Download or read book Croissance de l endommagement et volution du comportement des stratifi s carbone poxy en fonction des sollicitations written by Byung-Il Yoon and published by . This book was released on 1984 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comportement m canique en temp rature du pli l mentaire d un stratifi carbone epoxy written by Nadia Bahlouli and published by . This book was released on 1994 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail propose une extension, a des températures variant de 120c a +120c, des modèles d'endommagement des composites développes par p. Ladeveze. Ce modèle est développé pour les composites stratifies carbone/époxy, objet de notre étude, a l'échelle du pli élémentaire. Les applications visées concernent l'utilisation de ces matériaux pour garnir les panneaux de satellite géostationnaire. Outre des sollicitations mécaniques, ces structures sont alors soumises au cours de leur vie orbitale à un cyclage thermique. Par rapport aux études antérieures concernant le comportement en température et qui permettent de traiter des stratifies de type 0,90, on s'intéresse ici a la description du comportement en température de n'importe quel type de stratifie. Une première extension des modèles en temperature a été d'introduire les contraintes d'origine thermique et l'évolution des caractéristiques élastiques en fonction de la température. Pour utiliser les résultats de la littérature, une comparaison entre la densité de microfissures issues de modèles micromécaniques et les variables de type perte de rigidité provenant de modèle développé a l'échelle méso qui est celle du pli élémentaire est effectuée. Elle ne permet pas d'obtenir d'informations suffisamment précises mais laisse supposer que d'autres couplages thermomécaniques interviennent. L'identification complète du modèle d'endommagement avec couplages thermomécaniques a été réalisée en adaptant en température la méthodologie expérimentale d'essais mise au point lors de précédentes études menées au LMT sur ce modèle. Ces essais ont été réalisés au CNES-Toulouse et ont nécessité différents empilements (0#8, 0,90#2#s, 45#2#s, 67,5#2#s) testés à différentes températures (120c, 60c, 20c, 20c, 60c, 80c, 120c). Les résultats des essais et de l'identification montrent qu'une adaptation simple du modèle propose pour la température ambiante donne une description satisfaisante du comportement mécanique en température du pli élémentaire des stratifies carbone/époxy
Download or read book Composite Materials written by Jean-Marie Berthelot and published by Springer. This book was released on 2013-02-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical engineering, an engineering discipline borne of the needs of the in dustrial revolution, is once again asked to do its substantial share in the call for industrial renewal. The general call is urgent as we face profound issues of produc tivity and competitiveness that require engineering solutions, among others. The Mechanical Engineering Series features graduate texts and research monographs intended to address the need for information in contemporary areas of mechanical engineering. The series is conceived as a comprehensive one that covers a broad range of concentrations important to mechanical engineering graduate education and re search. We are fortunate to have a distinguished roster of consulting editors on the advisory board, each an expert in one of the areas of concentration. The names of the consulting editors are listed on the next page of this volume. The areas of concentration are applied mechanics, biomechanics, computational mechan ics, dynamic systems and control, energetics, mechanics of materials, processing, thermal science, and tribology.
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Download or read book Dynamic Behavior of Materials Volume 1 written by Bo Song and published by Springer. This book was released on 2015-10-23 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1 represents the first of nine volumes of technical papers presented at the Society for Experimental Mechanics SEM 15th International Congress & Exposition on Experimental and Applied Mechanics, held at Costa Mesa, California, June 8-11, 2015. The full set of proceedings also includes volumes on: Challenges in Mechanics of Time Dependent Materials, Advancement of Optical Methods in Experimental Mechanics, Experimental and Applied Mechanics 16th International Symposium on MEMS and Nanotechnology, 5th International Symposium on the Mechanics of Biological Systems and Materials, International Symposium on the Mechanics of Composite and Multi-functional Materials, Fracture, Fatigue, Failure and Damage Evolution; and Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems.
Download or read book Geology and Geotechnical Properties of Laterite Gravel written by Ellis L. Krinitzsky and published by . This book was released on 1976 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Composite Materials and Structures written by Mohamed Thariq Hameed Sultan and published by CRC Press. This book was released on 2022-08-31 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the gap between theoretical concepts and their implementations, especially for the high-performance structures/components related to advanced composite materials. This work focuses on the prediction of various structural responses such as deformations, natural frequencies etc. of advanced composites under complex environments and/or loading conditions. In addition, it discusses micro-mechanical material modeling of various advanced composite materials that involve different structures ranging from basic to advanced, such as beams, flat and curved panels, shells, skewed, corrugated, and other materials, as well as various solution techniques via analytical, semi-analytical, and numerical approaches. This book: Covers micro-mechanical material modeling of advanced composite materials Describes constitutive models of different composite materials and kinematic models of different structural configuration Discusses pertinent analytical, semi-analytical, and numerical techniques Focusses on structural responses relating to deformations, natural frequencies, and critical loads under complex environments Presents actual demonstrations of theoretical concepts as applied to real examples using Ansys APDL scripts This book is aimed at researchers, professionals, and graduate students in mechanical engineering, material science, material engineering, structural engineering, aerospace engineering, and composite materials.
Download or read book Mechanical Vibration written by William John Palm and published by . This book was released on 2007 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model, analyze, and solve vibration problems, using modern computer tools. Featuring clear explanations, worked examples, applications, and modern computer tools, William Palm's Mechanical Vibration provides a firm foundation in vibratory systems. You'll learn how to apply knowledge of mathematics and science to model and analyze systems ranging from a single degree of freedom to complex systems with two and more degrees of freedom. Separate MATLAB sections at the end of most chapters show how to use the most recent features of this standard engineering tool, in the context of solving vibration problems. The text introduces Simulink where solutions may be difficult to program in MATLAB, such as modeling Coulomb friction effects and simulating systems that contain non-linearities. Ample problems throughout the text provide opportunities to practice identifying, formulating, and solving vibration problems. KEY FEATURES Strong pedagogical approach, including chapter objectives and summaries Extensive worked examples illustrating applications Numerous realistic homework problems Up-to-date MATLAB coverage The first vibration textbook to cover Simulink Self-contained introduction to MATLAB in Appendix A Special section dealing with active vibration control in sports equipment Special sections devoted to obtaining parameter values from experimental data
Download or read book Traditional Conservation Practices in Africa written by Thierry Joffroy and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rammed Earth Structures written by Julian Keable and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ramming earth has been a method of construction for centuries in many parts of the world and the technique can produce buildings that are strong, durable, safe and desirable. Because earth is an abundant and cheap resource, rammed earth buildings are often very economical. To achieve the best results the right techniques for the selection and testing of soils must be used to protect walls from water damage and shrinkage. This book aims to show how high standards can be achieved and the criteria on which rammed earth structures and building techniques can be judged. Since the fi rst edition of this book was published, the standards described in Rammed Earth Structures has been adopted as a Building Standard in Zimbabwe. Further progress is being made extending the use of rammed earth as an officially sanctioned building material across all SADC countries. This book is now therefore becoming an important guide and resource for those wishing to employ this economical and low-carbon building material in the construction of public as well as private buildings in Africa and elsewhere. This book aims to show how high standards can be achieved and the criteria on which rammed earth structures and building techniques can be judged. An important guide and resource for those wishing to employ this economical and low-carbon building material in the construction of public as well as private buildings in Africa and elsewhere.
