Troubleshooting Finite Element Modeling With Abaqus

This book gives Abaqus users who make use of finite-element models in academic or practitioner-based research the in-depth program knowledge that allows them to debug a structural analysis model. The book provides many methods and guidelines for different analysis types and modes, that will help readers to solve problems that can arise with Abaqus if a structural model fails to converge to a solution. The use of Abaqus affords a general checklist approach to debugging analysis models, which can also be applied to structural analysis. The author uses step-by-step methods and detailed explanations of special features in order to identify the solutions to a variety of problems with finite-element models. The book promotes: • a diagnostic mode of thinking concerning error messages; • better material definition and the writing of user material subroutines; • work with the Abaqus mesher and best practice in doing so; • the writing of user element subroutines and contact features with convergence issues; and • consideration of hardware and software issues and a Windows HPC cluster solution. The methods and information provided facilitate job diagnostics and help to obtain converged solutions for finite-element models regarding structural component assemblies in static or dynamic analysis. The troubleshooting advice ensures that these solutions are both high-quality and cost-effective according to practical experience. The book offers an in-depth guide for students learning about Abaqus, as each problem and solution are complemented by examples and straightforward explanations. It is also useful for academics and structural engineers wishing to debug Abaqus models on the basis of error and warning messages that arise during finite-element modelling processing.

Finite Element Analysis Applications and Solved Problems using ABAQUS The main objective of this book is to provide the civil engineering students and industry professionals with straightforward step-by-step guidelines and essential information on how to use Abaqus(R) software in order to apply the Finite Element Method to variety of civil engineering problems. The readers may find this book fundamentally different from the conventional Finite Element Method textbooks in a way that it is written as a Problem-Based Learning (PBL) publication. Its main focus is to teach the user the introductory and advanced features and commands of Abaqus(R) for analysis and modeling of civil engineering problems. The book is mainly written for the undergraduate and graduate engineering students who want to learn the software in order to use it for their course projects or graduate research work. Moreover, the industry professionals in different fields of Finite Element Analysis may also find this book useful as it utilizes a step-by-step and straightforward methodology for each presented problem. In general, the book is comprised of eleven chapters, nine of which provide basic to advance knowledge of modeling the structural engineering problems; such as extracting beam internal forces, settlements, buckling analysis, stress concentrations, concrete columns, steel connections, pre-stressed concrete beams, steel plate shear walls, and, Fiber Reinforce Polymer (FRP) modeling. There also exist two chapters that depict geotechnical problems including a concrete retaining wall as well as the modeling and analysis of a masonry wall. Each chapter of this book elaborates on how to create the FEA model for the presented civil engineering problem and how to perform the FEA analysis for the created model. The model creation procedure is proposed in a step-by-step manner, so that the book provides significant learning help for students and professionals in civil engineering industry who want to learn Abaqus(R) to perform Finite Element modeling of the real world problems for their assignments, projects or research. The essential prerequisite technical knowledge to start the book is basic fundamental knowledge of structural analysis and computer skills, which is mostly met and satisfied for civil engineering students by the time that they embark on learning Finite Element Analysis. This publication is the result of the authors' teaching Finite Element Analysis and the Abaqus(R) software to civil engineering graduate students at Syracuse University in the past years. The authors hope that this book serves the reader as a straightforward self-study reference to learn the software and acquire the technical competence in using it towards more sophisticated real-world problems. -Hossein Ataei, PhD, PE, PEng University of Illinois at Chicago -Mohammadhossein Mamaghani, MS, EIT Syracuse University

This book aims to present specific complicated and puzzling challenges encountered for application of the Finite Element Method (FEM) in solving Structural Engineering problems by using ABAQUS software, which can fully utilize this method in complex simulation and analysis. Therefore, an attempt has been to demonstrate the all process for modeling and analysis of impenetrable problems through simplified step by step illustrations with presenting screenshots from software in each part and also showing graphs. Farzad Hejazi is the Associate Professor in the Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia (UPM), and a Senior Visiting Academic at the University of Sheffield, UK. Hojjat Mohammadi Esfahani,an expert on Finite Element Simulation,has more than 10 years of experience in the teaching and training of Finite Element packages, such as ABAQUS.

