Multi Scale Mechanism Based Life Prediction Of Polymer Matrix Composites For High Temperature Airframe Applications

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Multi-scale Mechanism Based Life Prediction of Polymer Matrix Composites for High Temperature Airframe Applications

Author : Priyank Upadhyaya
Publisher :
ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (847 download)

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Book Synopsis Multi-scale Mechanism Based Life Prediction of Polymer Matrix Composites for High Temperature Airframe Applications by : Priyank Upadhyaya

Download or read book Multi-scale Mechanism Based Life Prediction of Polymer Matrix Composites for High Temperature Airframe Applications written by Priyank Upadhyaya and published by . This book was released on 2013 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-scale mechanism-based life prediction model is developed for high-temperature polymer matrix composites (HTPMC) for high temperature airframe applications. In the first part of this dissertation the effect of Cloisite 20A (C20A) nano-clay compounding on the thermo-oxidative weight loss and the residual stresses due to thermal oxidation for a thermoset polymer bismaleimide (BMI) are investigated. A three-dimensional (3-D) micro-mechanics based finite element analysis (FEA) was conducted to investigate the residual stresses due to thermal oxidation using an in-house FEA code (NOVA-3D). In the second part of this dissertation, a novel numerical-experimental methodology is outlined to determine cohesive stress and damage evolution parameters for pristine as well as isothermally aged (in air) polymer matrix composites. A rate-dependent viscoelastic cohesive layer model was implemented in an in-house FEA code to simulate the delamination initiation and propagation in unidirectional polymer composites before and after aging. Double cantilever beam (DCB) experiments were conducted (at UT-Dallas) on both pristine and isothermally aged IM-7/BMI composite specimens to determine the model parameters. The J-Integral based approach was adapted to extract cohesive stresses near the crack tip. Once the damage parameters had been characterized, the test-bed FEA code employed a micromechanics based viscoelastic cohesive layer model to numerically simulate the DCB experiment. FEA simulation accurately captures the macro-scale behavior (load-displacement history) simultaneously with the micro-scale behavior (crack-growth history).

Going to Extremes

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309097150
Total Pages : 80 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Going to Extremes by : National Research Council

Download or read book Going to Extremes written by National Research Council and published by National Academies Press. This book was released on 2005-10-22 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced polymer matrix composites (PMC) have many advantages such as light weight and high specific strength that make them useful for many aerospace applications. Enormous uncertainty exists, however, in predicting long-term changes in properties of PMCs under extreme environmental conditions, which has limited their use. To help address this issue, the Department of Defense requested a study from the NRC to identify the barriers and limitations to the use of PMCs in extreme environments. The study was to focus on issues surrounding methodologies for predicting long-term performance. This report provides a review of the challenges facing application of PMCs in extreme environments, the current understanding of PMC properties and behavior, an analysis of the importance of data in developing effective models, and recommendations for improving long-term predictive methodologies.

American Society of Composites-28th Technical Conference

Author : Charles Bakis
Publisher : DEStech Publications, Inc
ISBN 13 : 1605951072
Total Pages : 1892 pages
Book Rating : 4.6/5 (59 download)

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Book Synopsis American Society of Composites-28th Technical Conference by : Charles Bakis

Download or read book American Society of Composites-28th Technical Conference written by Charles Bakis and published by DEStech Publications, Inc. This book was released on 2013-11-01 with total page 1892 pages. Available in PDF, EPUB and Kindle. Book excerpt: New and unpublished U.S. and international research on multifunctional, active, biobased, SHM, self-healing composites -- from nanolevel to large structures New information on modeling, design, computational engineering, manufacturing, testing Applications to aircraft, bridges, concrete, medicine, body armor, wind energy This fully searchable CD-ROM contains 135 original research papers on all phases of composite materials. The document provides cutting edge research by US, Canadian, and Japanese authorities on matrix-based and fiber composites from design to damage analysis and detection. Major divisions of the work include: Structural Health Monitoring, Multifunctional Composites, Integrated Computational Materials Engineering, Interlaminar Testing, Analysis-Shell Structures, Thermoplastic Matrices, Analysis Non-classical Laminates, Bio-Based Composites, Electrical Properties, Dynamic Behavior, Damage/Failure, Compression-Testing, Active Composites, 3D Reinforcement, Dielectric Nanocomposites, Micromechanical Analysis, Processing, CM Reinforcement for Concrete, Environmental Effects, Phase-Transforming, Molecular Modeling, Impact.

Long-Term Durability of Polymeric Matrix Composites

Author : Kishore V. Pochiraju
Publisher : Springer Science & Business Media
ISBN 13 : 1441993088
Total Pages : 681 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis Long-Term Durability of Polymeric Matrix Composites by : Kishore V. Pochiraju

Download or read book Long-Term Durability of Polymeric Matrix Composites written by Kishore V. Pochiraju and published by Springer Science & Business Media. This book was released on 2011-09-25 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-Term Durability of Polymeric Matrix Composites presents a comprehensive knowledge-set of matrix, fiber and interphase behavior under long-term aging conditions, theoretical modeling and experimental methods. This book covers long-term constituent behavior, predictive methodologies, experimental validation and design practice. Readers will also find a discussion of various applications, including aging air craft structures, aging civil infrastructure, in addition to engines and high temperature applications.

