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
Simulation of Impact Induced Damage Process in a Carbon/Epoxy Composite Beam
Date
2018-12-01
Author
Bozkurt, Mirac Onur
Çöker, Demirkan
Parnas, Kemal Levend
Metadata
Show full item record
Item Usage Stats
227
views
0
downloads
Cite This
This paper presents numerical investigation of low-velocity impact (LVI) damage process in a unidirectional [0/90]s carbon/epoxy composite beam. Numerical simulations based on finite element method are conducted in ABAQUS/Explicit. A 3D model representing LVI experiments is generated. Matrix and fiber damage mechanisms are simulated by implementation of continuum damage mechanics based composite damage model with Hashin failure initiation criteria via a user-written VUMAT subroutine. Cohesive interfaces are modeled by insertion of cohesive elements between clustered plies. Bilinear traction separation law is introduced to cohesive elements for simulation of delamination damage. The results show that damage forms as a shear crack along the middle clustered 90° plies and the damage formation sequence is in good agreement with experimental results presented in the related literature. Besides, the existence of 3D effects on damage scheme in line impact event is clearly presented.
Subject Keywords
Composite failure
,
Delamination
,
Finite element analysis
,
Low-velocity impact
,
Polymer-matrix composites
URI
https://hdl.handle.net/11511/72734
Conference Name
7th Asian/Australian Rotorcraft Forum (30 Ekim - 01 Kasım 2018)
Collections
Department of Aerospace Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Experimental and computational study of the damage process in CFRP composite beams under low-velocity impact
Topac, O. Tanay; Gözlüklü, Burak; Gürses, Ercan; Çöker, Demirkan (2017-01-01)
Damage process in composites subjected to low-velocity impact is investigated both experimentally and numerically. Drop-weight impact experiments are carried out, in which a model unidirectional [0(5)/90(3)](s) CFRP laminate beam is impacted by a cylindrical head creating an almost uniform two-dimensional loading condition. Initiation and progression of damage, consisting of matrix cracks and delamination, are visualized in real-time via ultra-high-speed camera at rates up to 60,000 fps and the sequence of ...
Simulation of Drop-Weight Impact Test on Composite Laminates using Finite Element Method
Bozkurt, Mirac Onur; Parnas, Levend; Çöker, Demirkan (Elsevier BV; 2019-01-01)
This study presents the simulation of standard drop-weight impact test on a [0/90/0]s composite laminate. For this purpose, a three-dimensional virtual test setup is developed in ABAQUS/Explicit finite element tool. Hemispherical impactor and specimen fixture are modeled as rigid bodies. Composite plate is modeled as a 3-D deformable solid and discretized using a biased mesh for computational efficiency. For simulation of ply damage in the composite laminate, a continuum damage mechanics based damage model ...
Numerical investigation of stiffened composite panel into buckling and post buckling under combined loading
Akay, Erkan; Yaman, Yavuz; Department of Aerospace Engineering (2015)
This thesis presents the investigation of buckling and post buckling behaviour of stiffened thin walled laminated composite aerospace structures subjected to combined in-plane axial and shear loadings. Due to the fact that the state of stress developing especially in the post-buckling stage is quite complicated under the combined loading, the necessary computational model is usually based on Finite Element Modelling (FEM). In this study, after verifying the FEM methodology and completing the sensitivity stu...
Simulation of Drop-Weight Impact Test on Composite Laminates using Finite Element Method
Bozkurt, Mirac Onur; Parnas, Kemal Levend; Çöker, Demirkan (Elsevier, 2019-01-01)
This study presents the simulation of standard drop-weight impact test on a [0/90/0]s composite laminate. For this purpose, a three-dimensional virtual test setup is developed in ABAQUS/Explicit finite element tool. Hemispherical impactor and specimen fixture are modeled as rigid bodies. Composite plate is modeled as a 3-D deformable solid and discretized using a biased mesh for computational efficiency. For simulation of ply damage in the composite laminate, a continuum damage mechanics based damage model ...
Behavior of steel-concrete partially composite beams with channel type shear connectors
Baran, Eray; Topkaya, Cem (2014-06-01)
This paper summarizes the findings of an experimental study investigating the flexural behavior of partially composite beams incorporating channel type shear connectors. Results from monotonic load testing of four full-scale steel-concrete composite beams and a steel beam are presented. The main effort focused on identifying the variation of strength and stiffness properties of beams with various degrees of partial composite action. Behavior of channel shear connectors in the composite beam specimens is rel...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. O. Bozkurt, D. Çöker, and K. L. Parnas, “Simulation of Impact Induced Damage Process in a Carbon/Epoxy Composite Beam,” presented at the 7th Asian/Australian Rotorcraft Forum (30 Ekim - 01 Kasım 2018), Juji island, Güney Kore, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72734.
