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Multi-scale material modelling to predict the material anisotropy of multi-phase steels KU Leuven
© 2019 Elsevier B.V. In this article, a novel material modelling approach to predict the anisotropic material response of multi-phase steels is developed. The macroscopic material behaviour of the model is characterized by the homogenized response of a meso-scale Representative Volume Element (RVE), derived by Finite Element (FE) simulations. The RVE holds the most relevant microstructural features of the material under consideration, such as ...
Finite element modelling of the material behaviour of glass fibre textile reinforced cementitious composite Vrije Universiteit Brussel
The application of glass fibre textile reinforced cementitious composites (GTRC) in doubly-curved shells has numerous advantages over other widely-used materials for free form shapes. In this paper, the suitability of different material models - available in the finite element programs Ansys and Abaqus - for the modelling of glass textile reinforced cementitious composites is evaluated. The use of the concrete smeared crack model in Abaqus for ...
Integrated material modelling on the crashworthiness of automotive high strength steel sheets Ghent University
The aim of this study is to investigate the impact of microstructure features on the crashworthiness for automotive high-strength steel sheets by using multiscale modelling approach ondifferent length scales, which provides a toolkit for the further microstructure design to meet the desired improvement of component performance. An extensive experimental program is designed involving various sample geometries that cover a wide range of stress ...
Stress based identification of non-linear material behaviour by inverse modelling Vrije Universiteit Brussel
Stress based identification of non-linear material behaviour by inverse modelling
Computational modelling of material behaviour of layered 3D printed concrete KU Leuven
Based on mechanical test results performed parallel, perpendicular and at an angle to the print direction, an attempt is made to describe the laminar material behaviour of 3D printed concrete.With the resulting material model, several possible mathematical simulation techniques are compared to propose the most suitable design method. In addition to modifying the material properties, equivalent geometrical quantities can also be used to correctly ...
Convective heat and mass transfer modelling at air-porous material interfaces: overview of existing methods and relevance KU Leuven
Accurate predictions of convective heat and mass transfer at air-porous material interfaces are essential in many engineering applications, one example being optimisation of industrial drying processes with respect to energy consumption and product quality. For porous-material modelling purposes, simplified convective transfer coefficients (CTCs) are often used to avoid explicit air-flow modelling. Alternatively, conjugate models have been ...
Thermal Modelling of Normal Distributed Nanoparticles Through Thickness in an Inorganic Material Matrix KU Leuven
Nanoscale materials showing superior thermal properties have raised the interest of the building industry. By adding these materials to conventional construction materials, it is possible to decrease the total thermal conductivity by almost one order of magnitude. This conductivity is mainly influenced by the dispersion quality within the matrix material. At the industrial scale, the main challenge is to control this dispersion to reduce or even ...
Identification of mechanical material behaviour through inverse modelling and DIC Vrije Universiteit Brussel
Inverse methods offer a powerful tool for the identification of the elasto-plastic material parameters. One of the advantages with respect to classical material testing is the fact that those inverse methods are able to deal with heterogeneous deformation fields. The basic principle of the inverse method that is presented in this paper, is the comparison between experimentally measured strain fields and those computed by the finite element (FE) ...