Non-linear finite element analysis of solids and structures [[electronic resource] /] / René. de Borst ... [et al.]

• Record Nr.: UNINA9910130738403321
• Pubbl/distr/stampa: Chichester, West Sussex, : Wiley, 2012
• ISBN: 1-283-64510-6; 1-118-37599-8; 1-118-37600-5; 1-118-37601-3; 1-118-37593-9
• Edizione: [2nd ed.]
• Descrizione fisica: 1 online resource (542 p.)
• Collana: Wiley Series in Computational Mechanics
• Classificazione: TEC006000
• Altri autori (Persone): BorstRené de
• Disciplina: 620.1; 624.171
• Soggetti: Finite element method - Data processing; Structural analysis (Engineering) - Data processing; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Non-linear Finite Element Analysis of Solids and Structures; Contents; Preface; Series Preface; Notation; About the Code; PART I: BASIC CONCEPTS AND SOLUTION TECHNIQUES; 1 Preliminaries; 1.1 A Simple Example of Non-linear Behaviour; 1.2 A Review of Concepts from Linear Algebra; 1.3 Vectors and Tensors; 1.4 Stress and Strain Tensors; 1.5 Elasticity; 1.6 The PyFEM Finite Element Library; References; 2 Non-linear Finite Element Analysis; 2.1 Equilibrium and Virtual Work; 2.2 Spatial Discretisation by Finite Elements; 2.3 PyFEM: Shape Function Utilities; 2.4 Incremental-iterative Analysis; 2.5 Load versus Displacement Control2.6 PyFEM: A Linear Finite Element Code with Displacement Control; References; 3 Geometrically Non-linear Analysis; 3.1 Truss Elements; 3.1.1 Total Lagrange Formulation; 3.1.2 Updated Lagrange Formulation; 3.1.3 Corotational Formulation; 3.2 PyFEM: The Shallow Truss Problem; 3.3 Stress and Deformation Measures in Continua; 3.4 Geometrically Non-linear Formulation of Continuum Elements; 3.4.1 Total and Updated Lagrange ; Formulations; 3.4.2 Corotational Formulation; 3.5 Linear Buckling Analysis; 3.6 PyFEM: A Geometrically Non-linear Continuum Element; References4 Solution Techniques in Quasi-static Analysis; 4.1 Line Searches; 4.2 Path-following or Arc-length Methods; 4.3 PyFEM: Implementation of Riks' Arc-length Solver; 4.4 Stability and Uniqueness in Discretised Systems; 4.4.1 Stability of a Discrete System; 4.4.2 Uniqueness and Bifurcation in a Discrete System; 4.4.3 Branch Switching; 4.5 Load Stepping and Convergence Criteria; 4.6 Quasi-Newton Methods; References; 5 Solution Techniques for Non-linear Dynamics; 5.1 The Semi-discrete Equations; 5.2 Explicit Time Integration; 5.3 PyFEM: Implementation of an Explicit Solver; 5.4 Implicit Time Integration5.4.1 The Newmark Family; 5.4.2 The HHT α-method; 5.4.3 Alternative Implicit Methods for Time Integration; 5.5 Stability and Accuracy in the Presence of Non-linearities; 5.6 Energy-conserving Algorithms; 5.7 Time Step Size Control and Element Technology; References; PART II: MATERIAL NON-LINEARITIES; 6 Damage Mechanics; 6.1 The Concept of Damage; 6.2 Isotropic Elasticity-based Damage; 6.3 PyFEM: A Plane-strain Damage Model; 6.4 Stability, Ellipticity and Mesh Sensitivity; 6.4.1 Stability and Ellipticity; 6.4.2 Mesh Sensitivity; 6.5 Cohesive-zone Models; 6.6 Element Technology: Embedded Discontinuities6.7 Complex Damage Models; 6.7.1 Anisotropic Damage Models; 6.7.2 Microplane Models; 6.8 Crack Models for Concrete and Other Quasi-brittle Materials; 6.8.1 Elasticity-based Smeared Crack Models; 6.8.2 Reinforcement and Tension Stiffening; 6.9 Regularised Damage Models; 6.9.1 Non-local Damage Models; 6.9.2 Gradient Damage Models; References; 7 Plasticity; 7.1 A Simple Slip Model; 7.2 Flow Theory of Plasticity; 7.2.1 Yield Function; 7.2.2 Flow Rule; 7.2.3 Hardening Behaviour; 7.3 Integration of the Stress-strain Relation; 7.4 Tangent Stiffness Operators
• Sommario/riassunto: Built upon the two original books by Mike Crisfield and their own lecture notes, renowned scientist René de Borst and his team offer a thoroughly updated yet condensed edition that retains and builds upon the excellent reputation and appeal amongst students and engineers alike for which Crisfield's first edition is acclaimed. Together with numerous additions and updates, the new authors have retained the core content of the original publication, while bringing an improved focus on new developments and ideas. This edition offers the latest insights in non-linear finite element technolo

Human-Computer Interaction [[electronic resource] ] : Thematic Area, HCI 2023, Held as Part of the 25th HCI International Conference, HCII 2023, Copenhagen, Denmark, July 23–28, 2023, Proceedings, Part I / / edited by Masaaki Kurosu, Ayako Hashizume

• Record Nr.: UNISA996542671003316
• Autore: Kurosu Masaaki
• Pubbl/distr/stampa: Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023
• ISBN: 3-031-35596-2
• Edizione: [1st ed. 2023.]
