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At present, the design of unstiffened, welded circular hollow section (CHS) joints made of stainless steels is insufficiently regulated since all available design rules are based upon results of investigations on CHS joints made of unalloyed and low-alloy structural steels. This work deals with the load-bearing capacity of uniplanar CHS X-joints made of stainless steels under predominantly static axial loading. A design concept for these type of joints was developed.

X-joints --- KHP --- statischCHS --- static --- stainless steels --- Axialbeanspruchung --- axial loading --- X-Knoten --- nichtrostende Stähle

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This research topic is focused on recent advances in our understanding of effects of mechanical loading on the skeleton, and research methods used in addressing these. Though it is well established that mechanical loading provides an essential stimulus for skeletal growth and maintenance, there have been major advances recently in terms of our understanding of the molecular pathways involved, which are thought to provide novel drug targets for treating osteoporosis. The articles included in this topic encompass the full spectrum of laboratory and clinical research, and range from review articles, editorials, hypothesis papers and original research articles. Together, they demonstrate how mechanical loading underpins many aspects of bone biology, including the pathogenesis and treatment of osteoporosis and other clinical disorders associated with skeletal fragility.

mechanical loading --- bone architecture --- accelerometers --- osteoblast --- osteoporosis --- osteoclast --- fractures --- distraction osteogenesis

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Materials --- Matériaux --- Dynamic testing --- Essais dynamiques --- -Engineering --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Dynamic testing. --- -Dynamic testing --- Matériaux --- Dynamic loading (Materials) --- Loading, Dynamic (Materials) --- Loads, Dynamic (Materials) --- Testing --- Structure

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Materials --- Compression testing. --- Dynamic testing. --- Dynamic loading (Materials) --- Loading, Dynamic (Materials) --- Loads, Dynamic (Materials) --- Dynamic testing --- Compression strength testing of materials --- Compression testing of materials --- Compressive strength testing of materials --- Compressive testing of materials --- Testing

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High-speed impact dynamics is of interest in the fundamental sciences, e.g., astrophysics and space sciences, and has a number of important applications in military technologies, homeland security and engineering. When compared with experiments or numerical simulations, analytical approaches in impact mechanics only seldom yield useful results. However, when successful, analytical approaches allow us to determine general laws that are not only important in themselves but also serve as benchmarks for subsequent numerical simulations and experiments. The main goal of this monograph is to demonstrate the potential and effectiveness of analytical methods in applied high-speed penetration mechanics for two classes of problem. The first class of problem is shape optimization of impactors penetrating into ductile, concrete and some composite media. The second class of problem comprises investigation of ballistic properties and optimization of multi-layered shields, including spaced and two-component ceramic shields. Despite the massive use of mathematical techniques, the obtained results have a clear engineering meaning and are presented in an easy-to-use form. One of the chapters is devoted solely to some common approximate models, and this is the first time that a comprehensive description of the localized impactor/medium interaction approach is given. In the monograph the authors present systematically their theoretical results in the field of high-speed impact dynamics obtained during the last decade which only partially appeared in scientific journals and conferences proceedings.

Penetration mechanics. --- Deformations (Mechanics) --- Structural dynamics. --- Materials --- Dynamic testing. --- Dynamic loading (Materials) --- Loading, Dynamic (Materials) --- Loads, Dynamic (Materials) --- Dynamic testing --- Building dynamics --- Dynamics, Structural --- Structural vibration --- Strains and stresses --- Structural analysis (Engineering) --- Elastic solids --- Mechanics --- Rheology --- Structural failures --- Ballistics --- Fracture mechanics --- Impact --- Mechanics, Applied --- Testing --- Mechanical engineering. --- Mechanics. --- Mechanics, Applied. --- Engineering design. --- Engineering mathematics. --- Mechanical Engineering. --- Solid Mechanics. --- Engineering Design. --- Mathematical and Computational Engineering. --- Engineering --- Engineering analysis --- Mathematical analysis --- Design, Engineering --- Industrial design --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics --- Classical mechanics --- Newtonian mechanics --- Physics --- Dynamics --- Quantum theory --- Machinery --- Steam engineering --- Mathematics --- Design --- Applied mathematics.