رسالة دكتوراة بعنوان Strength Design Methods for Glass Structures

رسالة دكتوراة بعنوان Strength Design Methods for Glass Structures
اسم المؤلف
Maria Fröling
التاريخ
27 ديسمبر 2020
المشاهدات
203
التقييم
(لا توجد تقييمات)
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رسالة دكتوراة بعنوان
Strength Design Methods for Glass Structures
Maria Fröling
Structural Mechanics
Doctoral Thesis
Contents
1 Introduction 1
1.1 Background . 1
1.2 Aim . 1
1.3 Limitations . 1
2 Glass in the Structural Design Process 3
2.1 General Remarks 3
2.2 New Features of the Glass Design Program ClearSight 5
2.3 Example of the Use of ClearSight . 6
3 Structural Glass 9
3.1 General Remarks 9
3.2 The Material Glass . 9
3.3 Types of Glass 10
3.3.1 Annealed Glass . 10
3.3.2 Fully Tempered Glass . 10
3.3.3 Heat Strengthened Glass 10
3.3.4 Laminated Glass 11
3.3.5 Insulated Glass . 12
3.4 Linear-elastic Materials . 12
3.5 Mechanical Properties of Glass . 13
3.6 Fracture Criterion 14
4 Review on Laminated Glass Subjected to Static Loads 16
4.1 Introduction . 16
4.2 Experimental Results 16
4.3 Analytical Results 18
4.4 Numerical Results 21
4.5 Discussion 24
5 Theory and Methods 26
5.1 Stress Prediction of Laminated Glass Structures Subjected to Static Shortterm Loads . 26
5.2 The M-RESS Solid-shell Element . 27
5.2.1 The EAS-method 28
5.2.2 Treatment of the Strain Field to Account for Stabilization . 29
5.2.3 Stress Evaluation 30
5.3 An Analytical Model for Structural Analysis of Laminated Glass in Bending 30
5.4 Modeling of Hyperelastic Materials 34
5.4.1 Strain Energy Function, the Neo-Hooke Model and the MooneyRivlin Model 35
5.5 Dynamic Analysis 36
5.6 The Rayleigh-Ritz Procedure 38
vii5.7 Structure-acoustic Analysis . 39
6 Application of Developed Design Methods 42
6.1 General . 42
6.2 Description of Test Example 42
6.3 Finite Element Analysis Using Three Dimensional Solid Elements 43
6.4 Finite Element Analysis Using M-RESS Elements . 44
6.5 Stress Prediction Using Design Charts . 45
6.6 Results and Comparison 46
7 Overview of Present Work 48
7.1 The Application of the M-RESS Element for Stress Evaluation of Advanced Laminated Glass Structures . 48
7.2 Development of Design Charts for Stress Evaluation of Laminated Glass
Balustrades with Bolted Joints Subjected to a Line Load . 50
7.3 Evaluation of the Shear-capacity in Adhesive Glass Joints and Development of Material Models for the Adhesives 51
7.4 Development of a Reduced Model for Evaluation of Stresses in Glass
Structures Subjected to Dynamic Impact Load . 54
7.5 Structural Analysis of Insulated Glass Subjected to Dynamic Impact Load 57
8 Discussion 60
8.1 Conclusions . 60
8.1.1 Application of the M-RESS Element for Stress Prediction in Laminated Glass . 60
8.1.2 Design Charts for Stress Evaluation in Laminated Glass Balustrades 60
8.1.3 Shear-capacity in Adhesive Glass Joints 60
8.1.4 Reduced Modeling for Glass Subjected to Dynamic Impact Load . 61
8.1.5 Analysis of Insulated Glass Subjected to Dynamic Impact Load . 61
8.2 Future Work . 61
9 Summary of the Papers 63
9.1 Paper 1 . 63
9.2 Paper 2 . 63
9.3 Paper 3 . 63
9.4 Paper 4 . 64
9.5 Paper 5 . 64
viiiAPPENDED PAPERS
Paper 1
Computational Methods for Laminated Glass
Maria Fröling and Kent Persson
Paper 2
Designing Bolt Fixed Laminated Glass with Stress Concentration Factors
Maria Fröling and Kent Persson
Paper 3
Shear-Capacity in Adhesive Glass Joints
Maria Fröling, Kent Persson and Oskar Larsson
Paper 4
A Reduced Model for the Design of Glass Structures Subjected to Dynamic Impulse
Load
Maria Fröling, Kent Persson and Per-Erik Austrell
Paper 5 Numerical Analysis of Insulated Glass Subjected to Soft Body Impact
Maria Fröling and Kent Persson
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