• Descrizione fisica: 1 online resource (631 pages)
• Collana: Lecture Notes in Computer Science, , 1611-3349 ; ; 14011
• Altri autori (Persone): HashizumeAyako
• Disciplina: 004.019
• Soggetti: User interfaces (Computer systems); Human-computer interaction; Computer networks; Image processing—Digital techniques; Computer vision; Application software; Artificial intelligence; User Interfaces and Human Computer Interaction; Computer Communication Networks; Computer Imaging, Vision, Pattern Recognition and Graphics; Computer and Information Systems Applications; Artificial Intelligence
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: Intro -- Foreword -- HCI International 2023 Thematic Areas and Affiliated Conferences -- List of Conference Proceedings Volumes Appearing Before the Conference -- Preface -- Human-Computer Interaction Thematic Area (HCI 2023) -- HCI International 2024 Conference -- Contents - Part I -- Design and Evaluation Methods, Techniques and Tools -- Co-creating User Journey Map - A Systematic Approach to Exploring Users' Day-to-Day Experience in Participatory Design Workshops -- 1 Introduction -- 2 Study Design -- 2.1 Workshop Participants and Locations -- 3 PD Workshop -- 3.1 ; Workshop 1: Learning NLP Technology -- 3.2 Workshop 2: Contextual Interview -- 3.3 Workshop 3: Creating the Journey Map -- 3.4 Workshop 4: Identifying Problems &amp -- Ideation -- 4 Findings -- 4.1 User Journey Map Generates Reflections -- 4.2 What They Also Learned from User Journey Map -- 4.3 Learning from Other Participants -- 4.4 Inspiration Brought by Brainwriting -- 5 Discussion -- 5.1 User Journey Map Enhanced Mutual Learning -- 5.2 Contradictory Reactions to the use of LEGO® -- 6 Conclusion -- References -- Integrate Gamification into Questionnaire Design -- 1 Introduction -- 1.1 Background and Motivation -- 1.2 Purpose -- 2 Methods -- 2.1 Preparation Phase -- 2.2 Investigation Phase -- 2.3 Analysis Phase -- 3 Results -- 3.1 Gamification Questionnaire and the Results of IPIP 50 -- 3.2 Gamification Questionnaire and Intrinsic Motivation -- 4 Discussion -- 5 Conclusion -- References -- Exploring the Tensions of Self-tracking Wearable Technologies Through Design -- 1 Introduction -- 2 Self-tracking Practices Mediated by Wearable Technologies -- 3 Self-tracking Research: Towards Data Analysis, Usability, and Utility -- 4 Widening the View: Scholarly Debate and Tensions of the Phenomenon -- 4.1 Allusion to Objectivity and Non-neutrality of Data.; 4.2 Data Reductionism and Complexity of Lived Phenomena -- 4.3 Trust in Data and Reliance on Subjective Experience -- 4.4 Performance and Wellbeing -- 4.5 Surveillance and Self-surveillance -- 5 Addressing the Tensions Through Design: Alternative Design Approaches to Solutionism -- 6 Conclusions -- References -- User Clustering Visualization and Its Impact on Motion-Based Interaction Design -- 1 Introduction -- 2 Background -- 2.1 Movement Feature Extraction -- 2.2 Movement and Feature Visualization -- 3 Prototype Implementation -- 3.1 Pose Estimation and Tracking in 3D Space -- 3.2 Feature Extraction System -- 3.3 Visualization Engine -- 4 Proposal Assessment -- 4.1 Participants -- 4.2 Interview Method -- 4.3 Analysis -- 5 Results -- 5.1 Understanding User Behavior -- 5.2 Refining Design Practice -- 5.3 Impact on the Full Design-Production Cycle -- 6 Discussion -- 7 Conclusion and Future Work -- References -- eGLU-Box Mobile: A Smartphone App for Usability Testing by Italian Public Administration Webmasters -- 1 Introduction -- 1.1 eGLU-box: From Its Inception to Today -- 2 Methods -- 2.1 Design -- 2.2 Material -- 2.3 