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An Overview of Durability and Damage Tolerance Methodology at NASA Langley Research Center

  • Jonathan B. Ransom
  • Edwards H. Glaessgen
  • James G. Ratcliffe
Conference paper
Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS, volume 37)

Abstract

The NASA Langley Research Center’s Research Directorate provides many of the research and technology development capabilities required by the present and future needs of NASA across three encompassing technology areas, namely, aerodynamics, aerothermodynamics and acoustics (AAA); structures and materials (SM); and Airborne Systems (AirSc). Researchers contribute to nine primary areas of expertise which include structures, hypersonics, materials, flight dynamics and control, measurement sciences, crew systems and aviation operations, aerodynamics, safety critical avionics systems, and acoustics. These areas of expertise cover virtually all of the important disciplines related to flight, including the agency’s main thrusts within structures and materials. Researchers in the structures and materials technology area are constantly working to develop advanced materials to enable efficient, high-performance aerospace concepts; efficient, physics-based analytical and computational methods for multidisciplinary design and analysis; and methods to quantify the behavior, durability, damage tolerance, and overall performance of advanced materials and structures.As part of the structures and materials technology area, the Durability, Damage Tolerance and Reliability Branch (DDTRB) conducts research and technology development of efficient, physics-based analytical and computational methods to enable multidisciplinary design and analysis of advanced materials and structures for aerospace applications, including evaluation of concepts, quantification of behavior, durability, and damage tolerance, and validation of performance.DDTRB has contributed to the development and implementation of many fracture mechanics methods aimed at predicting and characterizing damage in both metallic and composite materials. Engineering fracture mechanics plays a vital role in the development and certification of virtually every aerospace vehicle that has been developed since the mid-twentieth century. This chapter presents a selection of computational, analytical, and experimental strategies and methodologies that have been developed by the branch for simulating and assessing damage growth under monotonic and cyclic loading and for characterizing the damage tolerance of aerospace structures. It includes continuum-based mechanics as well as a new paradigm focused on simulating and characterizing fundamental damage processes, called damage science.

Keywords

Fatigue Crack Growth Friction Stir Welding Crack Closure Linear Elastic Fracture Mechanic Strain Energy Release Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors would like to thank the members of the Durability, Damage Tolerance, and Reliability Branch and for their contributions to this chapter. In particular, the authors are grateful to Dr. Ronald Kruger of the Durability, Damage Tolerance, and Reliability Branch and Dr. Bourama Toni from Virginia State University for their thorough review of this chapter.

