A simplified dynamic low-velocity impact model for sandwich composites based on three-dimensional quasi-static analyses

T. A. Anderson, Erdogan Madenci

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

1 Citation (Scopus)

Abstract

This paper describes a nonlinear single-degree-of-freedom (SDOF) model of low-velocity impact on composite sandwich structures. The stiffness parameters of the model are derived from the results of three-dimensional quasi-static contact analyses of a rigid sphere indenting a multi-layer sandwich laminate. During the course of this investigation, it is determined that an additional term, analogous to viscous damping, is required for the model to account for energy loss due to damage and an empirical fit is required to determine its magnitude for each structure. Once determined, comparisons between low-velocity impact experiments and the nonlinear SDOF model are examined for six different foam and honeycomb sandwich configurations. In each case, a single set of parameters retains its fidelity throughout a range of impact velocities and provides accurate predictions of contact force and contact duration.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages2717-2723
Number of pages7
Volume4
StatePublished - 2001
Externally publishedYes
Event42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, amd Materials Conference and Exhibit Technical Papers - Seattle, WA, United States
Duration: Apr 16 2001Apr 19 2001

Other

Other42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, amd Materials Conference and Exhibit Technical Papers
CountryUnited States
CitySeattle, WA
Period4/16/014/19/01

Fingerprint

Composite materials
Degrees of freedom (mechanics)
Sandwich structures
Laminates
Foams
Energy dissipation
Damping
Stiffness
Experiments

ASJC Scopus subject areas

  • Architecture

Cite this

Anderson, T. A., & Madenci, E. (2001). A simplified dynamic low-velocity impact model for sandwich composites based on three-dimensional quasi-static analyses. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 4, pp. 2717-2723)

A simplified dynamic low-velocity impact model for sandwich composites based on three-dimensional quasi-static analyses. / Anderson, T. A.; Madenci, Erdogan.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 4 2001. p. 2717-2723.

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

Anderson, TA & Madenci, E 2001, A simplified dynamic low-velocity impact model for sandwich composites based on three-dimensional quasi-static analyses. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 4, pp. 2717-2723, 42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, amd Materials Conference and Exhibit Technical Papers, Seattle, WA, United States, 4/16/01.
Anderson TA, Madenci E. A simplified dynamic low-velocity impact model for sandwich composites based on three-dimensional quasi-static analyses. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 4. 2001. p. 2717-2723
Anderson, T. A. ; Madenci, Erdogan. / A simplified dynamic low-velocity impact model for sandwich composites based on three-dimensional quasi-static analyses. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 4 2001. pp. 2717-2723
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