Inelastic Behavior of Composite Materials
Author | : American Society of Mechanical Engineers. Applied Mechanics Division |
Publisher | : |
Total Pages | : 228 |
Release | : 1975 |
Genre | : Technology & Engineering |
ISBN | : |
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Author | : American Society of Mechanical Engineers. Applied Mechanics Division |
Publisher | : |
Total Pages | : 228 |
Release | : 1975 |
Genre | : Technology & Engineering |
ISBN | : |
Author | : George J. Dvorak |
Publisher | : Springer Science & Business Media |
Total Pages | : 763 |
Release | : 2012-12-06 |
Genre | : Technology & Engineering |
ISBN | : 1461391091 |
Polymer composites were introduced for the aerospace industry as light, strong, stiff materials, and adopted by the construction and automobile industries, among others. Meanwhile, composite materials have been introduced to fulfill the uses that these conventional materials could not, such as in extreme environments. The research for new composites includes not only new polymer systems, but metals, ceramics and intermetallic systems as well. This volume contains a selection of recent work by leading researchers in micromechanics on the topics of prediction of overall properties of elastic, perfectly bonded systems, problems associated with inelastic deformation of the phase, debonding at interfaces and growth of distributed damage. Many familiar aspects of mechanical behavior, such as fatigue, fracture, strength and buckling, etc. have been reexamined and adapted for these new systems.
Author | : |
Publisher | : |
Total Pages | : 29 |
Release | : 1997 |
Genre | : |
ISBN | : |
Accurately simulating the complete dynamic behavior, elastic and inelastic, of engineering structures composed of fiber reinforced composite materials can be accomplished by integrating three components: (1) a physically based micromechanical material model that accounts for the experimentally observed mechanisms producing the inelastic behavior; (2) a dynamic three-dimensional continuum simulation capability in which the physically based micromechanical material model is incorporated; and (3) a complete set of robust dynamic experiments. These experiments are used (1) to establish the microstructural mechanisms that produce inelastic behavior and (2) to validate the dynamic simulation capability. This paper focuses on the implementation of a physically based micromechanical material model into an explicit 3D finite element code and shows the experimental comparison.
Author | : George Dvorak |
Publisher | : Springer Science & Business Media |
Total Pages | : 455 |
Release | : 2012-12-09 |
Genre | : Science |
ISBN | : 9400741014 |
This book presents a broad exposition of analytical and numerical methods for modeling composite materials, laminates, polycrystals and other heterogeneous solids, with emphasis on connections between material properties and responses on several length scales, ranging from the nano and microscales to the macroscale. Many new results and methods developed by the author are incorporated into the rich fabric of the subject, which has developed from the work of many researchers over the last 50 years. Among the new results, the book offers an extensive analysis of internal and interface stresses caused by eigenstrains, such as thermal, transformation and inelastic strains in the constituents, which often exceed those caused by mechanical loads, and of inelastic behavior of metal matrix composites. Fiber prestress in laminates, and modeling of functionally graded materials are also analyzed. Furthermore, this book outlines several key subjects on modeling the properties of composites reinforced by particles of various shapes, aligned fibers, symmetric laminated plates and metal matrix composites. This volume is intended for advanced undergraduate and graduate students, researchers and engineers interested and involved in analysis and design of composite structures.
Author | : George J Dvorak |
Publisher | : |
Total Pages | : 796 |
Release | : 1991-01-09 |
Genre | : |
ISBN | : 9781461391104 |
Author | : Donald Frederick Adams |
Publisher | : |
Total Pages | : 46 |
Release | : 1970 |
Genre | : Composite materials |
ISBN | : |
This memorandum applies the principles of classical plasticity theory to the very real problem of inelastic behavior of composite materials. To demonstrate the methodology, a specific application--trans-verse normal loading of a unidirectional composite--has been selected for detailed analysis. The behavior of a composite material can be divided into three distinct regimes: (l) LINEAR ELASTIC RESPONSE UP TO THE ELASTIC LIMIT, (2) inelastic behavior beyond the elastic limit and up to the loading at which first failure occurs locally, and (3) SUBSEQUENT CRACK PROPAGATION AND TOTAL COMPOSITE FAILURE. Results indicate that extensive local yielding and redistribution of stresses can occur in a composite with very little indication of such be-havior apparent by observation of the total stress- strain response of the composite alone. Thus, the establishment and interpretation of design criteria and theories of failure should be evaluated in light of these results and their im-plications with respect to such phenomena as fatigue life and fracture behavior. (Author, modified-PL).