In this, work, metal inserts were joined with polyamide 6 by using the injection-molding technique. The metal parts, made of steel grade DC 04, were mechanically interlocked with polyamide 6 (PA6) by rivets as a mechanical connection between both components in the form of s polymer filling the holes in the metallic parts. The mechanical-interlocking joints made of steel/PA6 were mechanically tested in a tensile-lap-shear test. The damage behavior of the joined materials in relation to rivet number and position on the metal plate was studied. The observation of rivet deformation was also conducted by infrared IR thermography. The study showed that, for polymer–metal joined samples with fewer than three rivets, the destruction of rivets by shearing meant sample damage. On the other hand, when the polymer–metal joint was made with three or four rivets, the disruption mechanism was mostly related to the polymer part breaking. The maximal values of the joint’s failure force under tensile-shear tests were achieved for samples where three rivets were used. Moreover, strong correlation was found between the surface temperature of the samples and their maximal force during the tensile-lap-shear test.
The article explores the local history of the Silesian city of Oels as presented in selected early modern books and pamphlets published primarily in the local print shop, but also in other cities. A prominent example of such a historical event is the 1535 tempest, descriptions of which were published in its immediate aftermath. The much-later Beschreibung of 1657 is presented as an example of creating local identity through emphasizing two cultural aspects linked to the event: the alleged nefarious role of the Jewish community and the special relationship of the local citizens with the dukes of, at first, the Podebrad, and later the Württemberg families. Although natural disasters are repetitive occurrences, the 1535 tempest was understood by the people of Oels in a singular manner, which was characteristic for the local context. The thesis about the singularity of the local history is further corroborated through a number of examples from Oels. Different aspects of singularity dominate in different publications depicting local events: the singularity of situations, people and places.
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