An Evaluation Of Mixed Mode Delamination Failure Criteria

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An Evaluation of Mixed-Mode Delamination Failure Criteria

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722181055
Total Pages : 54 pages
Book Rating : 4.1/5 (81 download)

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Book Synopsis An Evaluation of Mixed-Mode Delamination Failure Criteria by : National Aeronautics and Space Administration (NASA)

Download or read book An Evaluation of Mixed-Mode Delamination Failure Criteria written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many different failure criteria have been suggested for mixed mode delamination toughness, but few sets of mixed mode data exist that are consistent over the full mode I opening to mode II shear load range. The mixed mode bending (MMB) test was used to measure the delamination toughness of a brittle epoxy composite, a state of the art toughened epoxy composite, and a tough thermoplastic composite over the full mixed mode range. To gain insight into the different failure responses of the different materials, the delamination fracture surfaces were also examined. An evaluation of several failure criteria which have been reported in the literature was performed, and the range of responses modeled by each criterion was analyzed. A new bilinear failure criterion was analyzed. A new bilinear failure criterion was developed based on a change in the failure mechanism observed from the delamination surfaces. The different criteria were compared to the failure criterion. The failure response of the tough thermoplastic composite could be modeled well with the bilinear criterion but could also be modeled with the more simple linear failure criterion. Since the materials differed in their mixed mode failure response, mixed mode delamination testing will be needed to characterize a composite material. A critical evaluation is provided of the mixed mode failure criteria and should provide general guidance for selecting an appropriate criterion for other materials. Reeder, J. R. Langley Research Center...

An Evaluation of Mixed-mode Delamination Failure Criteria

Author :
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis An Evaluation of Mixed-mode Delamination Failure Criteria by :

Download or read book An Evaluation of Mixed-mode Delamination Failure Criteria written by and published by . This book was released on 1992 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Bilinear Failure Criterion for Mixed-Mode Delamination

Author : Reeder, JR.
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis A Bilinear Failure Criterion for Mixed-Mode Delamination by : Reeder, JR.

Download or read book A Bilinear Failure Criterion for Mixed-Mode Delamination written by Reeder, JR. and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many different failure criteria have been suggested for mixed-mode delamination toughness, but few sets of mixed-mode data exist that are consistent over the full range of Mode I opening load to Mode II shear load range. The mixed-mode bending (MMB) test was used to measure the delamination toughness of a brittle epoxy composite, a state-of-the-art toughened epoxy composite, and a tough thermoplastic composite over the full mixed-mode range. To gain insight into the different failure responses of the different materials, the delamination fracture surfaces were also examined. An evaluation of several failure criteria that have been reported in the literature was performed, and the range of responses modeled by each criterion was analyzed. A bilinear failurecriterion was introduced based on a change in the failure mechanism observed from the delamination surfaces. The different criteria were compared to the failure response of the three materials tested. The responses of the two epoxies were best modeled with the new bilinear failure criterion. The failure response of the tough thermoplastic composite could be modeled well with the bilinear criterion but could also be modeled with the more simple linear failure criterion. Since the materials differed in their mixed-mode failure response, mixed-mode delamination testing will be needed to characterize a composite material. This paper presents consistent sets of mixed-mode data, provides a critical evaluation of the mixed-mode failure criteria, and should provide general guidance for selecting anappropriate criterion for other materials.

Composite Materials

Author : Eugene T. Camponeschi
Publisher : ASTM International
ISBN 13 : 0803118791
Total Pages : 360 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Composite Materials by : Eugene T. Camponeschi

Download or read book Composite Materials written by Eugene T. Camponeschi and published by ASTM International. This book was released on 1993 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Delamination and Debonding of Materials

Author : W. Steven Johnson
Publisher : ASTM International
ISBN 13 : 9780803104143
Total Pages : 507 pages
Book Rating : 4.1/5 (41 download)

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Book Synopsis Delamination and Debonding of Materials by : W. Steven Johnson

Download or read book Delamination and Debonding of Materials written by W. Steven Johnson and published by ASTM International. This book was released on 1985 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 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 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mechanistic Mixed-mode Failure Criterion for Continuous Fiber-polymer Composites

Author : Thomas Philip Bruce
Publisher :
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Mechanistic Mixed-mode Failure Criterion for Continuous Fiber-polymer Composites by : Thomas Philip Bruce

Download or read book Mechanistic Mixed-mode Failure Criterion for Continuous Fiber-polymer Composites written by Thomas Philip Bruce and published by . This book was released on 2011 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of continuous fiber-polymer composite components with optimized and predictable energy dissipation requires a failure criterion able to predict the fracture energy of CFP composites for all mixed-mode loading conditions. Existing mixed-mode failure criteria are empirical and show poor correlation for a range of CFP composites. Therefore, a universally applicable criterion based on constituent material properties and operative failure mechanisms is required. A novel mechanistic failure criterion for CFP composites is proposed. The criterion considers resin fracture strength, hackle formation, interfacial debonding, the crack tip plastic zone and interply vs interyarn delamination. Experimental data obtained by mixed-mode testing of continuous fiber-polymer composites and evaluation of the properties of the associated polymer and reinforcement is used to support the criterion.

