Effect of void content on stiffness and strength of composites by a peridynamic analysis and static indentation test

K. W. Colavito, B. Kilic, Emrah Celik, E. Madenci, E. Askari, S. Silling

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

21 Citations (Scopus)

Abstract

Composite structures are susceptible to defects in the form of voids arising from the entrapment of gases or water during impregnation of the fiber reinforcement with resin or during the lay-up process. These manufacturing-induced defects, such as voids and delaminations, influence several mechanical properties. Therefore, it is important to understand the effects of voids on the mechanical properties of composites so that the requirements on void content can be relaxed to reduce manufacturing costs. Although classical continuum mechanics has been applied to explain the behavior of deformable bodies under external loads, the local nature of continuum theory makes it difficult to predict how and when a delamination would occur from porosity. The available special techniques for modeling residual strength prediction by using the finite element method are generally not fully satisfactory because they usually require a failure criterion in advance. This study employs a new approach, known as the peridynamic theory, to capture the effect of void content on the stiffness and residual strength of composite materials. The predictions by the peridynamic theory are compared against the in-house static indentation measurements.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages6691-6701
Number of pages11
Volume7
StatePublished - 2007
Externally publishedYes
Event48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Waikiki, HI, United States
Duration: Apr 23 2007Apr 26 2007

Other

Other48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
CountryUnited States
CityWaikiki, HI
Period4/23/074/26/07

Fingerprint

Indentation
Delamination
Stiffness
Mechanical properties
Defects
Continuum mechanics
Composite materials
Fiber reinforced materials
Composite structures
Impregnation
Resins
Porosity
Finite element method
Gases
Costs
Water

ASJC Scopus subject areas

  • Architecture

Cite this

Colavito, K. W., Kilic, B., Celik, E., Madenci, E., Askari, E., & Silling, S. (2007). Effect of void content on stiffness and strength of composites by a peridynamic analysis and static indentation test. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 7, pp. 6691-6701)

Effect of void content on stiffness and strength of composites by a peridynamic analysis and static indentation test. / Colavito, K. W.; Kilic, B.; Celik, Emrah; Madenci, E.; Askari, E.; Silling, S.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 7 2007. p. 6691-6701.

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

Colavito, KW, Kilic, B, Celik, E, Madenci, E, Askari, E & Silling, S 2007, Effect of void content on stiffness and strength of composites by a peridynamic analysis and static indentation test. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 7, pp. 6691-6701, 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Waikiki, HI, United States, 4/23/07.
Colavito KW, Kilic B, Celik E, Madenci E, Askari E, Silling S. Effect of void content on stiffness and strength of composites by a peridynamic analysis and static indentation test. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 7. 2007. p. 6691-6701
Colavito, K. W. ; Kilic, B. ; Celik, Emrah ; Madenci, E. ; Askari, E. ; Silling, S. / Effect of void content on stiffness and strength of composites by a peridynamic analysis and static indentation test. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 7 2007. pp. 6691-6701
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