cmms

Mapping microstructure in ac and psc testpieces deformed at high temperature

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Mapping microstructure in ac and psc testpieces deformed at high temperature Bryan Roebuck1, Ken P. Mingard1, Matthew Brooks1, Eric J. Palmiere2, Brad P. Wynne2, Matthew J. Thomas2 1NPL, Teddington, Middlesex, London, UK. 2IMMPETUS, Institute for Microstructural and Mechanical Process Engineering, The University of Sheffield, Sheffield, UK. DOI: https://doi.org/10.7494/cmms.2007.4.0182 Abstract: Good measurement infrastructure is vital for … Read more

Physical and numerical modelling of forging accounting for exploitation properties of products

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Physical and numerical modelling of forging accounting for exploitation properties of products Lukasz Madej1, Danuta Szeliga1, Roman Kuziak2, Maciej Pietrzyk1 1Department of Applied Computer Science and Modelling Akademia Gorniczo Hutnicza, Krakow, Poland. 2Institute for Ferrous Metallurgy, Gliwice, Poland. DOI: https://doi.org/10.7494/cmms.2007.4.0177 Abstract: Idea of modelling of the life cycle of materials is presented and benefits of … Read more

Online visioplasticity in forging processes

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Online visioplasticity in forging processes Matthias Schmidtchen, Anja Brethfeld, Gunter Lehmann Technical University of Mining and Technology, Institute for Metal Forming, D- 09596 Freiberg,,Bernhard-von-Cotta-Straße 4, Germany. DOI: https://doi.org/10.7494/cmms.2007.4.0178 Abstract: In the present paper a contactless optical method for visioplastic investigation of the displacement and strain field in hammer forging was discussed. Coupled with thermographic measurements … Read more

Optimisation strategies to determine process parameters in tube hydroforming

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Optimisation strategies to determine process parameters in tube hydroforming Rosa Di Lorenzo, Giuseppe Ingarao, Fabrizio Micari Università di Palermo, Dipartimento di Tecnologia Meccanica, Produzione e Ingegneria Gestionale, Palermo. DOI: https://doi.org/10.7494/cmms.2007.3.0174 Abstract: In tube hydroforming the concurrent actions of pressurized fluid and mechanical feeding allows to obtain tube shapes characterized by complex geometries such as different … Read more

Comparison of mathematical models for the turbulent fluid flow, heat transfer and solidification in the continuous casting process

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Comparison of mathematical models for the turbulent fluid flow, heat transfer and solidification in the continuous casting process Rodrigo Ottoni Da Silva Pereira, Roberto Parreiras Tavares Federal University of Minas Gerais, Belo Horizonte, Brazil. DOI: https://doi.org/10.7494/cmms.2007.3.0175 Abstract: In the present work a mathematical model for the continuous casting process and its principal phenomena was developed. … Read more

On the support uml diagrams understanding during the software maintenance

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On the support uml diagrams understanding during the software maintenance Leszek Kotulski, Artur Basiura Department of Automatics, AGH – University of Science and Technology, al. Mickiewicza 30, Kraków, Poland,DRQ S.A., ul. Podwale 3, Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2007.3.0176 Abstract: “UML diagrams are generally accepted technique of supporting computing modeling and maintenance systems that are independent from … Read more

Frequency optimization based on “exact” sensitivity and fatigue life estimation

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Frequency optimization based on “exact” sensitivity and fatigue life estimation Tomasz Bednarek, Włodzimierz Sosnowski Institute of Fundamental Technological Research, PAS, Warsaw Kazimierz Wielki University, Bydgoszcz DOI: https://doi.org/10.7494/cmms.2007.2.0150 Abstract: In this paper the optimization of double – disk rotor shaft system based on sensitivity analysis followed by the fatigue life estimation of optimized shaft is considered. … Read more

Modelling of nanomaterials – sensitivity analysis to determine the nanoindentation test parameters

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Modelling of nanomaterials – sensitivity analysis to determine the nanoindentation test parameters Magdalena Kopernik, Danuta Szeliga Department of Modelling and Information Technology, Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Poland. DOI: https://doi.org/10.7494/cmms.2007.2.0152 Abstract: Analysis of nanomaterials is challenging in modeling and in experiments. Due to many difficulties in … Read more

A comparison of meshless and finite element approaches to ductile damage in forming processes

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A comparison of meshless and finite element approaches to ductile damage in forming processes Jose M. A. Cesar De Sa, Cai Zheng IDMEC-Institute for Mechanical Engineering, Faculty of Engineering, University of Porto,Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal. DOI: https://doi.org/10.7494/cmms.2007.2.0153 Abstract: In this work the ability and versatility of a meshless method, namely the … Read more

Weak and strong coupling of solvers in partitioned solution of solidification problems

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Weak and strong coupling of solvers in partitioned solution of solidification problems Arkadiusz Nagórka Częstochowa University of Technology, Institute of Computer and Information Sciences,ul. Dąbrowskiego 73, 42-200 Częstochowa, Poland. DOI: https://doi.org/10.7494/cmms.2007.2.0155 Abstract: In this paper a staggered scheme for partitioned solution of a coupled three-dimensional solidification problem is presented. Coupling is considered between several thermal … Read more