A meshless grain element for micromechanical analysis

A. Barut, I. Guven, Erdogan Madenci, D. R. Ambur

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

Abstract

This study concerns the development of a 2-D meshless grain element for elastic deformation and intergranular damage initiation and propagation in polycrystalline fee metals under static loading. A nonlinear constitutive model known as the cohesive zone model is employed to represent the inelastic interaction between the grain boundaries; thus permitting grain boundary opening and sliding. The cohesive model describes the deformation characteristics of the grain boundaries through a nonlinear relation between the effective grain boundary tractions and displacements. Because of the presence of nonlinear behavior along the cohesive grain boundaries, the method utilizes the principle of virtual work in conjunction with the meshless formulation in the derivation of the system of nonlinear incremental equilibrium equations. The solution is obtained via an incremental procedure based on the Taylor series expansion about the current equilibrium configuration. The fidelity of the present approach is verified by considering simple polycrystalline metals of only a few grains.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages1352-1371
Number of pages20
Volume2
StatePublished - 2005
Event46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Austin, TX, United States
Duration: Apr 18 2005Apr 21 2005

Other

Other46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityAustin, TX
Period4/18/054/21/05

Fingerprint

Grain boundaries
Taylor series
Elastic deformation
Constitutive models
Metals

ASJC Scopus subject areas

  • Architecture

Cite this

Barut, A., Guven, I., Madenci, E., & Ambur, D. R. (2005). A meshless grain element for micromechanical analysis. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 2, pp. 1352-1371)

A meshless grain element for micromechanical analysis. / Barut, A.; Guven, I.; Madenci, Erdogan; Ambur, D. R.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 2 2005. p. 1352-1371.

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

Barut, A, Guven, I, Madenci, E & Ambur, DR 2005, A meshless grain element for micromechanical analysis. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 2, pp. 1352-1371, 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Austin, TX, United States, 4/18/05.
Barut A, Guven I, Madenci E, Ambur DR. A meshless grain element for micromechanical analysis. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 2. 2005. p. 1352-1371
Barut, A. ; Guven, I. ; Madenci, Erdogan ; Ambur, D. R. / A meshless grain element for micromechanical analysis. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 2 2005. pp. 1352-1371
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