PMC-28: Numerical Simulation for Interlaminar Damage Growth of Composite Laminate under Transverse Loading with Cohesive Zone Model(PMC-IV: POLYMERS AND POLYMER MATRIX COMPOSITES)

2005 ◽  
Vol 2005 (0) ◽  
pp. 42-43
Author(s):  
M. NISHIKAWA ◽  
N. TAKEDA ◽  
T. OKABE
Keyword(s):  
Numerical Simulation ◽  
Cohesive Zone ◽  
Composite Laminate ◽  
Cohesive Zone Model ◽  
Polymer Matrix Composites ◽  
Zone Model ◽  
Matrix Composites ◽  
Damage Growth ◽  
Transverse Loading ◽  
Interlaminar Damage

Finite Element Simulation of Delamination in Carbon Fiber/Epoxy Laminate Using Cohesive Zone Model: Effect of Meshing Variation

2019 ◽  
Vol 964 ◽  
pp. 257-262
Author(s):  
Victor D. Waas ◽  
Mas Irfan P. Hidayat ◽  
Lukman Noerochim
Keyword(s):  
Finite Element ◽  
Carbon Fiber ◽  
Cohesive Zone ◽  
Composite Laminate ◽  
Cohesive Zone Model ◽  
Critical Force ◽  
Zone Model ◽  
Interface Elements ◽  
Dcb Specimen ◽  
Carbon Fiber Epoxy

Delamination or interlaminar fracture often occurs in composite laminate due to several factors such as high interlaminar stress, stress concentration, impact stress as well as imperfections in manufacturing processes. In this study, finite element (FE) simulation of mode I delamination in double cantilever beam (DCB) specimen of carbon fiber/epoxy laminate HTA/6376C is investigated using cohesive zone model (CZM). 3D geometry of DCB specimen is developed in ANSYS Mechanical software and 8-node interface elements with bi-linear formulation are employed to connect the upper and lower parts of DCB. Effect of variation of number of elements on the laminate critical force is particularly examined. The mesh variation includes coarse, fine, and finest mesh. Simulation results show that the finest mesh needs to be employed to produce an accurate assessment of laminate critical force, which is compared with the one obtained from exact solution. This study hence addresses suitable number of elements as a reference to be used for 3D simulation of delamination progress in the composite laminate, which is less explored in existing studies of delamination of composites so far.

Numerical Simulation of Crack Growth in Polyethylene Composites by Means of the Cohesive Zone Model

2012 ◽  
Vol 311 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Marian Janko ◽  
Werner Ecker ◽  
Gerald Pinter ◽  
Otmar Kolednik
Keyword(s):  
Numerical Simulation ◽  
Crack Growth ◽  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Zone Model ◽  
Polyethylene Composites

scholarly journals Numerical-Experimental Correlation of Interlaminar Damage Growth in Composite Structures: Setting Cohesive Zone Model Parameters

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
F. Di Caprio ◽  
S. Saputo ◽  
A. Sellitto
Keyword(s):  
Cohesive Zone ◽  
Composite Laminates ◽  
Composite Structures ◽  
Cohesive Zone Model ◽  
Numerical Models ◽  
Experimental Tests ◽  
Model Parameters ◽  
Zone Model ◽  
Growth Phenomenon ◽  
Interlaminar Damage

Composite laminates are characterized by high mechanical in-plane properties while experiencing, on the contrary, a poor out-of-plane response. The composite laminates, indeed, are often highly vulnerable to interlaminar damages, also called “delaminations.” One of the main techniques used for the numerical prediction of interlaminar damage onset and growth is the cohesive zone model (CZM). However, this approach is characterised by uncertainties in the definition of the parameters needed for the implementation of the cohesive behaviour in the numerical software. To overcome this issue, in the present paper, a numerical-experimental procedure for the calibration of material parameters governing the mechanical behaviour of CZM based on cohesive surface and cohesive element approaches is presented. Indeed, by comparing the results obtained from the double cantilever beam (DCB) and end-notched flexure (ENF) experimental tests with the corresponding numerical results, it has been possible to accurately calibrate the parameters of the numerical models needed to simulate the delamination growth phenomenon at coupon level.

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