This book elucidates the fundamental thermomechanical behaviour inherent in the 3D printing process within a laser-based powder bed fusion (L-PBF) system. It presents foundational concepts and provides in-depth derivations of the governing equations. The analysis encompasses arbitrary anisotropic linear viscoelastic materials, accounting for thermal effects. The authors leverage the theory of axially moving materials, a framework previously employed in the analysis of production processes within the process industry. They introduce a coordinate frame that moves in tandem with the printing laser, adopting an Eulerian perspective towards the in-motion solid. Designed for graduate students and researchers, this book is poised to foster a profound comprehension and spur innovative technological advancements in the realm of additive manufacturing.
This open access book is the first book that attempts to treat the notion of articulation as an important concept to be added to the lexicon of communication studies and social science. It constitutes the first comprehensive and systematic discussion of ‘articulation’ in English, providing an introduction of its usages and what has occurred on its ‘travels’ from one theoretical realm to another in political philosophy, structural linguistics, new economic anthropology, cultural studies and post-Marxist discourse theory. The proposed research takes a relational approach to society and social action in a way that recognises their relative autonomy. It entails an introduction of the ‘discursive turn’ in the imagery of society and social change, thereby proving that the relational concept of articulation/Gliederung has potential to consider society as both a structured, complex whole and a product of human interaction.
This Element traces the origins and development of bioethics, the principles and values involved in the discipline, and the roles of justice among these principles and values. The main tasks given to the concept of justice have since the late 1970s been nondiscrimination in research, prioritization in medical practice, and redistribution in healthcare. The Element argues that in a world challenged by planet-wide political and environmental threats this is not sufficient. The nature and meaning of justice has to be rethought. The Element does this by dissecting current bioethical approaches in the light of theories of justice as partly clashing interpretations of equality. The overall findings are twofold. Seen against the background of global concerns, justice in bioethics has become a silent guardian of economic sustainability. Seen against the same background, we should set our aims higher. Justice can, and must, be put to better use than it presently is. This title is also available as Open Access on Cambridge Core.
This book elucidates the fundamental thermomechanical behaviour inherent in the 3D printing process within a laser-based powder bed fusion (L-PBF) system. It presents foundational concepts and provides in-depth derivations of the governing equations. The analysis encompasses arbitrary anisotropic linear viscoelastic materials, accounting for thermal effects. The authors leverage the theory of axially moving materials, a framework previously employed in the analysis of production processes within the process industry. They introduce a coordinate frame that moves in tandem with the printing laser, adopting an Eulerian perspective towards the in-motion solid. Designed for graduate students and researchers, this book is poised to foster a profound comprehension and spur innovative technological advancements in the realm of additive manufacturing.
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