Participants -- 2.4 Procedure -- 2.5 Data Analysis -- 3 Results -- 3.1 Participants' Performance -- 3.2 PCTA Interview -- 3.3 Usability Questionnaire -- 3.4 Eye Movement Analysis -- 4 Discussion and Conclusion -- References -- MobE - A New Approach to Mobile Ethnography -- 1 Mobile Ethnography -- 2 MobE - An Application for Ethnographic Research -- 3 Evaluation Methods and Test Procedure -- 3.1 Study 1: Mobile Ethnographic Study -- 3.2 Study 2: Contextual Interview -- 3.3 Results -- 4 Discussion -- 4.1 Gamification -- 4.2 Context -- 4.3 Comparison of Contextual Interview and Mobile Ethnography -- 4.4 Recommendation for Further Research in Mobile Ethnography -- 5 Summary -- References.; A Comparative Analysis of Institutional Ethical Codes of Conduct for the Practice of Design -- 1 Introduction -- 2 Why Ethics Matters -- 3 Methodology -- 3.1 Methodological Approach -- 3.2 Data Collection and Analysis -- 4 Results -- 5 Discussion -- 6 Conclusion and Future Work -- References -- Situation-Aware Adaptations for Individualized User Experience and Task Management Optimization -- 1 Introduction and Related Work -- 2 Adaptation Types in SitAdapt -- 3 The Different SitAdapt Adaptations -- 3.1 Changes in Design and Layout -- 3.2 Changes in Content -- 3.3 Changes of Media and Interaction Object Types -- 3.4 Technical Realization of the Adaptation Process -- 4 Task-Management Optimization and Adaptation Control -- 5 ; Conclusion and Future Work -- References -- Barrier-Free Design Leaf Vein Model for People with Disabilities -- 1 Introduction -- 1.1 Research Background -- 1.2 Research Status -- 1.3 Research Objective -- 2 Research Method -- 2.1 Barrier-Free Design Questionnaire for Professional Designers -- 2.2 Virtual User Models and Virtual Scenarios -- 3 Research Results -- 3.1 Questionnaire Results -- 3.2 Virtual User Model and Virtual Scenario Experiment Results -- 4 Barrier-Free Design Leaf Vein Model -- 4.1 Functionality Element -- 4.2 Applicability and Balance Element -- 4.3 Human-Computer Interaction Ergonomics Element -- 4.4 Emotionalization Element -- 4.5 Attribution and Circular Unity Elements -- 5 Research Cases -- 5.1 Tableware Series Barrier-Free Designed for Diabetic Patients -- 5.2 Designing for Special Groups - Accessible Urban Public Service System -- 6 Conclusion -- References -- Research on the Design of Online Participatory Design Workshop Platform Under Metaphor Design -- 1 Introduction -- 2 Related Work -- 2.1 Card-Based Design Tools in Participatory Design Workshop -- 2.2 Metaphor Design in Human-Computer Interface.; 3 Design -- 3.1 Concept Metaphor Design -- 3.2 Function Metaphor Design -- 3.3 Behavior Metaphor Design -- 4 Usability Test -- 4.1 Participants -- 4.2 Results -- 5 Discussion -- 5.1 Promoting Communication -- 5.2 Inspiring Creativity -- 5.3 Increasing Engagement -- 6 Conclusion -- References -- Research on Elements of Physical Interaction Design and the Information Channel -- 1 Introduction -- 1.1 Research Background -- 1.2 Problem Statement -- 2 Related Work on Physical Interaction -- 3 Concept Definition -- 3.1 Physical -- 3.2 Interaction -- 3.3 Physical Interaction -- 3.4 Physical Interaction Design -- 4 Research Methods and Research Design -- 4.1 Research Methods and Tools -- 4.2 Research Design -- 5 Procedures and Results -- 5.1 Preparation -- 5.2 Data Collection and Analysis -- 6 Discussion and Conclusion -- 7 Future Work -- References -- Work Characteristics as Determinants of Remote Working Acceptance: Integrating UTAUT and JD-R Models -- 1 Introduction -- 1.1 The Present Study -- 2 Materials and Methods -- 2.1 Measures -- 2.2 Data