Browsing by Subject "FEM analysis"

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Access status: Open Access ,
Monitoring of loads in arch support with wire strain gauge
(Wydawnictwa AGH, 2019) Woszczyński, Mariusz; Tokarczyk, Jarosław; Mazurek, Krzysztof; Pytlik, Andrzej
A concept of measuring the load and geometry of a roadway support with the use of vibrating wire strain gauges and draw-wire sensors is presented. Laboratory and in-situ tests of complete frames of arch supports under load were carried out within the INESI project. The deformations recorded by the vibrating wire strain gauges are similar to those recorded by the strain gauges. FEM strength calculations (which were similar to the results from the stand tests) were also presented.
Access status: Open Access ,
Thermo-mechanical analysis of piercing plug loads in the skew rolling process of thick-walled tube shell
(2006) Pater, Zbigniew; Kazanecki, Jan
This paper deals with the issue of numerical modelling of the piercing process of thick-walled tube shell in two-rolls skew rolling mill, which is equipped with guiding devices of Diescher type. After a short characteristic of the process, the worked out numerical model of this process is described. The numerical model considers e.g. thermal phenomena taking place in the metal during forming. Moreover, in this model tools were assumed as rigid bodies apart from the piercing plug which could be deformed in the elastic range. Applying the worked out FEM model, simulations of the piercing process in the skew rolling mill were made. The results of calculations were presented in the form of maps of: strains, stresses, temperatures and surface pressures.