Local Mechanics Concepts for Composite Material Systems: IUTAM Symposium Blacksburg, VA 1991J.N. Reddy, K.L. Reifsnider The application of composite materials to engineering components has spurred a ma jor effort to analyze such materials and the structures made from them. Most researchers workin~ in mechanics of composite structures understand that composite materials pro vide umque advantages but also present complex and challenging problems to researchers. The complex inelastic behavior and variety of failure modes of composite structures are a result of the strength and stiffness properties of constituents and their complex interac tions. Macromechanical constitutive models based on gross composite properties cannot realistically represent local interactions, and thus have serious limitations. The composite materials that are of most interest to engineering applications are often "brittle" in their behavior, in the sense that the strength and life of the material systems is controlled or greatly influenced by events or processes which involve volumes of material whose dimen sions are small compared to the global dimensions of the element. This is also true in ductile systems where local nonlinearity may contribute to local behavior which controls global response. |
Contents
Axisymmetric Micromechanical Stress Fields in Composites | 1 |
Analytical Modeling of Micromechanical Stress Variations in Continuous | 27 |
Some Aspects of Continuum Damage Mechanics Applied to Polymer | 63 |
Copyright | |
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Other editions - View all
Local Mechanics Concepts for Composite Material Systems J. N. Reddy,K. L. Reifsnider No preview available - 1992 |
Local Mechanics Concepts for Composite Material Systems: IUTAM Symposium ... J.N. Reddy,K.L. Reifsnider No preview available - 2011 |
Common terms and phrases
aluminium analysis approach approximation ARALL assumed average axial behavior boundary conditions calculated Composite Laminates Composite Materials compressive computational constant coordinate crack bridging crack growth cross ply cross-ply laminates damage debonding deformation delamination distribution effect elastic energy release rate equation experimental failure fatigue fiber fibre fracture Figure finite element fracture strain fracture toughness function global Green's function hoop stress interface interphase isotropic L-shaped defects laminated composite laminated plates layer layer-wise linear loading matrix composites matrix material maximum Mech Mechanics method micro crack density microcrack interactions micromechanical mode modulus numerical obtained parameters plane plane strain plies ply laminate predicted present problem ratio reinforced shear stress shear-lag shown in Fig Solids solution specimen strain energy strength stress components stress concentration stress field stress-strain structures surface treatment tensile tensor thickness traction transverse cracking transverse ply transverse shear unidirectional composites variation Virginia Tech viscoelastic Weibull Weibull distribution whisker