Structural And Failure Mechanics Of Sandwich Composites

by Carlsson, L. A.; Kardomateas, G. A.

• ISBN13: 9781402032240
• ISBN10: 1402032242
• eBook ISBN(s): 9781402032257
• Format: Hardcover
• Copyright: 2011-05-02
• Publisher: Springer Verlag
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Summary

Structural and Failure Mechanics of Sandwich Composites" by Leif A. Carlsson and George A. Kardomateas focuses on important deformation and failure modes of sandwich structures such as face sheet/core debonding, core cracking, failure under impact loading, wrinkling and local buckling as well as global buckling strength and fatigue strength. The text provides also the mechanics background necessary for understanding these fracture processes and the response of sandwich beams and plates under a variety of loadings. Furthermore, the book reviews test methods developed for the characterization of the constituent face and core materials, the bond layer, and structural elements of the sandwich. Finally, the book includes new three-dimensional elasticity solutions for the structural behavior, which can serve as benchmarks for judging the accuracy of simplified sandwich plate, shell and beam theories. The book will benefit structural and materials engineers and researchers seeking to achieve a deeper understanding of the structural behavior, structural integrity, and failure mechanisms of sandwich structures.

Table of Contents

Preface INTRODUCTION TO SANDWICH STRUCTURES CONSTITUENTS MATERIALS AND FORMS Bending Stiffness of a Sandwich Beam Stresses in the Face Sheets and Core in a Sandwich Beam Failure Modes in Sandwich Beams Selection of Face and Core Materials Experimental Characterization of Face Sheet and Core Materials3. ANALYSIS AND STRUCTURAL BEHAVIOR OF SANDWICH BEAMS Asymmetric Sandwich Beams Examples of Bending of Sandwich Beams3.3 Experimental Studies of Sandwich Beams4. FLAT SANDWICH PANELS Bending of Sandwich Panels Under Transverse Loading Shear or Other Edge-wise Loads Buckling of Simply Supported Sandwich Panels Under In-Plane Loading Testing of Sandwich Panels4.4.1 Transverse Distributed Loading4.4.2 Plate Twist Test4.4.3 In-Plane Compressive Loading4.5 Three-Dimensional Elasticity Solutions5. CYLINDRICAL SANDWICH SHELLS Axial Compressive Loading External or Internal Pressure Loading Three-Dimensional Elasticity Solutions Testing of Cylindrical Sandwich Shells6. WRINKLING AND GLOBAL BUCKLING IN SANDWICH STRUCTURES Introduction Wrinkling Formulas Based on Beam/Plate Models Global Buckling Formulas Based on Beam/Plate Models and Effects of Transverse Shear Three Dimensional Elasticity Solutions for Wrinkling and Global Buckling Experimental Observations Interaction of Wrinkling and Global Buckling FAILURE MODES OF SANDWICH STRUCTURES Introduction - Modes of Failure Local Failure due to Concentrated Transverse Loads Failure of Flexure Loaded Sandwich Beams Compression Failure of Sandwich Columns Fatigue Failure of Sandwich Panels Failure Under Impact Loading FACE SHEET/CORE DEBONDING OF SANDWICH STRUCTURES Introduction - Debond Initiation and Propagation Debond Buckling Under Localized Compression Fracture Mechanics Models and Prediction of Debond Initiation and Propagation Effects of Fatigue Loading on the Debond Initiation and Propagation Experimental Observations and Testing Methodologies for Assessing Debond Fracture Toughness CORE CRACKING AND OTHER FAILURE MODES Introduction - Development of Core Cracks Experimental Observations of Core Crack Initiation and Growth Prediction of Core Crack Propagation Effects of Fatigue Loading on the Core Crack Initiation REFERENCES INDEX