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Virtual Testing and Predictive Modeling

For Fatigue and Fracture Mechanics Allowables

  • Book
  • © 2009

Overview

Editors:
  1. Bahram Farahmand
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  • Provides cost-effective and efficient approaches to obtain fatigue and fracture data

  • Describes virtual testing techniques that prove adequate life in manufactured structural parts

  • Written with a unique emphasis on applications beneficial to industry professionals

  • Includes supplementary material: sn.pub/extras

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Table of contents (13 chapters)

  1. Front Matter

    Pages i-xxiii
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  2. Virtual Testing and Its Application in Aerospace Structural Parts

    • Bahram Farahmand
    Pages 1-28

  3. Tools for Assessing the Damage Tolerance of Primary Structural Components

    • R. Jones, D. Peng
    Pages 29-45

  4. Cohesive Technology Applied to the Modeling and Simulation of Fatigue Failure

    • Spandan Maiti
    Pages 47-71

  5. Fatigue Damage Map as a Virtual Tool for Fatigue Damage Tolerance

    • Chris A. Rodopoulos
    Pages 73-104

  6. Predicting Creep and Creep/Fatigue Crack Initiation and Growth for Virtual Testing and Life Assessment of Components

    • K.M. Nikbin
    Pages 105-136

  7. Computational Approach Toward Advanced Composite Material Qualification and Structural Certification

    • Frank Abdi, J. Surdenas, Nasir Munir, Jerry Housner, Raju Keshavanarayana
    Pages 137-185

  8. Modeling of Multiscale Fatigue Crack Growth: Nano/Micro and Micro/Macro Transitions

    • G. C. Sih
    Pages 187-219

  9. Multiscale Modeling of Nanocomposite Materials

    • Gregory M. Odegard
    Pages 221-245

  10. Predictive Modeling

    • Michael Doyle
    Pages 247-289

  11. Multiscale Approach to Predicting the Mechanical Behavior of Polymeric Melts

    • R.C. Picu
    Pages 291-319

  12. Prediction of Damage Propagation and Failure of Composite Structures (Without Testing)

    • G. Labeas
    Pages 321-356

  13. Functional Nanostructured Polymer–Metal Interfaces

    • Niranjan A. Malvadkar, Michael A. Ulizio, Jill Lowman, Melik C. Demirel
    Pages 357-369

  14. Advanced Experimental Techniques for Multiscale Modeling of Materials

    • Reza S. Yassar, Hessam M.S. Ghassemi
    Pages 371-398

  15. Back Matter

    Pages 399-407
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Keywords

About this book

Thematerialsusedinmanufacturingtheaerospace,aircraft,automobile,andnuclear parts have inherent aws that may grow under uctuating load environments during the operational phase of the structural hardware. The design philosophy, material selection, analysis approach, testing, quality control, inspection, and manufacturing are key elements that can contribute to failure prevention and assure a trouble-free structure. To have a robust structure, it must be designed to withstand the envir- mental load throughout its service life, even when the structure has pre-existing aws or when a part of the structure has already failed. If the design philosophy of the structure is based on the fail-safe requirements, or multiple load path design, partial failure of a structural component due to crack propagation is localized and safely contained or arrested. For that reason, proper inspection technique must be scheduled for reusable parts to detect the amount and rate of crack growth, and the possible need for repairing or replacement of the part. An example of a fail-sa- designed structure with crack-arrest feature, common to all aircraft structural parts, is the skin-stiffened design con guration. However, in other cases, the design p- losophy has safe-life or single load path feature, where analysts must demonstrate that parts have adequate life during their service operation and the possibility of catastrophic failure is remote. For example, all pressurized vessels that have single load path feature are classi ed as high-risk parts. During their service operation, these tanks may develop cracks, which will grow gradually in a stable manner.

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