References

  1. 1.
    Smith, S.W., Newman, J.A., James, M.A., Donald, J.K., Brazill, R.L., Schultz, R.W., Blair, A., Seshadri, B.R.: “An On-line Methodology for Measuring Residual Stress and Producing Reliable Fatigue Life Assessments,” Presented at the 9th International ASTM/ESIS Symposium on Fatigue and Fracture Mechanics. (37th ASTM National Symposium on Fatigue and Fracture Mechanics), May 20–22, 2009, Vancouver, BCGoogle Scholar
  2. 2.
    ASTM International Standard E647–08: “Standard Test Method for Measurement of Fatigue Crack Growth Rates” 2008 ASTM International Annual Book of Standards, Vol. 03.01, ASTM International, West Conshohocken, PAGoogle Scholar
  3. 3.
    Newman, Jr. J.C., Yamada, Y.: Compression precracking methods to generate near-threshold fatigue-crack growth-rate data. Int. J. Fatig. 32, 879–885 (2010)CrossRefGoogle Scholar
  4. 4.
    Forth, S.C., Newman, Jr. J.C., Forman, R.G.: On generating fatigue crack growth thresholds. Int. J. Fatig. 25, 9–15 (2003)CrossRefGoogle Scholar
  5. 5.
    Elber, W.: Fatigue crack closure under cyclic tension. Eng. Fract. Mech. 2, 37–45 (1970)CrossRefGoogle Scholar
  6. 6.
    Newman, J.A., Piascik, R.S.: Plasticity and roughness closure interactions near the fatigue crack growth threshold. In: Reuter, W.G., Piascik, R.S. (eds.) Fatigue and Fracture Mechanics: 33rd volume, ASTM STP 1417. ASTM International, West Conshohocken, PA (2002)Google Scholar
  7. 7.
    Suresh, S.: Fatigue of Materials. Cambridge University Press, Cambridge (1991)Google Scholar
  8. 8.
    Newman, J.A.: The effects of load ratio on threshold fatigue crack growth of aluminum alloys. Ph.D. dissertation, Virginia Polytechnic Institute and State University (2000)Google Scholar
  9. 9.
    Piascik, R.S., Newman, Jr. J.C, Underwood, J.H.: The extended compact tension specimen. Fatig. Fract. Eng. Mater. Struct. 20, 559–563 (1997)CrossRefGoogle Scholar
  10. 10.
    Fracture Technology Associates: User’s Reference Manual for Automated Fatigue Crack Growth (Compliance), Version 2.43, Fracture Technology Associates, Bethlehem, PAGoogle Scholar
  11. 11.
    Deans, W.F., Jolly, C.B., Poyton, W.A., Watson, W.: A strain gauging technique for monitoring fracture specimens during environmental testing. Strain 13, 152–154 (1977)CrossRefGoogle Scholar
  12. 12.
    Sutton, M.A., Orteu, J.-J., Schreier, H.W.: Image Correlation for Shape, Motion and Deformation Measurements. Springer Science Business Media, New York, NY (2009)Google Scholar
  13. 13.
    Elber, W.: Crack Closure and Crack Growth Measurements in Surface-Flawed Titanium Alloy Ti-6Al-4V, NASA TN-D-8010 (1975)Google Scholar
  14. 14.
    Leser, W.P., Newman, J.A., Johnston, W.M.: Fatigue Crack Closure Analysis Using Digital Imaging Correlation, NASA TM-2010–216695 (2010)Google Scholar
  15. 15.
    Riddell, W.T., Piascik, R.S.: Stress Ratio Effects on Crack Opening Loads and Crack Growth Rates in Aluminum Alloy 2024, NASA/TM-1998–206929Google Scholar
  16. 16.
    Hutchinson, J.W.: Plasticity at the micron scale. Int. J. Solid Struct.37, 225–238 (2000)MathSciNetMATHCrossRefGoogle Scholar
  17. 17.
    Hochhalter, J.D., Littlewood, D.J., Christ, R.J., Veilleux, M.G., Bozek, J.E., Ingraffea, A., Maniatty, A.M.: A geometric approach to modeling microstructurally small fatigue crack formation: II. Physically-based modeling of microstructure-dependent slip localization and actuation of the crack nucleation mechanism in AA 7075-T651. Model. Simulat. Mater. Sci. Eng. 18 (2010)Google Scholar
  18. 18.
    Bozek, J.E., Hochhalter, J.D., Veilleux, M.G., Liu, M., Heber, G., Sintay, S.D., Rollett, A.D., Littlewood, D.J., Maniatty, A.M., Weiland, H., Christ Jr., R.J., Payne, J., Welsh, G., Harlow, D.G., Wawrzynek, P.A., Ingraffea, A.R.: A geometric approach to modeling microstructurally small fatigue crack formation: I. Probabilistic simulation of constituent particle cracking in AA 7075-T651. Model. Simulat. Mater. Sci. Eng. 16 (2008)Google Scholar
  19. 19.
    Sun, S., Adams, B.L., King, W.E.: Observations of lattice curvature near the interface of a deformed aluminum crystal. Phil. Mag. A 80(1), 9–25 (2000)CrossRefGoogle Scholar
  20. 20.
    Kysar, J.W., Briant, C.L.: Crack tip deformation fields in ductile single crystals. Acta Mater. 50, 2367–2380 (2002)CrossRefGoogle Scholar
