Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems

Robert K. Goldberg, Kelly S. Carney, Paul Dubois, Canio Hoffarth, Subramaniam Rajan, Gunther Blankenhorn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The need for accurate material models to simulate the deformation, damage, and failure of polymer matrix composites under impact conditions is becoming critical as these materials are gaining increased usage in the aerospace and automotive communities. In order to address a series of issues identified by the aerospace community as being desirable to include in a next generation composite impact model, an orthotropic, macroscopic constitutive model incorporating both plasticity and damage suitable for implementation within the commercial LS-DYNA computer code is being developed. The plasticity model is based on extending the Tsai-Wu composite failure model into a strain hardening-based orthotropic plasticity model with a non-associative flow rule. The evolution of the yield surface is determined based on tabulated stress-strain curves in the various normal and shear directions and is tracked using the effective plastic strain. To compute the evolution of damage, a strain equivalent semi-coupled formulation is used in which a load in one direction results in a stiffness reduction in multiple material coordinate directions. A detailed analysis is carried out to ensure that the strain equivalence assumption is appropriate for the derived plasticity and damage formulations that are employed in the current model. Procedures to develop the appropriate input curves for the damage model are presented and the process required to develop an appropriate characterization test matrix is discussed.

Original languageEnglish (US)
Title of host publicationEarth and Space 2016
Subtitle of host publicationEngineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
PublisherAmerican Society of Civil Engineers (ASCE)
Pages765-774
Number of pages10
ISBN (Electronic)9780784479971
DOIs
StatePublished - 2016
Event15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2016 - Orlando, United States
Duration: Apr 11 2016Apr 15 2016

Other

Other15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2016
CountryUnited States
CityOrlando
Period4/11/164/15/16

Fingerprint

Composite materials
Plasticity
Polymer matrix composites
Stress-strain curves
Constitutive models
Strain hardening
Loads (forces)
Plastic deformation
Stiffness

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Engineering
  • Building and Construction

Cite this

Goldberg, R. K., Carney, K. S., Dubois, P., Hoffarth, C., Rajan, S., & Blankenhorn, G. (2016). Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems. In Earth and Space 2016: Engineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments (pp. 765-774). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784479971.071

Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems. / Goldberg, Robert K.; Carney, Kelly S.; Dubois, Paul; Hoffarth, Canio; Rajan, Subramaniam; Blankenhorn, Gunther.

Earth and Space 2016: Engineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments. American Society of Civil Engineers (ASCE), 2016. p. 765-774.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Goldberg, RK, Carney, KS, Dubois, P, Hoffarth, C, Rajan, S & Blankenhorn, G 2016, Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems. in Earth and Space 2016: Engineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments. American Society of Civil Engineers (ASCE), pp. 765-774, 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2016, Orlando, United States, 4/11/16. https://doi.org/10.1061/9780784479971.071
Goldberg RK, Carney KS, Dubois P, Hoffarth C, Rajan S, Blankenhorn G. Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems. In Earth and Space 2016: Engineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments. American Society of Civil Engineers (ASCE). 2016. p. 765-774 https://doi.org/10.1061/9780784479971.071
Goldberg, Robert K. ; Carney, Kelly S. ; Dubois, Paul ; Hoffarth, Canio ; Rajan, Subramaniam ; Blankenhorn, Gunther. / Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems. Earth and Space 2016: Engineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments. American Society of Civil Engineers (ASCE), 2016. pp. 765-774
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