Skip to main content
Log in

A general approach for viscoelastic model validation applied on the analyses of epoxy resin modified by end-functionalized liquid polybutadiene

  • Technical Paper
  • Published:
Journal of the Brazilian Society of Mechanical Sciences and Engineering Aims and scope Submit manuscript

Abstract

The present work presents a general approach for viscoelastic material characterization. The standard solid model and the fractional Zener model are taken into consideration. Model calibration is performed under the formalism of the inverse problems. Model validation and model selection are guided by the philosophy of the verification and validation field. Comparisons between measured data and model predictions take model uncertainties into account through Monte Carlo simulation analysis. This approach is used to calibrate models for two diglycidyl ether of bisphenol A (DGEBA) based epoxy systems modified by the incorporation of hydroxyl-terminated polybutadiene (HTPB), namely: DGEBA/HTPB blend (EPH) and DGEBA/HTPB blend modified with NCO groups (EPI). Three different types of tests are considered and a large group of test specimens are analyzed. The constitutive models are used to provide predictions for the loss factor of the materials as well as their confidence intervals. Predictions indicate that EPI presents better performance concerning mechanical energy dissipation than EPH which is highly correlated with the fact that EPI presents rubber particles distributed uniformly in nanometric scale within the epoxy matrix.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13

Similar content being viewed by others

References

  1. Wineman AS, Rajagopal KR (2000) Mechanical response of polymers. Cambridge University Press, Cambridge

    Google Scholar 

  2. Pascault J-P, Williams RJJ (2010) Epoxy polymers: new materials and innovations. Wiley

  3. Ozdemir NG, Zhang T, Hadavinia H, Aspin I, Wang J (2015) Rheological properties, cure characteristics and morphology of acrylonitrile-based nanorubber modified epoxy. J Appl Polym Sci 132(18):41911

    Article  Google Scholar 

  4. Zheng S (2010) Nanostructured epoxy systems by use of block copolymers. In: Pascault JP, Williams RJJ (ed) Epoxy polymers. Wiley

  5. Thomas R, Boudenne A, Ibos L, Candau Y, Thomas S (2010) Thermophysical properties of CTBN and HTPB liquid rubber modified epoxy blends. J Appl Polym Sci 116:3232

    Google Scholar 

  6. Shukla SK, Srivastava D (2006) Blends of modified epoxy resins and carboxyl-terminated polybutadiene. J Appl Polym Sci 100:1802

    Article  Google Scholar 

  7. Soares BG, Dahmouche K, Lima VD, Silva AA, Caplan SPC, Barcia FL (2001) Characterization of nanostructured epoxy networks modified with isocyanate-terminated liquid polybutadiene. J Coll Interface Sci 358:338–346

    Article  Google Scholar 

  8. Barcia FLB, Soares BG, Sampaio E (2004) Adhesive properties of epoxy resin modified by end-functionalized liquid polybutadiene. J Appl Polym Sci 93(5):2370–2378

    Article  Google Scholar 

  9. Mainardi F (2005) Fractional calculus and waves in linear viscoelasticity. Imperial College, London

    Google Scholar 

  10. Beck KJ, Arnold VJ (1977) Parameter estimation in engineering and science. Wiley, New York

    MATH  Google Scholar 

  11. Kaipio J, Somersalo E (2005) Statistical and computational inverse problems. Springer, New York

    MATH  Google Scholar 

  12. Aster RC, Borchers C and Thurber CH (2013), Parameter Estimation and Inverse Problems. Second Edition. Academic Press

  13. Oberkampf WL, Barone MF (2006) Measurements of agreement between computational and experiment: validation metrics. J Comput Phys 217:5–36

    Article  MATH  Google Scholar 

  14. Robert CP, Casella G (2005) Monte Carlo statistical methods, Second edn. Springer, New York, USA

  15. AIAA-G-077 (1998) Guide for verification and validation of computational fluid dynamics simulations. AIAA, VA, USA

  16. ASME V&V 10–2006 (2006) Guide for verification and validation in computational solid mechanics. ASME, New York, USA

  17. ASTM D638–10(2010) Standard test method for tensile properties of plastics. ASTM, Pennsylvania, USA

  18. ASTM D2990–01(2001) Standard test methods for tensile, compressive, and flexural and creep-rupture of plastics. ASTM, Pennsylvania, USA