  21. 21.
    Nye, J.F.: Some geometrical relations in dislocated crystals. Acta Metall. 1, 153–162 (1953)CrossRefGoogle Scholar
  22. 22.
    Gupta, V.K.: Ph.D. Dissertation, University of Virginia, Charlottesville (2009)Google Scholar
  23. 23.
    Arsenlis, A., Cai, W., Tang, M., Rhee, M., Oppelstrup, T., Hommes, G., Pierce, T.G., Buylatov, V.V.: Enabling strain hardening simulations with dislocation dynamics. Model. Simulat. Mater. Sci. Eng. 15, 553–595 (2007)CrossRefGoogle Scholar
  24. 24.
    Glaessgen, E.H., Saether, E., Hochhalter, J.D., Yamakov, V.: Modeling near-crack-tip plasticity at nano to micro scales. To be presented at the 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference and Exhibit, Orlando, FL, April 12–15, 2010Google Scholar
  25. 25.
    Allen M.P., Tildesley D.J.: Computer Simulation of Liquids. Oxford science publications, Oxford (1987)MATHGoogle Scholar
  26. 26.
    Saether, E., Yamakov, V., Glaessgen, E.H.: An embedded statistical method for coupling molecular dynamics and finite element analyses. Int. J. Numer. Meth. Eng. 78, 1292–1319 (2009)MathSciNetMATHCrossRefGoogle Scholar
  27. 27.
    Yamakov, V., Saether, E., Phillips, D.R., Glaessgen, E.H.: Molecular-dynamics simulation-based cohesive zone representation of intergranular fracture processes in aluminum. J. Mech. Phys. Solid 54, 1899–1928 (2006)MATHCrossRefGoogle Scholar
  28. 28.
    Farkas, D., Duranduru, M., Curtin, W.A., Ribbens, C.: Multiple-dislocation emission from the crack tip in the ductile fracture of Al. Phil. Mag. A 81, 1241–1255 (2001)CrossRefGoogle Scholar
  29. 29.
    Hai, S., Tadmor, E.B.: Deformation twinning at aluminum crack tips. Acta Mater. 51, 117–131 (2003)MathSciNetCrossRefGoogle Scholar
  30. 30.
    Tadmor, E. B., Hai, S.: A peierls criterion for the onset of deformation twinning at a crack tip. J. Mech. Phys. Solid 51, 765–793 (2003)MathSciNetMATHCrossRefGoogle Scholar
  31. 31.
    Warner, D.H., Curtin, W.A., Qu, S.: Rate dependence of crack-tip processes predicts twinning trends in f.c.c. metals. Nat. Mater. 6, 876–880 (2007)Google Scholar
  32. 32.
    Yamakov, V., Saether, E., Glaessgen, E.: A continuum-atomistic analysis of transgranular crack propagation in aluminum. In: 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference and Exhibit, Palm Springs, CA, May 4–7, 2009Google Scholar
  33. 33.
    ASTM International Standard D5528–01: Standard test method for Mode I interlaminar fracture toughness of unidirectional fiber-reinforced polymer matrix composites. 2008 ASTM International Annual Book of Standards, vol. 15.03. ASTM International, West Conshohocken, PA (2007)Google Scholar
  34. 34.
    ASTM International Standard D6415/D 6415M-06a: Standard test method for measuring the curved beam strength of fiber-reinforced polymer-matrix composites. 2008 ASTM International Annual Book of Standards, vol. 15.03. ASTM International, West Conshohocken, PAGoogle Scholar
  35. 35.
    Paris, I.: Mode I fatigue delamination propagation of unidirectional fiber-reinforced polymer matrix composites (DCB). ASTM International Committee D30 Inter-laboratory Study, ILS # 0189 (2009)Google Scholar
  36. 36.
    ASTM International Standard D6115–97: Standard test method for Mode I fatigue delamination growth onset of unidirectional fiber-reinforced polymer matric composites. 2008 ASTM International Annual Book of Standards, vol. 15.03. ASTM International, West Conshohocken, PA (2004)Google Scholar
  37. 37.
    Rybicki, E.F., Kanninen, M.F.: A finite element calculation of stress intensity factors by a modified crack closure integral. Eng. Fract. Mech. 9, 931–938 (1977)CrossRefGoogle Scholar
  38. 38.
    Krueger, R.: An Approach to Assess Delamination Propagation Simulation Capabilities in Commercial Finite Element Codes, NASA/TM-2008–215123, 2008Google Scholar
  39. 39.
    Poe, Jr., C.C., Harris, C.E.: Mechanics of Textile Composites Conference, NASA Contractor Report, NASA/CP-3311, Parts 1 and 2, 1995Google Scholar
  40. 40.
    Freitas, G., Magee, C., Boyce, J., Bott, R.: Service tough composite structures using the Z-direction reinforcement process. In: Proceedings of the 9th DoD/NASA/FAA Conference on Fibrous Composites in Structural Design, Lake Tahoe, Nevada, USA, November 1991, NASA-CR-198718Google Scholar
