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Basic Mechanics of Laminated Composite Plates

File : pdf, 3.3 MB, 107 pages

TOC

I. INTRODUCTION
A. Intent and Scope
B. Terminology and Notation
C. Summary of Sections

II. GENERALIZED HOOKE’S LAW FOR NONISOTROPIC MATERIALS
A. NormalS tress and Strain. Uniaxially Applied Force
B. Stress and Strain. Plane Stress for Specially Orthotropic Plates
C. Stress and Strain, Plane Stress for Generally Orthotropic Plates
D. Invariant Stiffnesses

III. MECHANICS OF LAMINATED COMPOSITES
A. Assumptions
B. Definitions of Strains and Displacements
C. Definitions of Stress and Moment Resultants
D. Constitutive Equations for a Laminate
E. Physical Meanings of the [A], [B], and [Dl Matrices

IV. NOMENCLATURE FOR DEFINING STACKING SEQUENCES
A. Coordinate System
B. Nomenclature

V. IN-PLANE ENGINEERING CONSTANTS FOR THE LAMINATE
A. Orientation of the Laminate
B. Symmetric Laminates
C. Nonsymmetric Laminates
D. Summary

VI. ENVIRONMENTAL EFFECTS
A. Importance
B. Coefficients of Thermal Expansion
C. Moisture Effects

VII. STRESSES AND STRAINS WITHIN LAMINAE OF A SYMMETRIC LAMINATE
A. Strains Within the Laminae
B. Stresses Within the Laminae

VIII. STRESS AND STRAINS WITHIN LAMINAE OF AN UNSYMMETRIC LAMINATE
A. Difference From Symmetric Laminates
B. Example   Laminates
C. Determination of the Neutral Plane

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