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Fracture Mechanics

Author: Alan T. Zehnder
Publisher: Springer Science & Business Media
ISBN: 9400725949
Size: 53.39 MB
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Fracture mechanics is a vast and growing field. This book develops the basic elements needed for both fracture research and engineering practice. The emphasis is on continuum mechanics models for energy flows and crack-tip stress- and deformation fields in elastic and elastic-plastic materials. In addition to a brief discussion of computational fracture methods, the text includes practical sections on fracture criteria, fracture toughness testing, and methods for measuring stress intensity factors and energy release rates. Class-tested at Cornell, this book is designed for students, researchers and practitioners interested in understanding and contributing to a diverse and vital field of knowledge.

Constitutive Models For Rubber X

Author: Alexander Lion
Publisher: CRC Press
ISBN: 1351840398
Size: 19.26 MB
Format: PDF, Kindle
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In order to develop innovative products, to reduce development costs and the number of prototypes and to accelerate development processes, numerical simulations become more and more attractive. As such, numerical simulations are instrumental in understanding complicated material properties like chemical ageing, crack propagation or the strain- and temperature-induced crystallisation of rubber. Therefore, experimentally validated and physically meaningful constitutive models are indispensable. Elastomers are used for products like tyres, engine and suspension mounts or seals, to name a few. The interest in modelling the quasi-static stress-strain behaviour was dominant in the past decades, but nowadays the interests also include influences of environmental conditions. The latest developments on the material behaviour of elastomers are collected in the present volume. Constitutive Models for Rubber X is a comprehensive compilation of nearly all oral and poster contributions to the European Conference on Constitutive Models for Rubber (Munich, 28-31 August 2017). The 95 highly topical contributions reflect the state of-the-art in material modelling and testing of elastomers. They cover the fields of material testing and processing, filler reinforcement, electromagnetic sensitive elastomers, dynamic properties, constitutive modelling, micromechanics, finite element implementation, stress softening, chemical ageing, fatigue and durability. In the area of rubbery materials and structures, applied research will play an important role also in the coming decades. Constitutive Models for Rubber X is of interest to developers and researchers involved in the rubber processing and CAE software industries, as well as for academics in nearly all disciplines of engineering and material sciences.

Bruchmechanik

Author: Dietmar Gross
Publisher: Springer-Verlag
ISBN: 3662467372
Size: 75.16 MB
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Das Lehrbuch führt in die grundlegenden Prinzipien und Arbeitsmethoden der Bruchmechanik und Mikromechanik ein. Im Vordergrund steht die mechanische Beschreibung von Bruchvorgängen, wobei auch materialspezifische Aspekte diskutiert werden. Auf die Behandlung von kontinuumsmechanischen und phänomenologischen Grundlagen folgt ein Einblick in die klassischen Bruch- und Versagenshypothesen sowie in makro- und mikroskopische Phänomene des Bruchs. Ein umfangreicher Teil ist der linearen und elastisch-plastischen Bruchmechanik gewidmet. Weitere Themen sind die Kriechbruchmechanik, Bruchdynamik, Schädigungsmechanik sowie die probabilistische Bruchmechanik. Eine Einführung in die Mikromechanik und die Homogenisierung elastischer, elastisch-plastischer und thermoelastischer Materialien ergänzt das Werk. Die 6. Auflage enthält zahlreiche Erweiterungen, unter anderem auch zu Aspekten der numerischen Behandlung bruchmechanischer Probleme.

Nonsmooth Mechanics Of Solids

Author: Jaroslav Haslinger
Publisher: Springer Science & Business Media
ISBN: 3211482431
Size: 13.35 MB
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Nonsmooth mechanics is a relatively complex field and requires a good knowledge of mechanics as well as a good background in some parts of modern mathematics. The present volume of lecture notes follows a very successful advanced school, with the aim to cover as much as possible all these aspects. It includes contributions that cover mechanical aspects as well as the mathematical and numerical treatment.

Boundary Element Advances In Solid Mechanics

Author: Dimitri Beskos
Publisher: Springer
ISBN: 3709127904
Size: 71.89 MB
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This volume presents and discusses recent advances in boundary element methods and their solid mechanics applications. It illustrates these methods in their latest forms, developed during the last five to ten years, and demonstrates their advantages in solving a wide range of solid mechanics problems.

