Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
In-situ observation and numerical study of dynamic delamination in tapered composite laminates
Date
2023-05-15
Author
Dashatan, Saeid Hosseinpour
Parnas, Kemal Levend
Çöker, Demirkan
Bozkurt, Mirac Onur
Ozen, Emine Burcin
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
175
views
0
downloads
Cite This
In this study, dynamic delamination behavior in asymmetric GFRP tapered laminates under quasi-static tensile loading is investigated experimentally and numerically. Abaqus/Explicit cohesive interface modeling is utilized to simulate delamination initiation and dynamic propagation. Time-frame based delamination mechanisms predicted in simulations are compared to in-situ high-speed camera images for four geometrically asymmetric specimens containing grouped and ungrouped drop-off types. It is observed that the ply drop-off type governs not only the strength of the tapered beam but also the delamination progression path and its stability. For specimens with consecutive drop-offs, a good agreement is obtained between the experimental observations and numerical results in terms of delamination onset location, propagation patterns, and instability of delamination growth. For specimens with ungrouped drop-offs, a modified cohesive strength approach is shown to be necessary to enhance the aforementioned correlations. The effect of such modification on delamination propagation manner is explicitly shown for the first time in this paper.
Subject Keywords
Cohesive interface modeling
,
Delamination
,
Laminates
,
Ply drop-off
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85149699083&origin=inward
https://hdl.handle.net/11511/102676
Journal
Composite Structures
DOI
https://doi.org/10.1016/j.compstruct.2023.116841
Collections
Department of Aerospace Engineering, Article
Suggestions
OpenMETU
Core
Semi analytical study of stress and deformation analysis of anisotropic shells of revolution including first order transverse shear deformation
Oygür, Özgür Sinan; Kayran, Altan; Department of Aerospace Engineering (2008)
In this study, anisotropic shells of revolution subject to symmetric and unsymmetrical static loads are analysed. In derivation of governing equations to be used in the solution, first order transverse shear effects are included in the formulation. The governing equations can be listed as kinematic equations, constitutive equations, and equations of motion. The equations of motion are derived from Hamilton’s principle, the constitutive equations are developed under the assumptions of the classical laminatio...
3D Simulation of Dynamic Delamination in Curved Composite Laminates
Ata, Tamer Tahir; Çöker, Demirkan (Elsevier BV; 2019-01-01)
In this study, dynamic fracture of curved carbon fiber reinforced plastic (CFRP) laminates under quasi-static loading is investigated using explicit three dimensional (3D) finite element method in conjunction with Cohesive Zone Modelling (CZM). The simulations are based on the experimental studies conducted by Tasdemir (2018). Three dimensional finite element models of two different ply architectures (unidirectional and fabric laminate) are generated corresponding to the experimental configurations. The com...
Numerical investigation of delamination in L-shaped cross-ply composite bracket
Gümüş, M.; Gözlüklü, B.; Çöker, Demirkan (null; 2014-01-01)
Interlaminar normal stresses are induced with interlaminar shear stresses leading to mixed-mode delamination (MMD) in curved cross-ply composite laminates. Dynamic mixed-mode delamination is studied using explicit finite element method and Cohesive Zone Modelling Dynamic response of the specimen is compared with the experiments.
Transient dynamic response of viscoelastic cylinders enclosed in filament wound cylindrical composites
Şen, Özge; Turhan, Doğan; Department of Engineering Sciences (2005)
In this study, transient dynamic response of viscoelastic cylinders enclosed in filament wound cylindrical composites is investigated. Thermal effects, in addition to mechanical effects, are taken into consideration. A generalized thermoelasticity theory which incorporates the temperature rate among the constitutive variables and is referred to as temperature-rate dependent thermoelasticity theory is employed. This theory predicts finite heat propagation speeds. The body considered in this thesis consists o...
DYNAMIC ANALYSIS OF GEARED SHAFT SYSTEMS BY USING A CONTINUOUS SYSTEM MODEL
Şener, Ö Sedat; Özgüven, Hasan Nevzat (Elsevier BV, 1993-09-22)
In this study dynamic mesh forces and dynamic factors in a geared shaft system are studied by using a continuous system model. The system consists of a gear pair, two shafts carrying gears, and two inertias representing drive and load in the system. A continuous system model is used to include the shaft inertias, which are usually disregarded even in most of the sophisticated models. The primary aim of this work is to provide a tool for studying the effect of shaft inertia in gear dynamics, and to present s...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. H. Dashatan, K. L. Parnas, D. Çöker, M. O. Bozkurt, and E. B. Ozen, “In-situ observation and numerical study of dynamic delamination in tapered composite laminates,”
Composite Structures
, vol. 312, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85149699083&origin=inward.