  41. 41.
    Ratcliffe, J., O’Brien, T.K.: Discrete spring model for predicting delamination growth in Z-fiber reinforced DCB specimens. NASA Technical Memorandum, NASA/TM-2004–213019, 2004Google Scholar
  42. 42.
    Cartié, D.D.R., Partridge, I.K.: A finite element tool for parametric studies of delamination In Z-pinned laminates. In: Proceedings of the Sixth International Conference on Deformation and Fracture of Composites, pp. 49–55, Manchester, UK, April 2001Google Scholar
  43. 43.
    Robinson, P., Das, S.: Mode I DCB testing of Z-fiber reinforced laminates: a simple model for the investigation of data reduction strategies. J. Eng. Fract. Mech. 71(3), 345–364 (2004)CrossRefGoogle Scholar
  44. 44.
    Steeves, C.A.: Mechanics of failure in composite structures. Ph.D. Dissertation, Department of Engineering, University of Cambridge, Cambridge (2001)Google Scholar
  45. 45.
    Sun, C.T.: Novel methods for testing and modelling composite materials and laminates. In: Proceedings of the Second International Conference on Composites Testing and Model Identification, CompTest 2004, Bristol, England, September, 2004Google Scholar
  46. 46.
    Sun, C.T., Jun, A.W.: Compressive strength of unidirectional composites with matrix nonlinearity. Compos. Sci. Tech. 52(4), 577–587 (1994)CrossRefGoogle Scholar
  47. 47.
    Fleck, N.A., Shu, J.Y.: Microbuckle initiation in fibre composites: a finite element study. J. Mech. Phys. Solid 43(2), 1887–1918 (1995)MathSciNetMATHCrossRefGoogle Scholar
  48. 48.
    Shu, J.Y., Fleck, N.A.: User’s manual for finite element code for fibre microbuckling. Cambridge University Engineering Department C-MATS Technical Report 224 (ISSN 0309–6505), May, 1995Google Scholar
  49. 49.
    Liu, D., Fleck, N.A.: User’s manual II for finite element code FLASH for fibre microbuckling. Cambridge University Engineering Department C-MICROMECH Technical Report 29 (ISSN 0309–7420), November, 1999Google Scholar
  50. 50.
    O’Brien, T.K., Krueger, R.: Influence of compression and shear on the strength of composite laminates with Z-pinned reinforcement. Appl. Compos. Mater. 13, 173–189 (2006)CrossRefGoogle Scholar
  51. 51.
    Budiansky, B., Fleck, N.A.: Compressive failure of fibre composites. J. Mech. Phys. Solid 41(1), 183–211 (1993)CrossRefGoogle Scholar
  52. 52.
    Weaver, C.: Evaluation of Mode I fracture mechanics test methods for sandwich composites. M.Sc Thesis, University of Utah, Salt Lake City, UT (2009)Google Scholar
  53. 53.
    Ratcliffe, J.: Sizing single cantilever beam specimens for characterizing facesheet/core peel debonding in sandwich structure, NASA Technical Publication, NASA/TP-2010–216169, 2010Google Scholar
  54. 54.
    Li, X., Carlsson, L.A.: Elastic foundation analysis of tilted sandwich debond (TSD) specimen. J. Sandwich Struct. Mater. 2, 3–32 (2000)Google Scholar
  55. 55.
    Cvitkovich, M.K., Jackson, W.C.: Compressive failure mechanisms in composite sandwich structures. J. Am. Helicopter Soc. 44(4), 260–268 (1999)CrossRefGoogle Scholar
  56. 56.
    Ratcliffe J., Jackson, W.C., Schaff, J.: Compression strength prediction of impact-damaged composite sandwich panels. In: Proceedings of the American Helicopter Society 60th Annual Forum, Baltimore, MD, June 7–10, 2004Google Scholar
  57. 57.
    Soutis, C., Fleck, N.A.: Static compression failure of carbon fibre T800/924C composite plate with a single hole. J. Compos. Mater. 24, 536–558 (1990)CrossRefGoogle Scholar
  58. 58.
    Ratcliffe, J., Jackson, W.C.: A Finite Element Analysis for Predicting the Residual Compressive Strength of Impact-Damaged Sandwich Panels. NASA Technical Memorandum, NASA/TM-2008–215341, 2008Google Scholar
  59. 59.
    Fox, R.F., Schulteisz, C.R., Reeder, J.R., Jensen, B.J.: Materials examination of the vertical stabilizer from American Airlines Flight 587. In: Proceedings of Materials Science and Technology, vol. 2, pp. 171–185, 2005Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Jonathan B. Ransom
    • 1
  • Edwards H. Glaessgen
    • 1
  • James G. Ratcliffe
    • 1
  1. 1.Durability, Damage Tolerance and Reliability BranchNASA Langley Research CenterHamptonUSA

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