Wydział Mechaniczny / Faculty of Mechanical Engineering / W1

Stały URI zbioruhttp://hdl.handle.net/11652/1

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2015 - 201922020 - 20211

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Autorsearch.filters.applied.operator.equals: search.filters.author.Czapski, PawełMa przypisane plikisearch.filters.applied.operator.equals: Tak

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Teraz wyświetlane 1 - 3 z 3
  • Pozycja
    Naprężenia badane pod supermikroskopem
    (Wydawnictwo Politechniki Łódzkiej, 2021) Czapski, Paweł
    Międzynarodowy zespół badawczy, w którego skład wchodzą prof. Tomasz Kubiak i jego doktorant mgr inż. Paweł Czapski z Katedry Wytrzymałości Materiałów i Konstrukcji Politechniki Łódzkiej we współpracy z University of Bath oraz Politechniką Lubelską otrzymał rekomendację do finansowania badań pt. Radiography and residual stress characterisation in thin-walled carbon fibre channel wykonanych przy użyciu synchrotronu Diamond Light Source w Wielkiej Brytanii
  • Pozycja
    Selected Problems of Determining Critical Loads in Sructures with Stable Post-Critical Behaviour.
    (Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics., 2016) Czapski, Paweł; Kubiak, Tomasz
    This paper presents selected cases of inapplicability of theory based methods of determining critical loads in thin – walled, composite tubes. 8th layered composite tubes with square cross-section were being subjected to static compression and in order to register experimental data two measuring equipment were employed: strain-gauges and Digital Image Correlation system ARAMIS R ⃝ . When measurement data were collected five different theory based methods were applied in order to determine critical loads. Cases where it was impossible to apply certain methods or some doubts about correctness of the results occurred were presented and analyzed. Moreover in cases where it was possible, the theory was equivalently transformed, in such a way to fit experimental data and calculate the critical loads.
  • Pozycja
    Experimental investigations of thin walled, squared cross – section composite tubes applied to static compression.
    (Wydział Mechaniczny. Katedra Wytrzymałości Materiałów i Konstrukcji. Politechnika Łódzka, 2015) Czapski, Paweł; Kubiak, T.
    This paper deals with the experimental investigations of thin-walled, squared crosssection composite tubes subjected to a static compression. The main purpose of this paper is to present and discuss different methods of data analysis while investigating stability of thin-walled structures. Performed experiments were conducted by employing Zwick/Roel universal test stand; non-contact, geometrical - optical principled system Aramis produced by GOM company and strain-gauge technique. Different methods of determining buckling loads were employed, discussed and compared. Moreover all problems, occurring during experiments and data analysis were emphasized in order to show what kind of difficulties could appear during processing the results of measurements. As an example, comparing non-dimensional strain-gauges data with dimensional non-contact system Aramis results of measurements can quoted.