A Structured Methodology to Simulate Composite Advanced Joint Behavior for Ultra-Light Platforms Applications

Numerical simulations have the potential to be used for designing damage-tolerance composite structures. However, numerical models are currently computationally intensive, and their post-failure evolution and fracture morphology predictions are still limited. In the present work, a numerical methodo...

Full description

Saved in:
Bibliographic Details
Published in:Applied sciences 2023-01, Vol.13 (2), p.1004
Main Authors: Polla, Alessandro, Frulla, Giacomo, Cestino, Enrico, Das, Raj, Marzocca, Pier
Format: Article
Language:English
Subjects:
advanced joint
cohesive elements
Composite materials
Composite structures
Crack initiation
Crack propagation
Damage tolerance
delamination
Design
Failure analysis
Fracture mechanics
Load
LS-DYNA
Mathematical models
Methodology
Numerical analysis
Numerical models
Numerical prediction
Shear tests
Simulation
Ultimate loads
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Numerical simulations have the potential to be used for designing damage-tolerance composite structures. However, numerical models are currently computationally intensive, and their post-failure evolution and fracture morphology predictions are still limited. In the present work, a numerical methodology to simulate advanced composite joints is presented. The results of a numerical campaign aimed to evaluate the progressive damage and failure analysis (PDFA) of an advanced pin-hole connection under tensile and compressive load are evaluated. A high-fidelity stacked shell-cohesive methodology is employed to simulate the ultimate load, fracture initiation, and propagation of the proposed composite joint. Post-failure erosion methodology is proposed to control the initiation and evolution of composite fractures. The location and extension of the numerically predicted damages are compared with experimental observations. The proposed methodology demonstrates its preliminary ability to be used for designing composite joints up to failure. Specific outcomes are also pointed out.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13021004