This book develops several novel foam-filled structures and steel-concrete-steel (SCS) sandwich structures, which provides more alternatives for ensuring the safety of buildings and infrastructures under extreme loading, like impact and blast. In the first part of this book, the aluminium foam- and polyurethane foam-filled structures have been developed for dissipating impact and blast energy. Experimental and numerical studies have been conducted to obtain their behaviours under impact loading. In addition, analytical models have also been proposed to assess their energy absorption performances and facilitate the impact and blast design when using the proposed foam-filled structures. In the second part of this book, SCS sandwich structures with novel shear connectors have been developed and their behaviours under impact and blast loading have been experimentally, numerically and analytical studied. Analytical models for predicting the impact and blast responses of SCS sandwich structures have also been developed. In the third part of this book, a new steel-polyurethane foam-steel-concrete-steel (SPUFSCS) panel (i.e. the combination of foam material and SCS panel) has been developed to achieve a higher impact resistant capacity. Owing to the increasing impact and blast threats on buildings and infrastructures, the studies presented in this book are of significant importance for providing several new solutions for impact and blast enhancement.
Author(s): Yonghui Wang, Xudong Zhi, Ximei Zhai, Jiachuan Yan, Rong Zhang
Publisher: Springer
Year: 2022
Language: English
Pages: 365
City: Singapore
Preface
Contents
1 Aluminum Foam-Filled Energy Absorption Connectors Under Impact
1.1 Introduction
1.2 Experimental Study
1.2.1 Design of Specimens
1.2.2 Test Setup and Instrumentation
1.2.3 General Observations
1.2.4 Energy Absorption Performances of Type I Connectors
1.2.5 Energy Absorption Performances of Type II Connectors
1.3 Numerical and Analytical Models
1.3.1 Numerical Model
1.3.2 Analytical Model for Type I Connector
1.3.3 Analytical Model for Type II Connector
1.3.4 Comparisons and Discussions
1.4 Blast Resistant Design Using Energy Absorption Connectors
1.5 Summary
References
2 Polyurethane Foam-Filled Energy Absorption Connectors Under Impact
2.1 Introduction
2.2 Methodologies
2.2.1 Experimental Approach
2.2.2 Finite Element Models
2.3 Results and Discussions
2.3.1 FE Model Validation
2.3.2 Deformation Mode
2.3.3 Force–Displacement Responses
2.3.4 Energy Absorption Performance of Type III Connector
2.3.5 Energy Absorption Performance of Type IV Connector
2.4 Analytical Model
2.4.1 Analytical Model for Type III Connector
2.4.2 Analytical Model for Type IV Connector
2.5 Summary
References
3 Aluminum Foam-Filled Circular-Triangular Nested Tubes Under Impact
3.1 Introduction
3.2 Methodologies
3.2.1 Experimental Methodology
3.2.2 Numerical Methodology
3.3 Results and Discussions
3.3.1 Energy Absorption Parameters
3.3.2 FE Model Validation
3.3.3 Deformation Mode
3.3.4 Force and Energy Absorption Responses
3.3.5 Energy Absorption Performance
3.3.6 Further FE Analysis
3.4 Summary
References
4 Sandwich Panel with Aluminum Foam-Filled Tubular Cores Under Impact
4.1 Introduction
4.2 Methodologies
4.2.1 Experimental Methodology
4.2.2 Numerical Methodology
4.3 Results and Discussions
4.3.1 Failure Modes
