Fiber Orientation Tensors And Mean Field Homogenization Application To Sheet Molding Compound
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Fiber Orientation Tensors and Mean Field Homogenization Application to Sheet Molding Compound
Author | : Bauer, Julian Karl |
Publsiher | : KIT Scientific Publishing |
Total Pages | : 252 |
Release | : 2023-02-27 |
Genre | : Technology & Engineering |
ISBN | : 9783731512622 |
Download Fiber Orientation Tensors and Mean Field Homogenization Application to Sheet Molding Compound Book in PDF, Epub and Kindle
Effective mechanical properties of fiber-reinforced composites strongly depend on the microstructure, including the fibers' orientation. Studying this dependency, we identify the variety of fiber orientation tensors up to fourth-order using irreducible tensors and material symmetry. The case of planar fiber orientation tensors, relevant for sheet molding compound, is presented completely. Consequences for the reconstruction of fiber distributions and mean field homogenization are presented.
Thermomechanical Mean Field Modeling and Experimental Characterization of Long Fiber Reinforced Sheet Molding Compound Composites
Author | : Kehrer, Maria Loredana |
Publsiher | : KIT Scientific Publishing |
Total Pages | : 204 |
Release | : 2019-06-13 |
Genre | : Technology & Engineering |
ISBN | : 9783731509240 |
Download Thermomechanical Mean Field Modeling and Experimental Characterization of Long Fiber Reinforced Sheet Molding Compound Composites Book in PDF, Epub and Kindle
A discontinuous fiber-reinforced thermoset material produced by the Sheet Molding Compound process is investigated. Due to the process-related fiber orientation distribution, a composite with an anisotropic microstructure is created which crucially affects the mechanical properties. The central objectives are the modeling of the thermoelastic behavior of the composite accounting for the underlying microstructure, and the experimental characterization of the pure resin and the composite material.
Biaxial Characterization and Mean field Based Damage Modeling of Sheet Molding Compound Composites
Author | : Schemmann, Malte |
Publsiher | : KIT Scientific Publishing |
Total Pages | : 194 |
Release | : 2018-11-09 |
Genre | : Electronic Book |
ISBN | : 9783731508182 |
Download Biaxial Characterization and Mean field Based Damage Modeling of Sheet Molding Compound Composites Book in PDF, Epub and Kindle
Deep material networks for efficient scale bridging in thermomechanical simulations of solids
Author | : Gajek, Sebastian |
Publsiher | : KIT Scientific Publishing |
Total Pages | : 326 |
Release | : 2023-08-25 |
Genre | : Electronic Book |
ISBN | : 9783731512783 |
Download Deep material networks for efficient scale bridging in thermomechanical simulations of solids Book in PDF, Epub and Kindle
We investigate deep material networks (DMN). We lay the mathematical foundation of DMNs and present a novel DMN formulation, which is characterized by a reduced number of degrees of freedom. We present a efficient solution technique for nonlinear DMNs to accelerate complex two-scale simulations with minimal computational effort. A new interpolation technique is presented enabling the consideration of fluctuating microstructure characteristics in macroscopic simulations.
A computational multi scale approach for brittle materials
Author | : Ernesti, Felix |
Publsiher | : KIT Scientific Publishing |
Total Pages | : 264 |
Release | : 2023-04-17 |
Genre | : Technology & Engineering |
ISBN | : 9783731512851 |
Download A computational multi scale approach for brittle materials Book in PDF, Epub and Kindle
Materials of industrial interest often show a complex microstructure which directly influences their macroscopic material behavior. For simulations on the component scale, multi-scale methods may exploit this microstructural information. This work is devoted to a multi-scale approach for brittle materials. Based on a homogenization result for free discontinuity problems, we present FFT-based methods to compute the effective crack energy of heterogeneous materials with complex microstructures.
Microstructure modeling and crystal plasticity parameter identification for predicting the cyclic mechanical behavior of polycrystalline metals
Author | : Kuhn, Jannick |
Publsiher | : KIT Scientific Publishing |
Total Pages | : 224 |
Release | : 2023-04-04 |
Genre | : Technology & Engineering |
ISBN | : 9783731512721 |
Download Microstructure modeling and crystal plasticity parameter identification for predicting the cyclic mechanical behavior of polycrystalline metals Book in PDF, Epub and Kindle
Computational homogenization permits to capture the influence of the microstructure on the cyclic mechanical behavior of polycrystalline metals. In this work we investigate methods to compute Laguerre tessellations as computational cells of polycrystalline microstructures, propose a new method to assign crystallographic orientations to the Laguerre cells and use Bayesian optimization to find suitable parameters for the underlying micromechanical model from macroscopic experiments.
Thermomechanical Mean Field Modeling and Experimental Characterization of Long Fiber Reinforced Sheet Molding Compound Composites
Author | : Maria Loredana Kehrer |
Publsiher | : Unknown |
Total Pages | : 196 |
Release | : 2020-10-09 |
Genre | : Technology & Engineering |
ISBN | : 1013281942 |
Download Thermomechanical Mean Field Modeling and Experimental Characterization of Long Fiber Reinforced Sheet Molding Compound Composites Book in PDF, Epub and Kindle
A discontinuous fiber-reinforced thermoset material produced by the Sheet Molding Compound process is investigated. Due to the process-related fiber orientation distribution, a composite with an anisotropic microstructure is created which crucially affects the mechanical properties. The central objectives are the modeling of the thermoelastic behavior of the composite accounting for the underlying microstructure, and the experimental characterization of the pure resin and the composite material. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Biaxial Characterization and Mean field Based Damage Modeling of Sheet Molding Compound Composites
Author | : Malte Schemmann |
Publsiher | : Unknown |
Total Pages | : 186 |
Release | : 2020-10-09 |
Genre | : Technology & Engineering |
ISBN | : 1013278682 |
Download Biaxial Characterization and Mean field Based Damage Modeling of Sheet Molding Compound Composites Book in PDF, Epub and Kindle
The focus of this work lies on the microstructure-based modeling and characterization of a discontinuous fiber-reinforced thermoset in the form of sheet molding compound (SMC). A microstructure-based parameter identification scheme for SMC with an inhomogeneous fiber orientation distribution is introduced. Different cruciform specimen designs, including two concepts to reinforce the specimens' arms are evaluated. Additionally, a micromechanical mean-field damage model for the SMC is introduced. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.