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Thermodynamically consistent space-time discretization of non-isothermal mechanical systems in the framework of GENERIC
The present work addresses the design of structure-preserving numerical methods that emanate from the general equation for non-equilibrium reversible-irreversible coupling (GENERIC) formalism. Novel energy-momentum (EM) consistent time-stepping schemes in the realm of molecular dynamics are proposed. Moreover, the GENERIC-based structure-preserving numerical methods are extended to the context of large-strain thermoelasticity and thermo-viscoelasticity.
Characterisation and modelling of PC/ABS blends
The present work deals with the characterisation and multi-scale modelling of the large-strain response of ternary polymer blends. In a homogenised constitutive modelling approach, particularly the deformation behaviour featuring plastic dilatancy is investigated. Concerning the micromechanical modelling, constitutive models are proposed for the blends' individual phases and compared regarding their capabilities to capture the composition-dependent fracture toughness in unit cell models.
Multi-field modeling and simulation of fiber-reinforced polymers
This work proposes a new numerical approach for analyzing the behavior of fiber-reinforced materials, which have gained popularity in various applications. The approach combines theories and methods to model the fracture behavior of the polymeric matrix and the embedded fibers separately, and includes a modified plasticity model that considers the temperature-dependent growth of voids. Tests are conducted to explore different types and sequences of failure in long fiber-reinforced polymers.
EAS Elements for Solid Mechanics - Mesh Distortion Insensitive and Hourglassing-Free Formulations with Increased Robustness
Proposed in the early 1990s, the enhanced assumed strain (EAS) method is one of the probably most successful mixed finite element methods for solid mechanics. This cumulative dissertation gives a comprehensive overview of previous publications on that method and covers recent improvements for EAS elements. In particular, we describe three key issues of standard EAS elements and develop corresponding solutions.
Inverse dynamics of underactuated flexible mechanical systems governed by quasi-linear hyperbolic partial differential equations
This work is about the inverse dynamics of underactuated flexible mechanical systems governed by quasi-linear hyperbolic partial differential equations subjected to time-varying Dirichlet boundary conditions that are enforced by unknown, spatially disjunct, hence non-collocated Neumann boundary conditions.
Nature
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Copper Plate Photogravure
Copper Plate Photogravure describes in comprehensive detail the technique of traditional copper plate photogravure as would be practiced by visual artists using normally available facilities and materials. Attention is paid to step-by-step guidance through the many stages of the process. A detailed manual of technique, Copper Plate Photogravure also offers the history of the medium and reference to past alternative methods of practice. Copper Plate Photogravure: Demystifying the Process is part of the current revitalization of one of the most satisfyingly beautiful image-making processes. The range of ink color and paper quality possibilities is endless. The potential for handwork and altera...
Amandus Ivanschiz
The ensembles associated with monastery and parish churches were a very important element of musical life in Central Europe around the mid-eighteenth century. Yet the music created by early Classical composers, which constituted the core of their repertoire, remains poorly explored. Fr. Amandus Ivanschiz OSPPE (1727–1758) was one of such musicians, active in monasteries in Ranna, Wiener Neustadt, Rome, and Graz. Recent findings reveal that he died in 1758 at the young age of 31, which is much earlier than previously thought. Consequently, the dating of his compositions and their position in the context of the transformation of musical language in the middle of the eighteenth century needs to be revisited. This volume is the first to provide a critical evaluation of the attribution of works ascribed to Ivanschiz, which brought to light the true scope and reception of his oeuvre. The fact that there are nearly 300 copies of his works preserved in various archives across eleven European countries indicates that his music was readily performed and disseminated, and places Ivanschiz among the most popular monk-composers of his epoch. (From the Epilogue)