  19. Costa Mattos HS, Martins SA (2013) Plastic behaviour of an epoxy polymer under cyclic tension. Polym Test 32:1–8

    Article  Google Scholar 

  20. Lion A (1997) On the thermodynamics of fractional damping elements. Contin Mech Thermodyn 9:83–96

    Article  MathSciNet  MATH  Google Scholar 

  21. Borges FCL, Castello DA, Magluta C, Rochinha FA, Roitman N (2015) An experimental assessment of internal variables constitutive models for viscoelastic materials. Mech Syst Signal Process (s50–s51):27-40

  22. Christensen R (2003) Theory of viscoelasticity. Dover, New York

    Google Scholar 

  23. Yin D, Duan X, Zhou X, Li Y (2014) Time-based fractional longitudinal-transverse strain model for viscoelastic solids. Mech Time Depend Mater 18:329–337

  24. Zhang G, Yang H, Xu Y (2015) A surrogate-model-based identification of fractional viscoelastic constitutive parameters. Mech Time Depend Mater 1:1–19

    Article  Google Scholar 

  25. Ghoreishy MHR, Firouzbakht M, Naderi G (2014) Parameter determination and experimental verification of Bergstr\(\ddot{o}\)m-Boyce hysteresis model for rubber compounds reinforced by carbon black blends. Mater Des 53:457–465

    Article  Google Scholar 

  26. Podlubny I (2000) Matrix approach to discrete fractional calculus.Fract Calculus ApplInt J Theory Appl 34:359–386

    MathSciNet  MATH  Google Scholar 

  27. Li W, Chen W, Jiang Z, Lu Z, Liu Y (2014) New validation metrics for models with multiple correlated responses. Reliab Eng Syst Saf 127:1–11

    Article  Google Scholar 

  28. Ling Y, Mahadevan S (2013) Quantitative model validation techniques: new insights. Reliab Eng Syst Saf 111:217–231

    Article  Google Scholar 

  29. Smith RC (2014) Uncertainty quantification: theory, implementation and applications. SIAM, Philadelphia, PA, USA

  30. Kiranyaz S, Ince T, Gabbouj M (2014) Multidimensional particle swarm optimization for machine learning and pattern recognition. Conference on Neural Networks (ed), vol 4. Springer, Berlin, Heidelberg

  31. Podlubny I (1999) Fractional differential equations. Academic, San Diego, California, USA

  32. Wollscheid D, Lion A (2014) The benefit of fractional derivatives in modelling the dynamics of filler-reinforced rubber under large strains: a comparison with the Maxwell-element approach. Comput Mech 53:1015–1031

    Article  MathSciNet  MATH  Google Scholar 

  33. Tschogel NW, Knauss WG, Emri I (2002) Poisson’s ratio in linear viscoelasticity—a critical review. Mech Time Depend Mater 6:3–51

    Article  Google Scholar 

  34. Lakes RS, Wineman A (2006) On Poisson’s ratio in linearly viscoelastic solids. J Elast 85:45–63

    Article  MathSciNet  MATH  Google Scholar 

Download references

Acknowledgments

The authors would like to express their gratitude to the National Council for Scientific and Technological Development (CNPq) for its financial support under Grant Number 483391/2013, to Coordenação de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) for its financial support under Grant Number AUXPE n 1197/2014, to the National Foundation of Studies and Projects (FINEP) for its financial support under Grant Number 01.12.0226.00.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to D. A. Castello.

Additional information

Technical Editor: Eduardo Alberto Fancello.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Castello, D.A., Borges, L.A., Santos, V.O.B. et al. A general approach for viscoelastic model validation applied on the analyses of epoxy resin modified by end-functionalized liquid polybutadiene. J Braz. Soc. Mech. Sci. Eng. 39, 993–1007 (2017). https://doi.org/10.1007/s40430-016-0565-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40430-016-0565-z

Keywords

Mathematics Subject Classification

Navigation