Analysis -- 3 Results -- 3.1 Model Results -- 4 Discussion -- 4.1 Practical and Theoretical Implications -- 4.2 Limitation and Future Direction -- 5 Conclusion -- References -- User-Device-Interaction Model: A Multimodal Interaction Εvaluation System Based on Analytic Hierarchy Process -- 1 Introduction -- 1.1 Emerging Interaction Modalities -- 1.2 Multimodal Interaction Evaluation -- 2 Evaluation Indicator -- 2.1 Evaluation Elements -- 2.2 Interpretative Structural Modeling -- 3 AHP-Based Interaction Evaluation Model -- 3.1 Indicator Weights -- 3.2 Weight Vector -- 3.3 Consistency Testing -- 4 Empirical Analysis -- 4.1 Experiment Design -- 4.2 Experiment Results -- 4.3 Scale Data Reliability Testing -- 4.4 Model Validity Testing -- 5 Conclusion -- References.; Using Virtual Reality to Overcome Legacy Bias in Remote Gesture Elicitation Studies -- 1 Introduction -- 2 Related Work -- 2.1 Legacy Bias in Gesture Elicitation -- 2.2 Legacy Bias Reduction Designs -- 3 VR Application Design -- 3.1 Design Approach -- 3.2 Apparatus, Materials, and Setup -- 3.3 VR Training -- 3.4 VR GES with `Production' -- 3.5 VR GES with `Priming' -- 3.6 VR GES with `Partnering' -- 3.7 Control Group Design -- 4 Evaluating VR Design with Legacy Bias Reduction -- 4.1 Participants -- 4.2 Procedure -- 4.3 Measures -- 4.4 Gesture Binning -- 4.5 Legacy Bias Classification -- 5 Study Results -- 5.1 Legacy Bias Reduction Design Analysis -- 5.2 Qualitative Analysis -- 5.3 Legacy Bias Reduction Effect Analysis -- 6 Discussion -- 6.1 Limitation and Future Work -- 7 Conclusion -- ; References -- Design Guidelines Towards 4.0 HMIs: How to Translate Physical Buttons in Digital Buttons -- 1 Introduction and Research Context -- 2 Case Study -- 2.1 Case Study Description -- 2.2 Methods and Design Flow -- 3 Discussion and Design Guidelines -- 3.1 Design Guidelines for the Translation of Physical Buttons in Digital Buttons -- 4 Conclusions -- References -- Meta-analysis Qualifying and Quantifying the Benefits of Automation Transparency to Enhance Models of Human Performance -- 1 Introduction -- 1.1 Background -- 1.2 Existing HAI HPM Framework and Algorithm -- 1.3 An Influence Model of Human-Automation Team (HAT) Performance -- 2 Focus on Automation Transparency -- 3 Method -- 4 Results -- 5 Discussion -- 5.1 Review and Interpretation of the Effects -- 5.2 Implications for the HAI Model -- References -- A Review of Human-Computer Interface Evaluation Research Based on Evaluation Process Elements -- 1 Introduction -- 2 Human-Computer Interface Evaluation Purpose -- 2.1 Interface Usability -- 2.2 Visual Performance -- 2.3 Interface Aesthetics.; 2.4 Suitability for Special People.
• Sommario/riassunto: The four-volume set LNCS 14011, 14012, 14013, and 14014 constitutes the refereed proceedings of the Human Computer Interaction thematic area of the 25th International Conference on Human-Computer Interaction, HCII 2023, which took place in Copenhagen, Denmark, in July 2023. A total of 1578 papers and 396 posters have been accepted for publication in the HCII 2023 proceedings from a total of 7472 submissions. The papers included in the HCI 2023 volume set were organized in topical sections as follows: Part I: Design and evaluation methods, techniques and tools; interaction methods and techniques; Part II: Children computer interaction; emotions in HCI; and understanding the user experience; Part III: Human robot interaction; chatbots and voice-based interaction; interacting in the metaverse; Part IV: Supporting health, quality of life and everyday activities; HCI for learning, culture, creativity and societal impact.