- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 31 to 34 of 34 (0.088 seconds)Spelling suggestions: "subject:"E. bruch"" "subject:"E. cruch""
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From Repudiation to Rapprochement: The ‘Centralverein deutscher Staatsbürger jüdischen Glaubens’ and its relationship with Zionism in the Weimar RepublicJohnson, Sarah R. 06 December 2019 (has links)
No description available.
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| 32 |
“[We] have shed our European mendtality” - Identitätskonstruktionen in Memoiren aus Deutschland in die USA geflohener Jüdinnen und JudenRönneburg, Vivien 17 June 2020 (has links)
No description available.
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| 33 |
Phase-field modeling of brittle fracture along the thickness direction of plates and shellsAmbati, Marreddy, Heinzmann, Jonas, Seiler, Martha, Kästner, Markus 22 January 2024 (has links)
The prediction of fracture in thin-walled structures is decisive for a wide range of applications. Modeling methods such as the phase-field method usually consider cracks to be constant over the thickness which, especially in load cases involving bending, is an imperfect approximation. In this contribution, fracture phenomena along the thickness direction of structural elements (plates or shells) are addressed with a phase-field modeling approach. For this purpose, a new, so called “mixed-dimensional” model is introduced, which combines structural elements representing the displacement field in the two-dimensional shell midsurface with continuum elements describing a crack phase-field in the three-dimensional solid space. The proposed model uses two separate finite element discretizations, where the transfer of variables between the coupled twoand three-dimensional fields is performed at the integration points which in turn need to have corresponding geometric locations. The governing equations of the proposed mixed-dimensional model are deduced in a consistent manner from a total energy functional with them also being compared to existing standard models. The resulting model has the advantage of a reduced computational effort due to the structural elements while still being able to accurately model arbitrary through-thickness crack evolutions as well as partly along the thickness broken shells due to the continuum elements. Amongst others, the higher accuracy aswell as the numerical efficiency of the proposed model are tested and validated by comparing simulation results of the new model to those obtained by standard models using numerous representative examples.
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Korngrenzsegregation in Silber-Nickel und Kupfer-Wismut Legierungen / Grain Boundary Segregation in Silver-Nickel and Copper-Bismuth AlloysWolde-Giorgis, Daniel 25 August 2005 (has links)
No description available.
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