4.3.2 Impact Force, Displacement and Energy Absorption Responses
4.3.3 Parametric Studies
4.4 Summary
References
5 Flat Steel–Concrete-Corrugated Steel Sandwich Panel Under Impact
5.1 Introduction
5.2 Methodologies
5.2.1 Experimental Methodology
5.2.2 Numerical Methodology
5.3 Results and Discussions
5.3.1 FE Model Validation
5.3.2 Failure Mode
5.3.3 Impact Force and Displacement Responses
5.3.4 Internal Energy Response
5.3.5 FE Parametric Studies
5.4 Summary
References
6 Stiffener-Enhanced Steel–Concrete-Steel Sandwich Beam and Panel Under Impact
6.1 Introduction
6.2 SESCS Sandwich Beam Under Impact
6.2.1 Experimental Study
6.2.2 Numerical Study
6.2.3 Analytical Study
6.3 SESCS Sandwich Panel Under Impact
6.3.1 Experimental Study
6.3.2 Numerical Study
6.4 Summary
References
7 Curved Steel–Concrete-Steel Sandwich Shells Under Impact
7.1 Introduction
7.2 Test Program
7.2.1 Specimens
7.2.2 Materials
7.2.3 Test Setup
7.3 Test Results and Discussions
7.3.1 Damage Analysis of CSCS Shells
7.3.2 Impact Force History
7.3.3 Displacement History and Permanent Deformation
7.4 Numerical Modeling
7.4.1 FE Model Establishment
7.4.2 FE Results and Discussions
7.5 Analytical Model
7.5.1 Force–Displacement Relationship
7.5.2 Displacement Response
7.6 Summary
References
8 Steel–Concrete-Steel Sandwich Panel Under Simulated Blast Loading
8.1 Introduction
8.2 Experimental Study
8.2.1 Design of Specimens
8.2.2 Test Setup and Instrumentation
8.2.3 Test Results and Discussions
8.3 Numerical Study
8.3.1 Material Models
8.3.2 Model Description
8.3.3 Numerical Results and Discussions
8.3.4 Further Numerical Simulations and Discussions
8.4 Summary
References
9 Analytical Models for Axially-Restrained Steel–Concrete-Steel Sandwich Panel Under Blast
9.1 Introduction
9.2 FE Model Calibration
9.2.1 Blast Loading Test on SCS Sandwich Panels
9.2.2 FE Model Establishment
9.2.3 FE Model Validation
9.3 SDOF Model
9.3.1 Resistance–Deflection Function Contributed by Concrete Core
9.3.2 DIF for SDOF Model
9.3.3 Equation of Motion for SDOF System
9.4 Lagrange Equation Model
9.4.1 Equation of Motion
9.4.2 DIF for Lagrange Equation Model
9.5 Results and Discussions
9.6 Summary
References
10 Curved Steel–Concrete-Steel Sandwich Shell Under Blast
10.1 Introduction
10.2 FE Model Establishment and Verification
10.2.1 FE Model of Curved SCS Sandwich Shell
10.2.2 FE Model Verification
10.3 Curved SCS Sandwich Shell Without Shear Connectors
10.4 Curved SCS Sandwich Shell with Shear Connectors
10.4.1 Influence of Shear Connectors
10.4.2 Influence of Blast Loading
10.4.3 Influence of Rise Height
10.4.4 Influence of Rear to Front Plate Thickness Ratio
10.5 SDOF Model for Curved SCS Sandwich Shell
10.5.1 Deflection Shape Function
10.5.2 Strain–Displacement Relationship
10.5.3 Equation of Motion
10.6 P–I Diagram for Curved SCS Sandwich Shell
10.6.1 Internal Energy–Displacement Relationship
10.6.2 Dimensionless Pressure and Impulse
10.6.3 Dimensionless P–I Diagram Establishment
10.7 Blast Resistant Design Approach
10.8 Summary
References
11 Steel-PU Foam-Steel–Concrete-Steel Panel Under Impact
11.1 Introduction
11.2 SPUFSCS Panel Under the Impact of a Hemispherical Hammer
11.2.1 Experimental Study
11.2.2 Numerical Study
11.3 SPUFSCS Panel Under the Impact of a Cylindrical Hammer
11.3.1 Experimental Study
11.3.2 Numerical Study
11.3.3 Analytical Study
11.4 Summary
References
