GLOBAL-LOCAL PROGRESSIVE DAMAGE ANALYSIS OF COMPOSITE LAMINATES USING LAYER-WISE HIGHER-ORDER STRUCTURAL MODELSv

2021 ◽  
Author(s):  
MANISH H. NAGARAJ ◽  
ERASMO CARRERA ◽  
MARCO PETROLO
Keyword(s):  
Composite Laminates ◽  
Damage Mechanics ◽  
Numerical Models ◽  
Higher Order ◽  
Computational Time ◽  
Progressive Damage ◽  
Damage Analysis ◽  
Isotropic Composite ◽  
Integration Schemes ◽  
Laminated Structures

The objective of the current work is to develop a global-local framework for the progressive damage analysis of composite laminated structures. The technique involves two sequential analyses—an initial low-fidelity 3D-FE based linear analysis of the global structure, followed by the local nonlinear analysis of critical regions where damage is likely to occur. The numerical models used for the local analysis are developed using higher-order layer-wise structural theories obtained via the Carrera Unified Formulation. Composite damage is modelled using the CODAM2 model based on continuum damage mechanics, and the nonlinear problem is solved using explicit time integration schemes. Preliminary assessments are carried out to validate the proposed global-local framework by considering open-hole tensile specimens of quasi-isotropic composite laminates. Both full-scale CUF models and the proposed global-local approach are used to predict the tensile strength of the specimen. It is shown that the obtained results are in good agreement with experiment data, thus validating the framework, and a multi-fold improvement in computational time is demonstrated.

Progressive damage analysis of composite structures using higher-order layer-wise elements

2020 ◽  
Vol 190 ◽  
pp. 107921 ◽  
Author(s):  
M.H. Nagaraj ◽  
J. Reiner ◽  
R. Vaziri ◽  
E. Carrera ◽  
M. Petrolo
Keyword(s):  
Composite Structures ◽  
Higher Order ◽  
Progressive Damage ◽  
Damage Analysis

Prediction of Inelastic Behavior of Composite Laminates Using Multi-Surface Continuum Damage-Plasticity

2008 ◽  
Vol 47-50 ◽  
pp. 773-776 ◽  
Author(s):  
Bijan Mohammadi ◽  
Hossein Hosseini-Toudeshky ◽  
Mohammad Homayoun Sadr-Lahidjani ◽  
Shahram Aivazzadeh
Keyword(s):  
Composite Laminates ◽  
Damage Mechanics ◽  
Failure Load ◽  
Internal Variable ◽  
Damage Analysis ◽  
Continuum Damage ◽  
Inelastic Behavior ◽  
Surface Plasticity ◽  
Plastic Damage ◽  
Failure Loads

The recently performed investigations in continuum plastic-damage analysis of composite laminates by the authors showed that using a single hardening internal variable for damage and plasticity surfaces may prone to significant errors in response and failure load for some lay-ups. In this paper, the new technique of coupled continuum plastic-damage mechanics including multisurface dissipation potentials are employed to improve the results. The response and failure loads of the laminated composites with different lay-ups are predicted using elastic, damage, and damageplasticity conditions with single and multi surface plasticity and compared with the available experimental results.

Comparison of composite damage growth tools for static behavior of notched composite laminates

2016 ◽  
Vol 51 (10) ◽  
pp. 1493-1524 ◽  
Author(s):  
Stephen P Engelstad ◽  
Stephen B Clay
Keyword(s):  
Air Force ◽  
Composite Laminates ◽  
Fatigue Loading ◽  
Lessons Learned ◽  
Progressive Damage ◽  
Damage Analysis ◽  
Damage Growth ◽  
Composite Damage ◽  
Open Hole ◽  
Air Force Research Laboratory

This paper provides overall comparisons of the static results of an Air Force Research Laboratory exploration into the state of the art of existing technology in composite progressive damage analysis. In this study, blind and re-calibration bench-marking exercises were performed using nine different composite progressive damage analysis codes on unnotched and notched (open-hole) composite coupons under both static and fatigue loading. This paper summarizes the results of the static portion of this program. Comparisons are made herein of specimen stiffness and strength predictions against each other and the test data. Overall percent error data is presented, as well as a list of observations and lessons learned during this year-long effort.

