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Challenges in Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials, Volume 2 pp 161–166Cite as

Viscoelastic and Viscoplastic Behavior of GF/VE [±45]s Laminates

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Abstract

The nonlinear and time dependent stress-strain response of non-crimp fabric (NCF) [±45]s laminates in tension is studied. Testing methodology is suggested to separate and quantify the effect on the inelastic response of damage development, nonlinear viscoelastic effects and viscoplasticity. Material model based on Schapery’s work on viscoelasticity and Zapas viscoplastic functional with added damage terms is used. Simulation is performed and validated with constant stress rate tensile tests, identifying the nonlinear viscoelasticity and viscoplasticity as the major sources of the nonlinear response.

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Author information

Authors and Affiliations

  1. Lulea University of Technology, SE, 971 87, Luleå, Sweden

    J. Varna, K. Giannadakis & R. Joffe

Authors
  1. J. Varna
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  2. K. Giannadakis
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  3. R. Joffe
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Corresponding author

Correspondence to J. Varna .

Editor information

Editors and Affiliations

  1. Sandia National Laboratories, Livermore, 94550, USA

    Bonnie Antoun

  2. University of Colorado, Boulder, 80309-0430, USA

    H. Jerry Qi

  3. AirForce Research Laboratory, Wright-Patterson Air Force Base, 45433, USA

    Richard Hall

  4. University of Dayton Research Institute, Dayton, 45469-0101, USA

    G.P. Tandon

  5. University of Texas-Dallas, Dallas, 75080, USA

    Hongbing Lu

  6. University of Kentucky, Paducah, 42002, USA

    Charles Lu

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© 2013 The Society for Experimental Mechanics

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Varna, J., Giannadakis, K., Joffe, R. (2013). Viscoelastic and Viscoplastic Behavior of GF/VE [±45]s Laminates. In: Antoun, B., Qi, H., Hall, R., Tandon, G., Lu, H., Lu, C. (eds) Challenges in Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4241-7_22

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  • DOI: https://doi.org/10.1007/978-1-4614-4241-7_22

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4614-4240-0

  • Online ISBN: 978-1-4614-4241-7

  • eBook Packages: EngineeringEngineering (R0)

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