Extended Finite Element Method For Fracture Analysis Of Structures

Author: Soheil Mohammadi
Publisher: Wiley-Blackwell
ISBN: 9781405170604
Size: 18.35 MB
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This important textbook provides an introduction to the concepts of the newly developed extended finite element method (XFEM) for fracture analysis of structures, as well as for other related engineering applications. One of the main advantages of the method is that it avoids any need for remeshing or geometric crack modelling in numerical simulation, while generating discontinuous fields along a crack and around its tip. The second major advantage of the method is that by a small increase in number of degrees of freedom, far more accurate solutions can be obtained. The method has recently been extended to nonlinear materials and other disciplines such as modelling contact and interface, simulation of inclusions and holes, moving and changing phase problems, and even to multiscale analyses. The book is self contained, with summaries of both classical and modern computational techniques. The main chapters include a comprehensive range of numerical examples describing various features of XFEM.

Identification Of Damage Using Lamb Waves

Author: Zhongqing Su
Publisher: Springer Science & Business Media
ISBN: 1848827849
Size: 40.93 MB
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Lamb waves are guided waves that propagate in thin plate or shell structures. There has been a clear increase of interest in using Lamb waves for identifying structural damage, entailing intensive research and development in this field over the past two decades. Now on the verge of maturity for diverse engineering applications, this emerging technique serves as an encouraging candidate for facilitating continuous and automated surveillance of the integrity of engineering structures in a cost-effective manner. In comparison with conventional nondestructive evaluation techniques such as ultrasonic scanning and radiography which have been well developed over half a century, damage identification using Lamb waves is in a stage of burgeoning development, presenting a number of technical challenges in application that need to be addressed and circumvented. It is these two aspects that have encouraged us to write this book, with the intention of consolidating the knowledge and know-how in the field of Lamb-wave-based damage identification, and of promoting widespread attention to mature application of this technique in the practical engineering sphere. This book provides a comprehensive description of key facets of damage identification technique using Lamb waves, based on the authors’ knowledge, comprehension and experience, ranging from fundamental theory through case studies to engineering applications.

Nichtlineare Finite Elemente Analyse Von Festk Rpern Und Strukturen

Author: René de Borst
Publisher: John Wiley & Sons
ISBN: 3527678026
Size: 55.78 MB
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Echte Ingenieursprobleme sind intrinsisch nichtlinear. Kennnisse der nichtlinearen Finiten-Elemente-Analyse sind für Maschinenbauer, Bauingenieure und Werkstofftechniker daher unabdingbar. Mit ihrer Hilfe lassen sich mechanische Festigkeitsberechnungen durchführen, zeit- und kostenintensive Tests bei der Produktentwicklung werden so reduziert. Didaktisch schlüssig vom Modell und dessen theoretischer Durchdringung bis zum Algorithmus und dessen praktischer Implementierung bietet dieses Buch eine Einführung in die nichtlineare Finite-Elemente-Analyse ? leicht zugänglich, kompakt und auf die technische Ausrichtung fokussiert: - mathematische und kontinuumsmechanische Grundlagen, Lösungstechniken für nichtlineare Probleme in der statischen und dynamischen Analyse - erste Einblicke in geometrische Nichtlinearitäten - Schädigung, Plastizität und zeitabhängige Nichtlinearitäten - Plastizität von Balken, Bögen und Schalen - elastische und elastoplastische Finite-Elemente-Analyse großer Dehnungen - Einführung in moderne Diskretisierungskonzepte Hilfreich fürs Bestehen von Prüfungen sind die Beispiele im frei erhältlichen Finite-Elemente-Code auf Python?-Basis. Das dazugehörige Hintergrundwissen macht den User mit den Möglichkeiten und Grenzen moderner Finite-Elemente-Software vertraut. Der ideale Einstieg in die nichtlineare Finite-Elemente-Analyse für Studenten und Praktiker ? mit so viel Mathematik wie nötig und so vielen realen Ingenieursproblemen wie möglich. Mit Beispielen im Finite-Elemente-Code auf Python?-Basis unter: www.wiley-vch.de

Proceedings Of The International Conference On Advances In Computational Mechanics 2017

Author: Hung Nguyen-Xuan
Publisher: Springer
ISBN: 9811071497
Size: 42.35 MB
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This book provides an overview of state-of-the-art methods in computational engineering for modeling and simulation. This proceedings volume includes a selection of refereed papers presented at the International Conference on Advances in Computational Mechanics (ACOME) 2017, which took place on Phu Quoc Island, Vietnam on August 2-4, 2017. The contributions highlight recent advances in and innovative applications of computational mechanics. Subjects covered include: biological systems; damage, fracture and failure; flow problems; multiscale multiphysics problems; composites and hybrid structures; optimization and inverse problems; lightweight structures; computational mechatronics; computational dynamics; numerical methods; and high-performance computing. The book is intended for academics, including graduate students and experienced researchers interested in state-of-the-art computational methods for solving challenging problems in engineering.