Modeling and Characterization of Thermo-oxidative Behavior of Bismaleimide Composites

Author : Rafid Muhammad Hussein
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Modeling and Characterization of Thermo-oxidative Behavior of Bismaleimide Composites by : Rafid Muhammad Hussein

Download or read book Modeling and Characterization of Thermo-oxidative Behavior of Bismaleimide Composites written by Rafid Muhammad Hussein and published by . This book was released on 2018 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: "High-temperature polymer matrix composites (HTPMCs) are susceptible to thermo-oxidation, which accelerates the composites' degradation and reduces the service life. Mechanical properties of HTPMCs deteriorate due to coupled thermo-oxidation and cross-linking mechanisms. Bismaleimides (BMIs) are commonly used high-temperature resins for aerospace applications. This work presents the viability of using experimental weight loss to model the spatial distribution of oxidation when the oxidized polymer matrix is not discernible. Three tasks are introduced: (1) Anisotropic oxidation prediction using optimized weight loss behavior of bismaleimide composites, (2) A multi-scale modeling of thermo-oxidative effects on the flexural behavior of cross-ply bismaleimide composites, and (3) Thermo-oxidative induced damage in polymer composites: microstructure image-based multi-scale modeling and experimental validation. Task 1 deals with simulating the weight loss and oxidized layer evolution in unidirectional BMI composites exposed to a service temperature in the operating range, 176.67 °C (350 °F) and 200 °C (392 °F). In task 2, microstructural changes of the cross-ply BMIs composites were characterized using microscopy. A multiscale approach for modeling flexural modulus degradation was proposed. In Task 3, a multi-scale modeling approach is presented to simulate and validate thermo-oxidation shrinkage and cracking damage. The micro-scale shrinkage deformation and cracking damage are simulated and validated using 2D and 3D simulations. The meso-scale geometrical domain and the micro-scale geometry and mesh are developed using the object oriented finite element (OOF). The macro-scale shrinkage and weight loss are measured using unidirectional coupons and used to build the macro-shrinkage model"--Abstract, page iv.

High Temperature Polymer Matrix Composites

Author : Tito T. Serafini
Publisher : William Andrew
ISBN 13 :
Total Pages : 440 pages
Book Rating : 4.:/5 (43 download)

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Book Synopsis High Temperature Polymer Matrix Composites by : Tito T. Serafini

Download or read book High Temperature Polymer Matrix Composites written by Tito T. Serafini and published by William Andrew. This book was released on 1987 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Long-Term Durability of Polymeric Matrix Composites

Author : Kishore V. Pochiraju
Publisher : Springer
ISBN 13 : 9781441993090
Total Pages : 677 pages
Book Rating : 4.9/5 (93 download)

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Book Synopsis Long-Term Durability of Polymeric Matrix Composites by : Kishore V. Pochiraju

Download or read book Long-Term Durability of Polymeric Matrix Composites written by Kishore V. Pochiraju and published by Springer. This book was released on 2011-09-27 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-Term Durability of Polymeric Matrix Composites presents a comprehensive knowledge-set of matrix, fiber and interphase behavior under long-term aging conditions, theoretical modeling and experimental methods. This book covers long-term constituent behavior, predictive methodologies, experimental validation and design practice. Readers will also find a discussion of various applications, including aging air craft structures, aging civil infrastructure, in addition to engines and high temperature applications.

NASA Technical Memorandum

Author :
Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Memorandum by :

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computational Modeling of Polymer Composites

Author : Samit Roy
Publisher : CRC Press
ISBN 13 : 9781466586499
Total Pages : 0 pages
Book Rating : 4.5/5 (864 download)

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Book Synopsis Computational Modeling of Polymer Composites by : Samit Roy

Download or read book Computational Modeling of Polymer Composites written by Samit Roy and published by CRC Press. This book was released on 2013-09-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Modeling of Polymer Composites: A Study of Creep and Environmental Effects details the development of polymeric materials and their use in smart materials and composite structures in aerospace and automotive industries. Based on the authors' work during the past 30 years, this book provides a strong understanding of the theories and associated finite element life-prediction models for elastic and viscoelastic response of polymers and polymer composites in aggressive environments. The subject is an interdisciplinary one where chemists, material scientists, and chemical, mechanical, and structural engineers contribute to the overall product. Books on polymer composites are usually of three types: material science, mechanics, and computational. This book combines mechanics of materials with the computational element. The authors suggest an introductory course on mechanics of materials to cover all bases. The book begins with mathematical preliminaries, equations of anisotropic elasticity, virtual work principles, and variational methods. It provides an introduction to the finite element method and finite element analysis of viscoelastic materials, and then moves on to the solvent diffusion process in polymers and polymeric composites, as well as the linear and nonlinear viscoelastic models and the implementation of finite element models of viscoelastic materials. Computational Modeling of Polymer Composites: A Study of Creep and Environmental Effects delves into both uniaxial and multiaxial cases and delayed failure before discussing the finite element analysis of the nonlinear diffusion process in polymers. It also includes non-Fickean diffusion of polymers, the coupled hygrothermal cohesive layer model for simulating debond growth in bimaterial interfaces, and the viscoelastic cohesive layer model for the prediction of interlaminar shear strength of carbon/epoxy composites. The final chapter covers a multi-scale viscoelastic cohesive layer model for predicting delamination in high temperature polymer composites. This book can be used as a reference or as a graduate course textbook on theory and/or finite element analysis of polymers and polymeric composites.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1102 pages
Book Rating : 4.X/5 (2 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High-Performance Structural Fibers for Advanced Polymer Matrix Composites

