REAL

Interface fracture in orthotropic composite plates using second-order shear deformation theory

Szekrényes, András (2013) Interface fracture in orthotropic composite plates using second-order shear deformation theory. International Journal of Damage Mechanics, 22 (8). pp. 1161-1185. ISSN 1056-7895

[img]
Preview
Text
Szekrenyes_A_IJDM_2013.pdf

Download (1MB) | Preview
Official URL: http://ijd.sagepub.com/

Abstract

The second-order shear deformation theory is used in this study to calculate the stresses and the energy release rates in orthotropic composite plates. A novel double-plate system is utilized with the imposition of the proper kinematic constraints in the interface plane of a double-plate system. The governing equations of the system were derived and as a demonstrative example a simply supported plate subjected to a point force was analyzed. Using Levy plate formulation, the plate problem was solved by a state-space model, incorporating four different regions. The distribution of the stress resultants and the interlaminar stresses in the uncracked part were also determined. Moreover, the distributions of the mode-II and mode-III energy release rates along the crack front were calculated by the J-integral. The 3D finite element model of the plate was created providing reference data for the analytical model. The results show reasonably good agreement between the analytical and numerical results. Also, the present model eliminates the physical inconsistency of previous models and reveals that under mixed-mode II/III condition, the energy release rate is not contributed by the bending, twisting moments and shear forces at all.

Item Type: Article
Subjects: Q Science / természettudomány > QA Mathematics / matematika > QA74 Analysis / analízis
T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok
Depositing User: Dr. András Szekrényes
Date Deposited: 12 Sep 2015 19:31
Last Modified: 03 Apr 2023 08:31
URI: http://real.mtak.hu/id/eprint/26495

Actions (login required)

Edit Item Edit Item