A5007140103- Mechanical Behavior of Composites
- Composite Material Mechanics
- Structural Behavior of Reinforced Concrete
- Fiber-reinforced polymer composites
- Fatigue and fracture mechanics
- Innovations in Concrete and Construction Materials
- Numerical methods in engineering
- Mechanical Failure Analysis and Simulation
- Composite Structure Analysis and Optimization
- Non-Destructive Testing Techniques
- Corrosion Behavior and Inhibition
- Engineering Diagnostics and Reliability
- Mechanical Engineering and Vibrations Research
- Structural Analysis and Optimization
- Mechanical stress and fatigue analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Metal Forming Simulation Techniques
- Physics and Engineering Research Articles
- Structural Analysis of Composite Materials
- Aluminum Alloys Composites Properties
- Flexible and Reconfigurable Manufacturing Systems
- Structural Response to Dynamic Loads
- Advanced machining processes and optimization
- Structural Health Monitoring Techniques
- Engineering and Materials Science Studies
Fraunhofer Institute for Mechanics of Materials
2011-2024
Fraunhofer Society
2013-2014
Engineering steels are used for a wide range of applications in which their fatigue behavior is crucial design factor. The properties depend on various influencing factors such as chemical composition, heat treatment, surface properties, load parameters, microstructure, and others. During product development, material characterization qualification experiments mandatory. For faster more cost‐efficient data driven methods (machine learning) promise to replace or complement testing by...
Objective of the present study is definition a continuum damage mechanics material model describing degradation fiber reinforced materials under fatigue loads up to final failure. Based on linear elastic framework, brittle for conditions derived, where constitutes only nonlinearity. The accounts effects by successive moduli. Assuming that driven microplastic work, stress-driven evolution equation defined. For generality, fully three-dimensional formulation single ply level employed....
Long fiber reinforced thermoplastics are promising candidates for the mass production of lightweight components. In order to predict their microstructure-dependent properties, a novel procedure generation representative volume element is developed. The approach mimics pressing process during fabrication material by compression molding. model experimentally validated with respect different mechanical including elasticity, creep and damage.
Depreciation of natural resources leads to an increasing demand for sustainable materials. Fiber‐reinforced plastics are known combining low specific weight with high stiffness and toughness, making them the preferred material design lightweight structures. However, one main problems use this is limited recyclability due necessity split up fiber matrix composite into its constituents. Furthermore, recycled fibers require a recyclable sizing or alternatively, cleaning, re‐application new...
Objective of the present study is definition a material model accounting for fatigue damage and degradation. The formulated as brittle in otherwise linear elastic framework. A stress driven evolution equation derived from microplasticity considerations. implemented user-defined into commercial finite element program. In comparison with experimental data low cycle regime, good agreement numerical prediction obtained.
Für flächige Unterbodenstrukturen im Fahrzeugbereich ist ein Sandwich-Aufbau besonders geeignet. So kann in der Fahrzeugstruktur weiteres Gewicht eingespart werden, was insbesondere für die Elektromobilität von Bedeutung ist. Eine kosteneffiziente Großserienproduktion durch den Einsatz thermoplastbasierten Verbundwerkstoffen realisiert werden. Ein kritischer Punkt jedoch Einleitung punktförmiger Lasten Sandwich-Verbund, wie sie beispielsweise bei Anschraubung Gurten und Sitzen auftreten....
Abstract A major issue concerning Carbon Fibre Reinforced Polymer (CFRP) materials under cyclic loading is that the often undergo material degradation starting from initial stage of loading. For a laminate consists different fibre orientation plies, this becomes crucial as it causes redistribution stresses and strains during lifetime component. Understanding importance reliable fatigue damage model in development reliability assessment CFRP materials, present studies contribute to by...
Abstract The present study is concerned with the formulation, implementation and validation of anisotropic creep laws for neat thermoplastic matrix materials, discontinuously long fiber reinforced (LFT) composite materials process dependent preference directions as well unidirectionally tapes. Based on a simple three term Kelvin‐Voigt approach, an model formulated implemented into finite element program. validated against experimental data base experiments continuously materials.