local architecture. Consequently, this work compares predictive capabilities tensor-based directly modeled simulation approaches regarding force, volume content orientation example honeycomb structures molded...

10.3390/jcs6030068 article EN Journal of Composites Science 2022-02-23

Abstract The rheological characterization of Sheet Molding Compound (SMC) and its modelling is crucial for reliable process simulations. In the past, material were mainly focusing on SMC with low glass fiber content a high filler fraction. Due to new application areas, without fillers contents, carbon fibers become more important. Therefore, these three types SMCs are characterized in this work, using an inline tool. Differences regarding their compressibility flow dependency identified...

10.3139/217.3556 article EN International Polymer Processing 2017-11-17

For a realistic process simulation of sheet molding compound (SMC), comprehensive and reliable viscosity data are essential. As the mean fiber-length in SMC is similar to sample size shear rheometers, an alternative rheology tool method was developed. Therefore, for compression equipped with pressure sensors. By means this tool, distribution measured thus rheological behavior two semistructural systems consisting hybrid UPPH resin glass or carbon fibers were estimated. The characterization...

10.1063/1.5121660 article EN AIP conference proceedings 2019-01-01

Die ganzheitliche virtuelle Auslegung von Faserverbundbauteilen aus Sheet Molding Compund (SMC) ermoglicht es durch die Berucksichtigung Fertigungseffekten in der Struktursimulation, bedarfsgerechtere und somit leichtere gunstigere Bauteile zu fertigen. Hierfur muss jedoch Prozesssimulation Lage sein, SMC-spezifischen Blockstromung auf Grund niedrig-viskosen Randschicht richtig beschreiben. Nur so kann das richtige Fullverhalten auch Faserorientierungsverteilung vorhergesagt werden. Dies...

10.5445/ir/1000089452 article DE 2019-01-01

Abstract This contribution presents a physical process chain and the corresponding virtual for sheet molding compound (SMC) composites. Here, focus lies on as motivation discussed in authors' publication [1]. The key steps of are identification initial boundary conditions, compression simulation, mapping data structural simulation. so established is validated via experimental investigations demonstrator structure. Both, predicted results well simulation good accordance with experiments.

10.1002/pamm.201900124 article EN cc-by PAMM 2019-11-01
Coming Soon ...