5,555 research outputs found

    Oratio solennis ipsa Caroli feria, anno M.D.C.XXIII, super canonisatione Ignatii Loiolae et Francisci Xaverii Iesuitarum

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    publice habita a Io. Rodolpho Lavatero Tigurino ...Widmungsbrief des Autors an Johannes Guler von Wyneck auf Bl. A2rBogensignaturen: A-E

    Veltlein, das ist, chorographische, unnd historische Beschreibung dess Veltleins, der Herrschafft Worms, und der Graffschafft Cleven : alles kurtz zusammen gezogen, auss den aussführlichen Verzeichnussen raetischer Sachen Johan Gulers von Weineck Ritters etc. ...

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    durch Johan Petern seinen Sohn, zu sonderem Nutz und Ergetzlichkeit derjenigen, die ..., etwas Berichts, von Beschaffenheit gedachter Landen zu haben begerenDigitalisat von E-Rar

    Iohan Guler von Weineck : Nat. 1562. Denat. 1637. Deo Patrae et Amicis

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    Porträt von Johann Guler von Weineck (1562-1637)H. Lips sculp.Handschriftliche Notiz auf dem Blatt "Brun, II, 89"Auf Unterlagenblatt und Rückseite des Blattes Nummerierung nach Lips' Inventarisierung übernommen: Nr. 906, Album IIDatierung gemäss Lips' chronologischem Inventa

    Raetia, das ist: aussführliche und wahrhaffte Beschreibung der dreyen Loblichen Grawen Bündten und anderer Retischen Völcker : Darinnen erklärt werden dero aller Begriff, Härkommen, Thaaten, Regiment, Sitten, Übungen, Verenderungen, und was sonst gedenckwürdiges bey ihnen, im geistlichen und weltlichen Stand in Fried und Krieg von Zeit zu Zeit sich zuogetragen hat

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    alles mit grossem Fleiss und guoter Treüw an Tag geben durch Johansen Guler von Weineck ... : darzuo seind kommen etliche wolgestelte neüwe Landtafeln, sampt viler Kaysern, Königen, Fürsten, Grafen, Herren uff Adelspersonen, Waapen und Stammbäumen, auch dero und anderer Sachen eigentlichen BildtnussenImpressum gemäss KolophonDruckermarkeKupfertitelExlibrisetikette: "Aus der Bibliothek von Oberstdivisionär Eugen Bircher..." 002125367_0001 Exemplar der ETH-BI

    Fürstenau

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    Photogr. u. Verlag J. GulerPoststempel: 25.10.190

    Couple stress effects in a thin film bonded to a half-space

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    This study investigates the contact mechanics of a thin film laying on an elastic substrate within the context of couple-stress elasticity. It aims to introduce the effects of material internal length scale, which has proven an effective way of modeling structures at micro to nano-scales, allowing to capture their size dependent behavior. Specifically, stress analysis for a thin film bonded to a couple stress elastic half-space is considered under plane strain loading conditions by assuming that both shear stress and couple tractions are exchanged between the thin film and the substrate. The problem is converted to a singular integral equation, which is solved by expanding the shear stress tractions as a Chebyshev series. The results show that the introduction of couple tractions decreases the shear stress tractions and the axial load in the thin film. When the characteristic length is sufficiently small, but still finite, the results for classical elastic behavior are approached

    Indentation of a free beam resting on an elastic substrate with an internal lengthscale

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    The plane strain problem of a slender and weightless beam-plate loaded by a transversal point force in unilateral contact with a couple stress elastic foundation is investigated. The study aims to explore the consequences of the material internal lengthscale on the contact mechanics. In particular, compatibility between the beam and the foundation surface demands that both displacement and rotation match along the contact line. To this aim, couple tractions are exchanged besides the traditional contact pressure until separation between the beam and the foundation occurs. The problem is formulated making use of the Green's functions for a point force and a point couple acting atop of a couple stress elastic half-plane. A pair of coupled integral equations is thus derived, that governs the distribution of contact pressure and couple tractions, with one of them being immediately solved to provide an explicit relation between the two unknowns. In this sense, we retrieve the concept of a mechanically equivalent action, as it is the case of the Kirchhoff shear for plates. The remaining integral equation sets a cubic eigenvalue problem, whose linear term accounts for the microstructure. Its numerical solution is sought by expanding the equivalent contact pressure in series of Chebyshev polynomials vanishing at the contact region ends points, namely the lift-off points, and then applying a collocation strategy. The contact length, the distributions of contact pressure and couple tractions under the beam and the shearing force and bending moment along the beam are then obtained as a function of the material characteristic length. Results clearly indicate that accounting for the material internal lengthscale is mainly realized through exchange of the couple tractions, in the lack of which results much resemble those of the classical solution. Specifically, greater contact lengths and a stronger focusing effect about the loading point are encountered, which become very significant when the contact length approaches the internal lengthscale
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