Numerical study on failure behavior of open-hole composite laminates based on LaRC criterion and extended finite element method

Liu, Decheng; Cao, Dongfeng; Hu, Haixiao; Zhong, Yucheng; Li, Shuxin

doi:10.1007/s12206-021-0217-9

Cited by 6 publications

(1 citation statement)

References 37 publications

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“…The LaRC criterion [19,20] as an advanced failure criterion was developed based on the Puck failure criterion [21,22], with the in situ effect, nonlinear shear, and fiber kinking effect of laminates considered, covering all the essential properties of thin-ply composites when connected by bolts. Liu et al [23] first constructed a numerical model based on the LaRC criterion to analyze and discuss the initial failure and stiffness degradation process of the composites under the complex stress state of laminates with holes. Zhang et al [24] proposed that fiber kinking, matrix failure, and interlayer delamination could all be accurately predicted by a numerical model in an open-cell structure.…”

Section: Introductionmentioning

confidence: 99%

Modeling Progressive Damage and Failure of Single-Lap Thin-Ply-Laminated Composite-Bolted Joint Using LaRC Failure Criterion

Wang

et al. 2022

Materials

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Thin-ply composite failure modes also significantly differ from conventional ply composite failure modes, with the final failure mechanism switching from irregular progressive failure to direct fracture characterized by a uniform fracture with the reduction of the ply thickness. When open holes and bolt joints are involved, thin-ply-laminated composites exhibit more complex stress states, damage evolution, and failure modes. Compared to the experimental study of thin-ply-laminated composite-bolted joints, there are few reports about numerical analysis. In order to understand the damage evolution and failure mechanism of thin-ply-laminated composites jointed by single-lap bolt, a progressive damage model based on three-dimensional (3D) LaRC failure criterion combined with cohesive element is constructed. Through an energy-based damage evolution method, this model can capture some significant mechanical characteristics in thin-ply-laminated structures, such as the in situ effect, delamination inhibition, and fiber compressive kinking failure. The comparisons between the numerical predictions and experimental observations are made to verify the accuracy of the proposed model. It is found that the predicted stress-displacement curves, failure modes, damage morphologies, etc., are consistent with the experimental results, indicating that the presented progressive damage analysis method displays excellent accuracy. The predicted stress at the onset of delamination is 50% higher than that of the conventional thick materials, which is also consistent with experimental results. Moreover, the numerical model provides evidence that the microstructure of thin-ply-laminated composite performs better in uniformity, which is more conducive to inhibiting the intra-layer damage and the expansion of delamination damage between layers. This study on the damage inhibition mechanism of thin-ply provides a potential analytical tool for evaluating damage tolerance and bearing capabilities in thin-ply-laminated composite-bolted joints.

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Section: Introductionmentioning

confidence: 99%

Modeling Progressive Damage and Failure of Single-Lap Thin-Ply-Laminated Composite-Bolted Joint Using LaRC Failure Criterion

Wang

et al. 2022

Materials

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Mechanical properties of open‐hole unidirectional laminates: Hybridization of jute unidirectional fabrics with glass fabrics

Flores,

da Silveira,

Agne

et al. 2024

Polymer Composites

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This study examines the mechanical properties of open‐hole unidirectional laminates by hybridizing jute and glass fabrics. Characterization involved microscopy, thickness variation, density measurements, tensile, and flexural tests. Numerical models were developed for each configuration, validated by experimental data, with a VUMAT subroutine implemented in ABAQUS/Explicit™ to simulate progressive damage using the 3D Hashin criteria. Results showed voids in the interphase regions of both jute‐based and hybrid laminates, indicating that jute fibers contribute to void formation. Thickness varied with the number of hybrid interfaces, with the glass laminate (G5) being thinnest, while jute and hybrid laminates (JGJGJ, JGGGJ and J5) were thicker. Density variation was influenced by the fiber types and their respective densities. Tensile tests revealed lower strength and modulus in jute laminates compared to glass. Open holes reduced tensile properties across laminates, except for G5. Numerical‐experimental tensile strength differences ranged from 0.5% to 6.1% (without hole) and 3.7% to 64.0% (with hole). Open‐hole laminates also showed reduced flexural strength but maintained a consistent flexural modulus. Numerical and experimental results for jute and hybrid laminates matched closely, with differences from 0.02% to 19.5%. Failure modes during tensile and flexural tests provided important insights into laminate behavior.Highlights Hybridization of jute and glass fibers led to void formation in interphase regions. Thickness variation in laminates influenced by the number of hybrid interfaces. Density variation primarily influenced by fiber types and their densities. Bi‐component jute laminates showed lower tensile properties compared to glass laminates. Open holes resulted in decreased tensile properties, except for G5‐H laminate. Failure modes during tensile testing provided valuable insights into laminate behavior. Open‐hole laminates exhibited reduced flexural strength with similar flexural modulus.

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XFEM Composite Failure Criterion and Slope Failure Simulation Based on ABAQUS

Li,

Cheng,

2024

Lecture Notes in Civil Engineering

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Conventional numerical methods face major challenges in simulating the complex failure process of soil slopes effectively and accurately. This paper introduces a tension-shear composite failure criterion that elucidates the compound failure mechanisms of soil slopes, realized in the ABAQUS software through the secondary development of a user subroutine and simulated via the extended finite element method (XFEM) module. This method is utilized to simulate the process of soil slope failure under conditions that include heaping load at the crest and excavation at the toe, accompanied by analyses of the failure patterns. The methodology's validity and accuracy are substantiated through comparison with experimental data. The proposed approach adeptly captures the initiation, propagation, and ultimate penetration of cracks during the slope failure process, offering an effective method for simulating the entire slope failure.

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Numerical study on failure behavior of open-hole composite laminates based on LaRC criterion and extended finite element method

Cited by 6 publications

References 37 publications

Modeling Progressive Damage and Failure of Single-Lap Thin-Ply-Laminated Composite-Bolted Joint Using LaRC Failure Criterion

Modeling Progressive Damage and Failure of Single-Lap Thin-Ply-Laminated Composite-Bolted Joint Using LaRC Failure Criterion

Mechanical properties of open‐hole unidirectional laminates: Hybridization of jute unidirectional fabrics with glass fabrics

XFEM Composite Failure Criterion and Slope Failure Simulation Based on ABAQUS

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