cmms Tendencies and new requirements in the simulation of sheet metal forming processes Karl Roll, Klaus Wiegand Daimler AG, Germany. DOI: https://doi.org/10.7494/cmms.2009.1.0202 Abstract: The industrial forming simulation used today is the result of a development process during the last two decades. A main focus of this process was the continuous optimization to characterize the mate-rial properties. … Read more
Numerical modelling of the process of bimetallic bar rolling in a three-high skew rolling mill Sylwester Sawicki, Piotr Szota, Sebastian Mróz, Henryk Dyja Czestochowa University of Technology, Faculty of Materials Processing Technology and Applied Physics, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0218 Abstract: Bimetallic bars which possess higher corrosion resistance and mechanical properties, … Read more
Modeling and numerical simulation of elasto-viscoplastic anisotropic behavior of tantalum including the ductile damage effect Thomas Paris1,2, Khémaïs Saanouni1, Manuel Francois1, Damien Delaplanche2 1University of Technology of Troyes, ICD/LASMIS, CNRS, FRE 2848 BP 2060 10010 Troyes, France. 2CEA Valduc, LCSI 21120 Is-sur-Tille, France. DOI: https://doi.org/10.7494/cmms.2009.1.0203 Abstract: At room temperature, the tantalum is shown to exhibit … Read more
Prediction of forming limit in stretch flanging by finite element simulation combined with ductile fracture criterion Hirohiko Takuda1, Takayuki Hama1, Kazuki Nishida1, Tohru Yoshida2, Jun Nitta2 1Department of Energy Science and Technology, Kyoto University, 606-8501 Kyoto, Japan. 2Steel Research Laboratories, Nippon Steel Corporation, 293-8511 Futtsu, Japan. DOI: https://doi.org/10.7494/cmms.2009.1.0219 Abstract: In our previous studies, the limit … Read more
Interaction of penny-shaped crack and spherical inclusion in 3d particulate elastic composite: biem calculation of mode-i dynamic stress intensity factor Oksana Khay1, Viktor Mykhas’Kiv1, Jan Sladek2, Vladimir Sladek2, Chuanzeng Zhang3 1Pidstryhach Institute for Applied Problems of Mechanics and Mathematics NASU, 3-b Naukova Str., 79060 Lviv, Ukraine. 2Department of Mechanics, Institute of Construction and Architecture, 9 … Read more
On the forming and fracture limits of sheet metals Antti S. Korhonen1, Timo Manninen2, Jeong-Whan Yoon3 1Department of Materials Science and Engineering, Helsinki University of Technology. 2Outokumpu Stainless Oyj, Tornio Research Center. 3Alcoa Technical Center, Division of Materials Science. DOI: https://doi.org/10.7494/cmms.2009.1.0220 Abstract: The forming and fracture limits of stainless steel and aluminum were studied. Hydraulic … Read more
Failure modelling of friction stir welded joints in tensile tests Guido Borino1, Livan Fratini2, Francesco Parrinello1, Antonino Bulgarella2 1University of Palermo, Dipartimento di Ingegneria Strutturale e Geotecnica, Palermo, Italy. 2University of Palermo, Dipartimento di Tecnologia Meccanica, Produzione ed Ingegneria Gestionale, Palermo, Italy. DOI: https://doi.org/10.7494/cmms.2009.1.0205 Abstract: The paper concerns with the mechanical modelling and the finite … Read more
A new method for the evaluation of the yield criteria accuracy Liana Paraianu, Dorel Banabic Research Centre in Sheet Metal Forming Technologies – CERTETA,Technical University of Cluj-Napoca, C. Daicoviciu 15, 400020 Cluj-Napoca, Romania. DOI: https://doi.org/10.7494/cmms.2009.1.0221 Abstract: The paper presents a test used to estimate the predictive accuracy of a few yield criteria for anisotropic materials. … Read more
Using fuzzy numbers in fatigue reliability estimation Tomasz Bednarek1,2, Piotr Prokopowicz2, Włodzimierz Sosnowski1,2 1Institute of Fundamental Technological Research, PAN, Warsaw, Poland. 2Kazimierz Wielki University, Bydgoszcz, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0206 Abstract: Increasing safety requirements of structures induces necessity of taking into consideration the random nature of variables in the fatigue design. Fatigue analysis of real structures in … Read more
Determination of mechanical properties of the weld zone of tailor-welded blanks Jerzy Rojek1, Monika Hyrcza-Michalska2, Adam Bokota3, Wiesława Piekarska3 1Institute of Fundamental Technological Research, Warsaw, Poland. 2Politechnika Śląska, Katowice, Poland. 3Politechnika Częstochowska, Częstochowa, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0222 Abstract: The present paper presents different available methods to determine mechanical properties of the weld zone of tailorwelded blanks … Read more