Journal ArticleDOI
Influence of contact phenomena on embedded delaminations growth in composites
TLDR
In this paper, numerical geometrically nonlinear analyses have been performed to investigate the influence of contact phenomena on multiple embedded delaminations growth in composite panels under compressive load.Abstract:
In this paper, numerical geometrically non-linear analyses have been performed to investigate the influence of contact phenomena on multiple embedded delaminations growth in composite panels under compressive load. An in-house FEM code based on the Modified Virtual Crack Closure Technique to analyse delaminations growth and with the Penalty Method Approach to take into account contact phenomena has been used for computations. Compressed composite panels with two embedded delaminations has been investigated for various geometrical configurations with different delaminations’ sizes and positions. Comparisons with a single embedded delamination model adopted in previous works have been presented. Finally a comparison between contact and no-contact approaches has been shown for a significant geometrical configuration.read more
Citations
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Journal ArticleDOI
Modelling the simulation of impact induced damage onset and evolution in composites
TL;DR: In this paper, two modelling strategies for the simulation of low velocity impact induced damage onset and evolution in composite plates are presented, which use a global-local technique to refine the mesh in the impact zone in order to increase the accuracy in predicting the impact phenomena without affecting the computational cost.
Journal ArticleDOI
On the robustness of finite element procedures based on Virtual Crack Closure Technique and fail release approach for delamination growth phenomena. Definition and assessment of a novel methodology
Elisa Pietropaoli,Aniello Riccio +1 more
TL;DR: In this article, a numerical procedure based on the combined use of the Virtual Crack Closure Technique and of a fail release approach have been widely used to simulate delamination growth phenomena of composite material structures.
Journal ArticleDOI
Inter-laminar and intra-laminar damage evolution in composite panels with skin-stringer debonding under compression
A. Raimondo,Aniello Riccio +1 more
TL;DR: In this article, a numerical investigation on the interlaminar and intra-laminar damage mechanisms, characterising the skin-stringer debonding growth in stiffened composite panels subjected to compressive load, has been carried out.
Journal ArticleDOI
A robust numerical approach for the simulation of skin–stringer debonding growth in stiffened composite panels under compression
TL;DR: In this paper, a numerical study on skin-stringer debonding growth in stiffened composite panels has been carried out to investigate the compressive behavior of a stiffening composite panel in the presence of skin−stringer partial separation.
Journal ArticleDOI
Modeling Damage Propagation in Composite Plates with Embedded Delamination under Compressive Load
Aniello Riccio,Elisa Pietropaoli +1 more
TL;DR: In this paper, a numerical procedure aimed at simulating the structural behavior of delaminated composite plates under compressive load is developed and presented, where a geometrically non linear finite element (FE) approach is adopted for elastic instability simulation, the modified virtual crack closure technique (MVCCT) is used for the energy release rate (ERR) evaluation at the delamination front and fracture mechanics based progressive damage approach is introduced for the simulation of fiber-matrix damage onset and evolution.
References
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Book
The stress analysis of cracks handbook
TL;DR: The Stress Analysis of Cracks Handbook as mentioned in this paper provides a comprehensive, easy-to-access collection of elastic stress solutions for crack configurations, along with other relevant information, such as displacements, crack opening areas, basic stress functions source references, accuracy of solutions, and more.
Book ChapterDOI
Stress Analysis of Cracks
Paul C. Paris,G.C. Sih +1 more
TL;DR: Elastic stress analyses of cracked bodies represented by stress intensity factor method - fracture mechanics as discussed by the authors, and fracture mechanics are used for fracture mechanics. But they are not suitable for fracture analysis.
Journal ArticleDOI
The Application of Newton's Method to the Problem of Elastic Stability
TL;DR: The numerical solution of problems of elastic stability through the use of the iteration method of Newton is examined in this paper, where it is found that if the equations of equilibrium are completed by a simple auxiliary equation, problems governed by a snapping condition can, in principle, always be calculated as long as the problem at hand is properly formulated.
Journal ArticleDOI
One dimensional modelling of failure in laminated plates by delamination buckling
TL;DR: In this paper, a first attempt by a delaminating beam-column was modeled by a fracture mechanics-based energy release rate criterion, where the local delamination growth, stability, and arrest were governed by the fracture mechanics.
Journal ArticleDOI
Buckling of a sublaminate in a quasi-isotropic composite laminate
TL;DR: In this paper, the buckling of an elliptic delamination embedded near the surface of a thick quasi-isotropic laminate was predicted using finite element and Rayleigh-Ritz methods.
Related Papers (5)
On the robustness of finite element procedures based on Virtual Crack Closure Technique and fail release approach for delamination growth phenomena. Definition and assessment of a novel methodology
Elisa Pietropaoli,Aniello Riccio +1 more