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309181836
Total Pages : 70 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis High-Performance Structural Fibers for Advanced Polymer Matrix Composites by : National Research Council

Download or read book High-Performance Structural Fibers for Advanced Polymer Matrix Composites written by National Research Council and published by National Academies Press. This book was released on 2005-05-09 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military use of advanced polymer matrix composites (PMC)â€"consisting of a resin matrix reinforced by high-performance carbon or organic fibersâ€"while extensive, accounts for less that 10 percent of the domestic market. Nevertheless, advanced composites are expected to play an even greater role in future military systems, and DOD will continue to require access to reliable sources of affordable, high-performance fibers including commercial materials and manufacturing processes. As a result of these forecasts, DOD requested the NRC to assess the challenges and opportunities associated with advanced PMCs with emphasis on high-performance fibers. This report provides an assessment of fiber technology and industries, a discussion of R&D opportunities for DOD, and recommendations about accelerating technology transition, reducing costs, and improving understanding of design methodology and promising technologies.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Natural Fibers, Biopolymers, and Biocomposites

Author : Amar K. Mohanty
Publisher : CRC Press
ISBN 13 : 0203508203
Total Pages : 896 pages
Book Rating : 4.2/5 (35 download)

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Book Synopsis Natural Fibers, Biopolymers, and Biocomposites by : Amar K. Mohanty

Download or read book Natural Fibers, Biopolymers, and Biocomposites written by Amar K. Mohanty and published by CRC Press. This book was released on 2005-04-08 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural/Biofiber composites are emerging as a viable alternative to glass fiber composites, particularly in automotive, packaging, building, and consumer product industries, and becoming one of the fastest growing additives for thermoplastics. Natural Fibers, Biopolymers, and Biocomposites provides a clear understanding of the present state

International Aerospace Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1044 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Composite Materials

Author : Luigi Nicolais
Publisher : Springer Science & Business Media
ISBN 13 : 0857291661
Total Pages : 221 pages
Book Rating : 4.8/5 (572 download)

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Book Synopsis Composite Materials by : Luigi Nicolais

Download or read book Composite Materials written by Luigi Nicolais and published by Springer Science & Business Media. This book was released on 2011-05-18 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite Materials presents recent developments and state-of-the-art achievements in the science and technology of composites. It identifies and discusses key and emerging issues for future progress in the multidisciplinary field of composites. By bringing together leading experts and promising innovators from research institutions and academia, Composite Materials highlights unresolved issues and identifies opportunities for long-term research needs to provide the reader with a vision for the future in various fields of application of composite materials. A few of the many future directions highlighted in the book are increasingly multifunctional properties; complex, hybrid and nanoreinforced materials; and tailoring in multiple dimensions and directions. The wider areas covered include, but are not limited to, the following: biomedical engineering, civil engineering, aerospace engineering, automotive engineering, and naval engineering. Composite Materials is designed to increase the reader’s understanding of the state of the art of composite materials in a variety of industrial sectors and to explore future needs and opportunities. It will therefore be of use to professionals working in the composites industry, research centers, and academia, who already have a graduate-level knowledge of composite materials.

Multiscale Modeling and Simulation of Composite Materials and Structures

Author : Young Kwon
Publisher : Springer Science & Business Media
ISBN 13 : 0387363181
Total Pages : 634 pages
Book Rating : 4.3/5 (873 download)

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Book Synopsis Multiscale Modeling and Simulation of Composite Materials and Structures by : Young Kwon

Download or read book Multiscale Modeling and Simulation of Composite Materials and Structures written by Young Kwon and published by Springer Science & Business Media. This book was released on 2007-12-04 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state-of-the-art in multiscale modeling and simulation techniques for composite materials and structures. It focuses on the structural and functional properties of engineering composites and the sustainable high performance of components and structures. The multiscale techniques can be also applied to nanocomposites which are important application areas in nanotechnology. There are few books available on this topic.

Titanium Matrix Composites

Author : Shankar Mall
Publisher : CRC Press
ISBN 13 : 1000725472
Total Pages : 482 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis Titanium Matrix Composites by : Shankar Mall

Download or read book Titanium Matrix Composites written by Shankar Mall and published by CRC Press. This book was released on 2020-01-29 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review and summary of advancements related to mechanical behavior and related mechanics issues of titanium matrix composites (TMCs), a class of high-temperature materials useful in the propulsion and airframe components in advanced aerospace systems. After an introduction to TMCs, different authors review and summarise the advancements related to mechanical behavior and related mechanics issues of TMCs.