Fully Coupled Micro/Macro Deformation, Damage, and Failure Prediction for Sic/Ti-15-3 Laminates

Fully Coupled Micro/Macro Deformation, Damage, and Failure Prediction for Sic/Ti-15-3 Laminates PDF Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781723727764
Category : Science
Languages : en
Pages : 36

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Book Description
The deformation, failure, and low cycle fatigue life of SCS-6/Ti-15-3 composites are predicted using a coupled deformation and damage approach in the context of the analytical generalized method of cells (GMC) micromechanics model. The local effects of inelastic deformation, fiber breakage, fiber-matrix interfacial debonding, and fatigue damage are included as sub-models that operate on the micro scale for the individual composite phases. For the laminate analysis, lamination theory is employed as the global or structural scale model, while GMC is embedded to operate on the meso scale to simulate the behavior of the composite material within each laminate layer. While the analysis approach is quite complex and multifaceted, it is shown, through comparison with experimental data, to be quite accurate and realistic while remaining extremely efficient.Bednarcyk, Brett A. and Arnold, Steven M. and Lerch, Brad A.Glenn Research CenterDAMAGE; DEFORMATION; FAILURE ANALYSIS; LAMINATES; MICROMECHANICS; COMPOSITE MATERIALS; FATIGUE LIFE; SILICON CARBIDES

Fully Coupled Micro/Macro Deformation, Damage, and Failure Prediction for Sic/Ti-15-3 Laminates

Fully Coupled Micro/Macro Deformation, Damage, and Failure Prediction for Sic/Ti-15-3 Laminates PDF Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781723727764
Category : Science
Languages : en
Pages : 36

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Book Description
The deformation, failure, and low cycle fatigue life of SCS-6/Ti-15-3 composites are predicted using a coupled deformation and damage approach in the context of the analytical generalized method of cells (GMC) micromechanics model. The local effects of inelastic deformation, fiber breakage, fiber-matrix interfacial debonding, and fatigue damage are included as sub-models that operate on the micro scale for the individual composite phases. For the laminate analysis, lamination theory is employed as the global or structural scale model, while GMC is embedded to operate on the meso scale to simulate the behavior of the composite material within each laminate layer. While the analysis approach is quite complex and multifaceted, it is shown, through comparison with experimental data, to be quite accurate and realistic while remaining extremely efficient.Bednarcyk, Brett A. and Arnold, Steven M. and Lerch, Brad A.Glenn Research CenterDAMAGE; DEFORMATION; FAILURE ANALYSIS; LAMINATES; MICROMECHANICS; COMPOSITE MATERIALS; FATIGUE LIFE; SILICON CARBIDES

Fully Coupled Micro/Macro Deformation, Damage, and Failure Prediction for SiC/Ti-15-3 Laminates

Fully Coupled Micro/Macro Deformation, Damage, and Failure Prediction for SiC/Ti-15-3 Laminates PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36

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Research & Technology 2001

Research & Technology 2001 PDF Author:
Publisher: DIANE Publishing
ISBN: 1428918213
Category :
Languages : en
Pages : 251

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Tensile Deformation of SiC/Ti-15-3 Laminates

Tensile Deformation of SiC/Ti-15-3 Laminates PDF Author: BA. Lerch
Publisher:
ISBN:
Category : Composite
Languages : en
Pages : 15

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Book Description
The damage mechanisms of a laminated, continuous SiC fiber-reinforced Ti-15-3 composite were investigated. Specimens consisting of unidirectional as well as cross-ply laminates were pulled in tension to failure at room temperature and 427°C and subsequently examined metallographically. Selected specimens were interrupted at various strain increments and examined to document the development of damage. When possible, a micromechanical stress analysis was performed to aid in the explanation of the observed damage. The analyses provided average constituent microstresses and laminate stresses and strains. The damage states were found to be highly influenced by the fiber architecture.

