Application Of Finite Element Analysis For Fracture And Damage Mechanics
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Finite Elements in Fracture Mechanics
Author: Meinhard Kuna
language: en
Publisher: Springer Science & Business Media
Release Date: 2013-07-19
Fracture mechanics has established itself as an important discipline of growing interest to those working to assess the safety, reliability and service life of engineering structures and materials. In order to calculate the loading situation at cracks and defects, nowadays numerical techniques like finite element method (FEM) have become indispensable tools for a broad range of applications. The present monograph provides an introduction to the essential concepts of fracture mechanics, its main goal being to procure the special techniques for FEM analysis of crack problems, which have to date only been mastered by experts. All kinds of static, dynamic and fatigue fracture problems are treated in two- and three-dimensional elastic and plastic structural components. The usage of the various solution techniques is demonstrated by means of sample problems selected from practical engineering case studies. The primary target group includes graduate students, researchers in academia and engineers in practice.
Application of Finite Element Analysis for Fracture and Damage Mechanics
"Application of Finite Element Analysis for Fracture and Damage Mechanics focuses on the finite element analysis of various material models and their relevant fracture and damage models using this advanced software. The book consists of three parts: Part I introduces the various material models, Part II highlights the finite element modeling of their relevant fracture parameters, and Part III deals with various material damage models. Each part begins with a simple problem with theoretical results compared with finite element results to help readers understand the numerical simulation results. Discusses material models such as composite, elastic, elastoplastic, and creep models. Covers fracture parameters like K, J, C*, and VCCT. Presents relevant material damage models (ductile, creep, and composite) Explores typical and complex problems, including the inclined crack model, penny shaped crack model, compact tension specimen, end-loaded split (ELS) model, double cantilever beam (DCB) model, and notched model. Includes all modeling files, such as APDL input files, Python code and creep damage subroutine, in the appendixes. Written for materials and mechanical engineers, this text addresses and provides solutions to the real-life engineering challenge of damage and fracture in materials and structures"--
Continuum Damage Mechanics
Author: Sumio Murakami
language: en
Publisher: Springer Science & Business Media
Release Date: 2012-02-24
Recent developments in engineering and technology have brought about serious and enlarged demands for reliability, safety and economy in wide range of fields such as aeronautics, nuclear engineering, civil and structural engineering, automotive and production industry. This, in turn, has caused more interest in continuum damage mechanics and its engineering applications. This book aims to give a concise overview of the current state of damage mechanics, and then to show the fascinating possibility of this promising branch of mechanics, and to provide researchers, engineers and graduate students with an intelligible and self-contained textbook. The book consists of two parts and an appendix. Part I is concerned with the foundation of continuum damage mechanics. Basic concepts of material damage and the mechanical representation of damage state of various kinds are described in Chapters 1 and 2. In Chapters 3-5, irreversible thermodynamics, thermodynamic constitutive theory and its application to the modeling of the constitutive and the evolution equations of damaged materials are descried as a systematic basis for the subsequent development throughout the book. Part II describes the application of the fundamental theories developed in Part I to typical damage and fracture problems encountered in various fields of the current engineering. Important engineering aspects of elastic-plastic or ductile damage, their damage mechanics modeling and their further refinement are first discussed in Chapter 6. Chapters 7 and 8 are concerned with the modeling of fatigue, creep, creep-fatigue and their engineering application. Damage mechanics modeling of complicated crack closure behavior in elastic-brittle and composite materials are discussed in Chapters 9 and 10. In Chapter 11, applicability of the local approach to fracture by means of damage mechanics and finite element method, and the ensuing mathematical and numerical problems are briefly discussed. A proper understanding of the subject matter requires knowledge of tensor algebra and tensor calculus. At the end of this book, therefore, the foundations of tensor analysis are presented in the Appendix, especially for readers with insufficient mathematical background, but with keen interest in this exciting field of mechanics.