Papers

Numerical aspects of computational homogenization

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Numerical aspects of computational homogenization Marta Serafin, Witold Cecot Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków. DOI: https://doi.org/10.7494/cmms.2013.2.0432 Abstract: Computational homogenization enables replacement of a heterogeneous domain by an equivalent body with effective material parameters. Approach that we use is based on two-scale micro/macro analysis. In the micro-scale heterogeneous properties are collected in … Read more

Rule-based simplified procedure for modeling of stress relaxation

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Rule-based simplified procedure for modeling of stress relaxation Krzysztof Regulski1, Danuta Szeliga1, Jacek Rońda1, Andrzej Kuźniar2, Rafał Puc2 1AGH University of Science and Technology, Cracow, Poland, Mickiewicza 30.2WSK PZL – Rzeszów S.A., Hetmańska 120. DOI: https://doi.org/10.7494/cmms.2013.2.0448 Abstract: A case study of rule knowledge base on developing stress relaxation in welded components is presented in the … Read more

A pod/pgd reduction approach for an efficient parameterization of data-driven material microstructure models

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A pod/pgd reduction approach for an efficient parameterization of data-driven material microstructure models Liang Xia1,2, Balaji Raghavan1, Piotr Breitkopf1, Weihong Zhang2 1Laboratoire Roberval, UMR 7337 UTC-CNRS, UTC, Compiègne, France.2Engineering Simulation and Aerospace Computing (ESAC), NPU, Xi’an, China. DOI: https://doi.org/10.7494/cmms.2013.2.0433 Abstract: The general idea here is to produce a high quality representation of the indicator function … Read more

Experimental apparatus for sheet metal hemming analysis

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Experimental apparatus for sheet metal hemming analysis Sławomir Świłło Faculty of Production Engineering, Warsaw University of Technology, Warsaw, Poland. DOI: https://doi.org/10.7494/cmms.2013.2.0449 Abstract: A new portable system for experimental investigation in the process of sheet metal hemming was developed. In the introduction, information was provided about the need to use machine vision systems to solve problems … Read more

Local numerical homogenization in modeling of heterogeneous visco-elastic materials

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Local numerical homogenization in modeling of heterogeneous visco-elastic materials Marek Klimczak, Witold Cecot Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków. DOI: https://doi.org/10.7494/cmms.2013.2.0434 Abstract: The main objective of this paper is to present the prospects of application of local numerical homogenization to visco-elastic problems. Local numerical homogenization is one of the computational homogenization methods, … Read more

An experimental and numerical study of material deformation of a blanking process

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An experimental and numerical study of material deformation of a blanking process Sławomir Świłło, Piotr Czyżewski Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland. DOI: https://doi.org/10.7494/cmms.2013.2.0450 Abstract: An experimental and numerical investigation is carried out in order to determine a material deformation of a blanking process. A highly localized, … Read more

Numerical simulations of strain localization for large strain damage-plasticity model

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Numerical simulations of strain localization for large strain damage-plasticity model Balbina Wcisło, Jerzy Pamin Institute for Computational Civil Engineering, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland. DOI: https://doi.org/10.7494/cmms.2013.2.0435 Abstract: This paper deals with the phenomenon of strain localization in nonlinear and nonlocal material models. Particularly, in the description of the material not only … Read more

Modelling of stamping process of titanium tailor-welded blanks

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Modelling of stamping process of titanium tailor-welded blanks Piotr Lacki, Janina Adamus, Wojciech Więckowski, Julita Winowiecka Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland. DOI: https://doi.org/10.7494/cmms.2013.2.0451 Abstract: In the paper some numerical simulation results of sheet-titanium forming of tailor-welded blanks (TWB) are presented. Forming the spherical caps from the uniform and welded blanks … Read more

The multi-scale numerical and experimental analysis of cold wire drawing for hardly deformable biocompatible magnesium alloy

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The multi-scale numerical and experimental analysis of cold wire drawing for hardly deformable biocompatible magnesium alloy Andrzej Milenin, Piotr Kustra, Dorota Byrska-Wójcik AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2013.2.0436 Abstract: The problem of determination the drawing schedule of the cold drawing of thin (less than 0.1 mm) wire … Read more

First principles phase diagram calculations for the cdse-cds wurtzite, zincblende and rock salt structures

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First principles phase diagram calculations for the cdse-cds wurtzite, zincblende and rock salt structures Andrzej Woźniakowski1, Józef Deniszczyk1, Omar Adjaoud2,4, Benjamin P. Burton3 1Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland2GFZ German Research Centre for Geosciences, Section 3.3, Telegrafenberg, 14473 Potsdam, Germany.3Ceramics Division, Materials Science and Engineering Laboratory, National Institute of … Read more