Micromechanics of Composite Materials

Micromechanics of Composite Materials PDF Author: Jacob Aboudi
Publisher: Butterworth-Heinemann
ISBN: 0123970350
Category : Technology & Engineering
Languages : en
Pages : 1032

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Book Description
Summary: A Generalized Multiscale Analysis Approach brings together comprehensive background information on the multiscale nature of the composite, constituent material behaviour, damage models and key techniques for multiscale modelling, as well as presenting the findings and methods, developed over a lifetime's research, of three leading experts in the field. The unified approach presented in the book for conducting multiscale analysis and design of conventional and smart composite materials is also applicable for structures with complete linear and nonlinear material behavior, with numerous applications provided to illustrate use. Modeling composite behaviour is a key challenge in research and industry; when done efficiently and reliably it can save money, decrease time to market with new innovations and prevent component failure.

Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 354

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 892

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Multi-Scale Continuum Mechanics Modelling of Fibre-Reinforced Polymer Composites

Multi-Scale Continuum Mechanics Modelling of Fibre-Reinforced Polymer Composites PDF Author: Wim Van Paepegem
Publisher: Woodhead Publishing
ISBN: 0128189851
Category : Technology & Engineering
Languages : en
Pages : 766

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Book Description
Multi-scale modelling of composites is a very relevant topic in composites science. This is illustrated by the numerous sessions in the recent European and International Conferences on Composite Materials, but also by the fast developments in multi-scale modelling software tools, developed by large industrial players such as Siemens (Virtual Material Characterization toolkit and MultiMechanics virtual testing software), MSC/e-Xstream (Digimat software), Simulia (micromechanics plug-in in Abaqus), HyperSizer (Multi-scale design of composites), Altair (Altair Multiscale Designer) This book is intended to be an ideal reference on the latest advances in multi-scale modelling of fibre-reinforced polymer composites, that is accessible for both (young) researchers and end users of modelling software. We target three main groups: This book aims at a complete introduction and overview of the state-of-the-art in multi-scale modelling of composites in three axes: • ranging from prediction of homogenized elastic properties to nonlinear material behaviour • ranging from geometrical models for random packing of unidirectional fibres over meso-scale geometries for textile composites to orientation tensors for short fibre composites • ranging from damage modelling of unidirectionally reinforced composites over textile composites to short fibre-reinforced composites The book covers the three most important scales in multi-scale modelling of composites: (i) micro-scale, (ii) meso-scale and (iii) macro-scale. The nano-scale and related atomistic and molecular modelling approaches are deliberately excluded, since the book wants to focus on continuum mechanics and there are already a lot of dedicated books about polymer nanocomposites. A strong focus is put on physics-based damage modelling, in the sense that the chapters devote attention to modelling the different damage mechanisms (matrix cracking, fibre/matrix debonding, delamination, fibre fracture,...) in such a way that the underlying physics of the initiation and growth of these damage modes is respected. The book also gives room to not only discuss the finite element based approaches for multi-scale modelling, but also much faster methods that are popular in industrial software, such as Mean Field Homogenization methods (based on Mori-Tanaka and Eshelby solutions) and variational methods (shear lag theory and more advanced theories). Since the book targets a wide audience, the focus is put on the most common numerical approaches that are used in multi-scale modelling. Very specialized numerical methods like peridynamics modelling, Material Point Method, eXtended Finite Element Method (XFEM), isogeometric analysis, SPH (Smoothed Particle Hydrodynamics),... are excluded. Outline of the book The book is divided in three large parts, well balanced with each a similar number of chapters:

Analysis and Performance of Fiber Composites

Analysis and Performance of Fiber Composites PDF Author: Bhagwan D. Agarwal
Publisher: Wiley-Interscience
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 480

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Book Description
Having fully established themselves as workable engineering materials, composite materials are now increasingly commonplace around the world. Serves as both a text and reference guide to the behavior of composite materials in different engineering applications. Revised for this Second Edition, the text includes a general discussion of composites as material, practical aspects of design and performance, and further analysis that will be helpful to those engaged in research on composites. Each chapter closes with references for further reading and a set of problems that will be useful in developing a better understanding of the subject.

Engineering Mechanics of Composite Materials

Engineering Mechanics of Composite Materials PDF Author: Isaac M. Daniel
Publisher:
ISBN: 9780198098386
Category : Composite materials
Languages : en
Pages : 411

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