Fatigue Life Prediction of Composite Laminates Based on Progressive Damage Analysis

2014 ◽  
Vol 1064 ◽  
pp. 108-114 ◽  
Author(s):  
Jun Kang ◽  
Zhi Dong Guan ◽  
Zeng Shan Li ◽  
Zhun Liu
Keyword(s):  
Fatigue Life ◽  
Fatigue Damage ◽  
Material Property ◽  
Composite Laminates ◽  
Life Prediction ◽  
Shear Failure ◽  
Fatigue Life Prediction ◽  
Progressive Damage ◽  
Damage Analysis ◽  
Fatigue Damage Analysis

A three dimensional analysis model is developed on the fatigue life prediction of composite laminates based on a progressive damage analysis. This model consists of stress analysis, fatigue failure analysis and material property degradation. Teserpe’s failure criteria is used to fatigue damage analysis. Fiber tensile/compressive breakage, matrix tensile/compressive cracking, matrix/fiber shear failure and tension/compression delamination are considered in fatigue damage analysis. The methodologies of sudden degradation and gradual degradation are both applied in the material property degradation. The stiffness and strength gradual degradation is based on the Shokrieh fatigue model, which is based on fatigue test for unidirectional laminates. In order to consider the scatter of the material in the practical structures, the stiffness and strength of the material are randomly distributed using normal distribution in the numerical model. The progressive fatigue damage model is developed in finite element code ABAQUS through user subroutine UMAT, which can simulate the fatigue damage process. Fatigue life of different ply stacking sequences and geometries composite laminates under different cycle loading are predicted. The predicted fatigue life is in good agreement with the experimental results.

Progressive Damage Analysis of Laminated Composites Using Element Free Galerkin Method

2010 ◽  
Vol 123-125 ◽  
pp. 579-582
Author(s):  
Hossein Hosseini-Toudeshky ◽  
F. Mazaheri Torei ◽  
Bijan Mohammadi
Keyword(s):  
Galerkin Method ◽  
Composite Laminates ◽  
Shear Deformation Theory ◽  
Failure Criteria ◽  
Progressive Damage ◽  
Damage Analysis ◽  
Element Free Galerkin Method ◽  
First Order ◽  
Element Free Galerkin ◽  
Element Free

The aim of the present study is evaluation of the element-free Galerkin method (EFGM) in progressive damage analyses of composite laminates. For this purpose, an orthotropic EFGM formulation is employed which is based on the first-order shear deformation theory (FSDT). In progressive damage analysis, the Hashin’s type failure criteria and their degradation rules are used. The obtained damage results from EFGM are compared with the experimental and FEM results.

scholarly journals Progressive multi-damage analysis of composite laminate using higher order zig-zag plate theory

2020 ◽  
Vol 12 (4) ◽  
pp. 168781402091536
Author(s):  
Zhaotian Wu ◽  
Chuwei Zhou
Keyword(s):  
Composite Laminates ◽  
Degrees Of Freedom ◽  
Present Model ◽  
Plate Theory ◽  
Element Model ◽  
Higher Order ◽  
Damage Analysis ◽  
Surface Conditions ◽  
Layer Composite ◽  
Delamination Resistance

In this article, a finite element model of multi-layer composite laminates with delamination based on higher order zig-zag theory is studied for the progressive delamination analysis. The degrees of freedom are simplified by the continuity conditions of shear stress between layers and the free-surface conditions at the bottom and top of laminates. The numbers of degrees of freedom are not reduced with this method while the model can take the initiation of delamination into consideration in return. Static loading analysis is implemented to simulate the performance in delamination resistance with two different plies and under two different boundary conditions. The present model can present good performance in the prediction of delamination phenomenon.

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