Polymer Matrix Composites: Guidelines for Characterization of Structural Materials

Author : Composite Materials Handbook – 17 (CMH-17)
Publisher : SAE International
ISBN 13 : 1468604953
Total Pages : 778 pages
Book Rating : 4.4/5 (686 download)

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Book Synopsis Polymer Matrix Composites: Guidelines for Characterization of Structural Materials by : Composite Materials Handbook – 17 (CMH-17)

Download or read book Polymer Matrix Composites: Guidelines for Characterization of Structural Materials written by Composite Materials Handbook – 17 (CMH-17) and published by SAE International. This book was released on 2022-09-06 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume of this six-volume compendium contains guidelines for determining the properties of polymer matrix composite material systems and their constituents, as well as the properties of generic structural elements, including test planning, test matrices, sampling, conditioning, test procedure selection, data reporting, data reduction, statistical analysis, and other related topics. Special attention is given to the statistical treatment and analysis of data. Volume 1 contains guidelines for general development of material characterization data as well as specific requirements for publication of material data in CMH-17. The primary purpose of this volume of the handbook is to document industry best-practices for engineering methodologies related to testing, data reduction, and reporting of property data for current and emerging composite materials. It is used by engineers worldwide in designing and fabricating products made from composite materials. The Composite Materials Handbook, referred to by industry groups as CMH-17, is a six-volume engineering reference tool that contains thousands of records of the latest test data for polymer matrix, metal matrix, ceramic matrix, and structural sandwich composites. CMH-17 provides information and guidance necessary to design, analyze, fabricate, certify and support end items using composite materials. It includes properties of composite materials that meet specific data requirements as well as guidelines for design, analysis, material selection, manufacturing, quality control, and repair.

Failure Analysis and Fractography of Polymer Composites

Author : Emile Greenhalgh
Publisher : Elsevier
ISBN 13 : 1845696816
Total Pages : 608 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Failure Analysis and Fractography of Polymer Composites by : Emile Greenhalgh

Download or read book Failure Analysis and Fractography of Polymer Composites written by Emile Greenhalgh and published by Elsevier. This book was released on 2009-09-28 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing use of polymer composites is leading to increasing demand for fractographic expertise. Fractography is the study of fracture surface morphologies and it gives an insight into damage and failure mechanisms, underpinning the development of physically-based failure criteria. In composites research it provides a crucial link between predictive models and experimental observations. Finally, it is vital for post-mortem analysis of failed or crashed polymer composite components, the findings of which can be used to optimise future designs.Failure analysis and fractography of polymer composites covers the following topics: methodology and tools for failure analysis; fibre-dominated failures; delamination-dominated failures; fatigue failures; the influence of fibre architecture on failure; types of defect and damage; case studies of failures due to overload and design deficiencies; case studies of failures due to material and manufacturing defects; and case studies of failures due to in-service factors.With its distinguished author, Failure analysis and fractography of polymer composites is a standard reference text for researchers working on damage and failure mechanisms in composites, engineers characterising manufacturing and in-service defects in composite structures, and investigators undertaking post-mortem failure analysis of components. The book is aimed at both academic and industrial users, specifically final year and postgraduate engineering and materials students researching composites and industry designers and engineers in aerospace, civil, marine, power and transport applications. Examines the study of fracture surface morphologies in uderstanding composite structural behaviour Discusses composites research and post-modern analysis of failed or crashed polymer composite components Provides an overview of damage mechanisms, types of defect and failure criteria

Mechanical Testing of Advanced Fibre Composites

Author : J M Hodgkinson
Publisher : Woodhead Publishing
ISBN 13 : 9781855733121
Total Pages : 382 pages
Book Rating : 4.7/5 (331 download)

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Book Synopsis Mechanical Testing of Advanced Fibre Composites by : J M Hodgkinson

Download or read book Mechanical Testing of Advanced Fibre Composites written by J M Hodgkinson and published by Woodhead Publishing. This book was released on 2000-10-27 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is concerned with the often very complex problems composite materials can present in the testing of their structural performance.

