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Multiscale Approach to Damage Analysis of Laminated Composite Structures (CROSBI ID 592233)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Ivančević, Darko ; Smojver, Ivica Multiscale Approach to Damage Analysis of Laminated Composite Structures // 2012 3DS SIMULIA Community Conference Proceedings. Providence (RI): Dassault Systèmes, 2012. str. 70-83

Podaci o odgovornosti

Ivančević, Darko ; Smojver, Ivica

engleski

Multiscale Approach to Damage Analysis of Laminated Composite Structures

The presented work depicts results of a two-scale approach to the problem of damage and failure prediction on laminated composite structures. Modeling on the micro-level has enabled insight into the underlying physical processes which lead to homogenized properties of the macro-scale material. In this work, micromechanical analysis has been performed by application of the High Fidelity Generalized Method of Cells theory (HFGMC), which is implemented into Abaqus via user material subroutine VUMAT. As result of the HFGMC analysis, micromechanical strain concentration tensors, which relate the strain tensor on the macro-level to the strain tensors of each subcell, have been computed. This enabled calculation of the stress field within the unit cell, based on the constitutive behavior of each subcell. The first stage of modeling damage prediction in composite structures is application of failure criteria in order to account for damage initiation. This work shows results of the application of the most commonly used micromechanical failure criteria applied for unidirectional composites. The micromechanical failure criteria have been compared to the failure criteria applied at lamina (macro) level. The structural model at the macro-scale is a stiffened composite panel, commonly used in aircraft structures.

Multiscale analysis; Composite materials; Abaqus/Explicit; High Fidelity Generalized Method of Cells.

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Podaci o prilogu

70-83.

2012.

objavljeno

Podaci o matičnoj publikaciji

2012 3DS SIMULIA Community Conference Proceedings

Providence (RI): Dassault Systèmes

Podaci o skupu

2012 3DS SIMULIA Community Conference

predavanje

15.05.2012-17.05.2012

Providence (RI), Sjedinjene Američke Države

Povezanost rada

Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika