Progressive damage analysis and experiments of open-hole composite laminates subjected to compression loads

Liu, Zhengliang; Yan, Leilei; Wu, Zhen; Zhou, Jie; Wei, Haolin; Zhang, Senlin; Ren, Xiaohui

doi:10.1016/j.engfailanal.2023.107379

Cited by 10 publications

(1 citation statement)

References 42 publications

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“…This perspective envisages that the structure's load is conveyed solely through its intact cross-sectional area. The prevalent discourse in the literature focuses on Progressive Damage Analysis (PDA) [40][41][42], with the onset of damage being identified based on Hashin's criterion discussed earlier. PDA necessitates the specification of a suitable material model incorporating parameters for the initiation and progression of damage.…”

Section: Introductionmentioning

confidence: 99%

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Falkowicz

2024

Materials

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In the present study, the stability and failure phenomena of thin-walled constructions subjected to axial compression, featuring a central cut-out, and constructed from composite materials were explored. These constructions were fabricated from a carbon–epoxy composite using the autoclave method. The research encompassed experimental assessments on actual specimens alongside numerical analyses employing the finite element approach within the ABAQUS® software. The investigation spanned the entire load spectrum up to the point of structural failure, incorporating both practical trials and simulation analysis. During the practical assessments, the study monitored the post-buckling response and captured acoustic emissions to thoroughly evaluate the composite’s failure mechanisms. Additionally, the ARAMIS system’s non-invasive three-dimensional scanning was employed to assess deformations. Theoretical simulations utilized a step-by-step failure analysis, initiating with failure onset as per Hashin’s theory and proceeding to failure progression based on an energy criterion. The simulation outcomes, particularly concerning the critical and post-critical phases, were juxtaposed with empirical data to identify the composite’s vulnerability zones. The comparison underscored a significant concordance between the simulation predictions and the empirical findings.

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Section: Introductionmentioning

confidence: 99%

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Falkowicz

2024

Materials

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Implementation of a new approach based on the functionally graded materials concept to improve the strength of laminated composites containing open‐hole

Mobtasem,

Abd‐Elhady,

Sallam

2024

Polymer Composites

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The main objective of the present study is to implement a functionally graded materials (FGM) technique to reduce the hole effect in fiber reinforcement polymers. The tensile and fracture behaviors of conventional and FGM composites containing open holes have been investigated. Open‐hole specimens having different hole sizes have been fabricated using a hand lay‐up technique with different cross‐ply stacking sequences and various numbers of layers to study the open‐hole effect on their tensile strength. On the other hand, a three‐dimensional finite element analysis with the Hashin model was implemented to observe the failure modes along each layer. Experimental and numerical data revealed that the FGM technique enhanced the performance of specimens in the presence of a hole by increasing the fibers around the hole area. Furthermore, the [0/90/0°] sequence has more tensile strength than [0/90]s and [0°/90°/0°/90°/0°] sequences. It can be concluded that the bearing capacity of cross‐ply laminates is proportionally dependent on the ratio of the number of 0° layers to the number of 90° layers and inversely dependent on the specimen thickness.Highlights Dense fibers around the open hole improve its strength in laminated composite. The FGM concept has been successfully employed to improve open‐hole strength. The stacking sequence [0°/90°/0°] has better tensile strength than [0°/90°]s. FEA has successfully simulated the FGM concept around the open hole. The open‐hole failure occurred in the same direction as fiber orientation.

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Experimental and multi-scale modeling research on the dynamic tensile properties of open-hole CFRP laminates subjected to strain rates of low to medium

Feng,

Zhang,

Liu

2024

Iran Polym J

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Progressive damage analysis and experiments of open-hole composite laminates subjected to compression loads

Cited by 10 publications

References 42 publications

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Implementation of a new approach based on the functionally graded materials concept to improve the strength of laminated composites containing open‐hole

Experimental and multi-scale modeling research on the dynamic tensile properties of open-hole CFRP laminates subjected to strain rates of low to medium

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