Developed from the author’s graduate-level course on advanced mechanics of composite materials, Finite Element Analysis of Composite Materials with AbaqusTM shows how powerful finite element tools address practical problems in the structural analysis of composites. Unlike other texts, this one takes the theory to a hands-on level by actually solving problems. It explains the concepts involved in the detailed analysis of composites, the mechanics needed to translate those concepts into a mathematical representation of the physical reality, and the solution of the resulting boundary value problems using the commercial finite element analysis software Abaqus. The first seven chapters provide material ideal for a one-semester course. Along with offering an introduction to finite element analysis for readers without prior knowledge of the finite element method (FEM), these chapters cover the elasticity and strength of laminates, buckling analysis, free edge stresses, computational micromechanics, and viscoelastic models and composites. Emphasizing hereditary phenomena, the book goes on to discuss continuum and discrete damage mechanics as well as delaminations. More than 50 fully developed examples are interspersed with the theory, more than 75 exercises are included at the end of each chapter, and more than 50 separate pieces of Abaqus pseudocode illustrate the solution of example problems. The author’s website offers the relevant Abaqus and MATLAB® model files available for download, enabling readers to easily reproduce the examples and complete the exercises. The text also shows readers how to extend the capabilities of Abaqus via "user subroutines" and Python scripting.

Developed from the author’s course on advanced mechanics of composite materials, Finite Element Analysis of Composite Materials with Abaqus® shows how powerful finite element tools tackle practical problems in the structural analysis of composites. This Second Edition includes two new chapters on "Fatigue" and "Abaqus Programmable Features" as well as a major update of chapter 10 "Delaminations" and significant updates throughout the remaining chapters. Furthermore, it updates all examples, sample code, and problems to Abaqus 2020. Unlike other texts, this one takes theory to a hands-on level by actually solving problems. It explains the concepts involved in the detailed analysis of composites, the mechanics needed to translate those concepts into a mathematical representation of the physical reality, and the solution of the resulting boundary value problems using Abaqus. The reader can follow a process to recreate every example using Abaqus graphical user interface (CAE) by following step-by-step directions in the form of pseudo-code or watching the solutions on YouTube. The first seven chapters provide material ideal for a one-semester course. Along with offering an introduction to finite element analysis for readers without prior knowledge of the finite element method, these chapters cover the elasticity and strength of laminates, buckling analysis, free edge stresses, computational micromechanics, and viscoelastic models for composites. Emphasizing hereditary phenomena, the book goes on to discuss continuum and discrete damage mechanics as well as delaminations and fatigue. The text also shows readers how to extend the capabilities of Abaqus via "user subroutines" and Python scripting. Aimed at advanced students and professional engineers, this textbook features 62 fully developed examples interspersed with the theory, 82 end-of-chapter exercises, and 50+ separate pieces of Abaqus pseudo-code that illustrate the solution of example problems. The author’s website offers the relevant Abaqus and MATLAB model files available for download, enabling readers to easily reproduce the examples and complete the exercises: https://barbero.cadec-online.com/feacm-abaqus/index.html. Video recording of solutions to examples are available on YouTube with multilingual captions.

Focusses on solving problems in the Structural Dynamics using ABAQUS Software. Helps analyze and model different types of structures with various dynamic and cyclic loads. Discusses simulation of irregular-shaped objects composed of several different materials with multipart boundary conditions. Includes application of various load effects to the developed structural models in ABAQUS Software. Covers broad array of applications such as bridges, offshores, dam, seismic resistant systems, and so forth.

This textbook demonstrates the application of the finite element philosophy to the solution of real-world problems and is aimed at graduate level students, but is also suitable for advanced undergraduate students. An essential part of an engineer’s training is the development of the skills necessary to analyse and predict the behaviour of engineering systems under a wide range of potentially complex loading conditions. Only a small proportion of real-life problems can be solved analytically, and consequently, there arises the need to be able to use numerical methods capable of simulating real phenomena accurately. The finite element (FE) method is one such widely used numerical method. Finite Element Applications begins with demystifying the ‘black box’ of finite element solvers and progresses to addressing the different pillars that make up a robust finite element solution framework. These pillars include: domain creation, mesh generation and element formulations, boundary conditions, and material response considerations. Readers of this book will be equipped with the ability to develop models of real-world problems using industry-standard finite element packages.

"This book introduces the theory of the finite element method using a balanced approach between its mathematical formulations and programming implementation. The computer implementation is carried out using MATLAB, while the practical applications are carried out in both MATLAB and Abaqus. All of the key steps are presented in great detail. MATLAB will allow the reader to focus on the finite element method by alleviating the programming burden. Detailed step-by-step procedures for solving sample problems with Abaqus interactive and keyword editions are provided at the end of each chapter"--