Failure Mode and Effects Analysis (FMEA)

Author :
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Failure Mode and Effects Analysis (FMEA) by :

Download or read book Failure Mode and Effects Analysis (FMEA) written by and published by . This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Numerical Simulation of Delamination Growth in Composite Materials

Author : P. P. Camanho
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Numerical Simulation of Delamination Growth in Composite Materials by : P. P. Camanho

Download or read book Numerical Simulation of Delamination Growth in Composite Materials written by P. P. Camanho and published by . This book was released on 2001 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of decohesion elements for the simulation of delamination in composite materials is reviewed. The test methods available to measure the interfacial fracture toughness used in the formulation of decohesion elements are described initially. After a brief presentation of the virtual crack technique most widely used to simulate delamination growth, the formulation of interfacial decohesion elements is described. Problems related with decohesion element constitutive equations, mixed-mode crack growth, element numerical integration and solution procedures are discussed. Based on these investigations, it is concluded that the use of interfacial decohesion elements is a promising technique that avoids the need for a pre-existing crack and pre-interfacial decohesion elements is a promising technique that avoids the need for a pre-existing crack and predefined crack paths, and that these elements can be used to simulate both delamination onset and growth.

Impact Engineering of Composite Structures

Author : Serge Abrate
Publisher : Springer Science & Business Media
ISBN 13 : 3709105234
Total Pages : 409 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Impact Engineering of Composite Structures by : Serge Abrate

Download or read book Impact Engineering of Composite Structures written by Serge Abrate and published by Springer Science & Business Media. This book was released on 2011-02-24 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an introduction to the mechanics of composite materials, written for graduate students and practitioners in industry. It examines ways to model the impact event, to determine the size and severity of the damage and discusses general trends observed during experiments.

Dynamic Deformation, Damage and Fracture in Composite Materials and Structures

Author : Vadim Silberschmidt
Publisher : Woodhead Publishing
ISBN 13 : 0081000839
Total Pages : 618 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Dynamic Deformation, Damage and Fracture in Composite Materials and Structures by : Vadim Silberschmidt

Download or read book Dynamic Deformation, Damage and Fracture in Composite Materials and Structures written by Vadim Silberschmidt and published by Woodhead Publishing. This book was released on 2016-01-23 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials, with their higher exposure to dynamic loads, have increasingly been used in aerospace, naval, automotive, sports and other sectors over the last few decades. Dynamic Deformation, Damage and Fracture in Composite Materials and Structures reviews various aspects of dynamic deformation, damage and fracture, mostly in composite laminates and sandwich structures, in a broad range of application fields including aerospace, automotive, defense and sports engineering. As the mechanical behavior and performance of composites varies under different dynamic loading regimes and velocities, the book is divided into sections that examine the different loading regimes and velocities. Part one examine low-velocity loading and part two looks at high-velocity loading. Part three then assesses shock and blast (i.e. contactless) events and the final part focuses on impact (contact) events. As sports applications of composites are linked to a specific subset of dynamic loading regimes, these applications are reviewed in the final part. Examines dynamic deformation and fracture of composite materials Covers experimental, analytical and numerical aspects Addresses important application areas such as aerospace, automotive, wind energy and defence, with a special section on sport applications

The Virtual Crack Closure Technique: History, Approach and Applications

Author : Ronald Krueger
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis The Virtual Crack Closure Technique: History, Approach and Applications by : Ronald Krueger

Download or read book The Virtual Crack Closure Technique: History, Approach and Applications written by Ronald Krueger and published by . This book was released on 2002 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the virtual crack closure technique is presented. The approach used is discussed, the history summarized, and insight into its applications provided. Equations for two-dimensional quadrilateral elements with linear and quadratic shape functions are given. Formula for applying the technique in conjuction with three-dimensional solid elements as well as plate/shell elements are also provided. Necessary modifications for the use of the method with geometrically nonlinear finite element analysis and corrections required for elements at the crack tip with different lengths and widths are discussed. The problems associated with cracks or delaminations propagating between different materials are mentioned briefly, as well as a strategy to minimize these problems. Due to an increased interest in using a fracture mechanics based approach to assess the damage tolerance of composite structures in the design phase and during certification, the engineering problems selected as examples and given as references focus on the application of the technique to components made of composite materials.

Government Reports Announcements & Index

Author :
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fracture, Fatigue, Failure and Damage Evolution, Volume 8

Author : Alan T. Zehnder
Publisher : Springer
ISBN 13 : 3319421956
Total Pages : 155 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Fracture, Fatigue, Failure and Damage Evolution, Volume 8 by : Alan T. Zehnder

Download or read book Fracture, Fatigue, Failure and Damage Evolution, Volume 8 written by Alan T. Zehnder and published by Springer. This book was released on 2016-09-20 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture, Fatigue, Failure and Damage Evolution, Volume 8 of the Proceedings of the 2016 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the eighth volume of ten from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of areas, including: In-situ Techniques for Fracture & Fatigue General Topics in Fracture & Fatigue Fracture & Fatigue of Composites Damage, Fracture, Fatigue & Durability Interfacial Effects in Fracture & Fatigue Damage Detection in Fracture & Fatigue