An innovative micromechanics-based multiscale damage model of 3D woven composites incorporating probabilistic fiber strength distribution

Zheng, Tao; Guo, Licheng; Din, Junfeng; Li, Zhixing

doi:10.1016/j.compstruct.2022.115345

Cited by 17 publications

(4 citation statements)

References 38 publications

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“…The width of propagated crack is 1-2 finite elements, which is sufficient for accurate cracks description arising in elastic-brittle bodies during destruction. According to these findings, there is qualitative agreement of the damaging process modeling results with real experiments in terms of load-displacement diagrams [50][51][52] and macrodefect view [50,[53][54][55][56]. The α parameter value influence on the regularities of the damaging process is considered below.…”

Section: Regularities Of the Body Damaging Process Without Distributi...mentioning

confidence: 61%

“…Besides, the structural elements mechanical properties (most especially strength) statistical distribution over the body volume can also significantly affect the fracture process modeling results [23,[38][39][40][41][42][43][44][45][46][47]. This feature was widely discussed in problems of fibrous composites (consisting a large number of filaments with various strength properties [43,[46][47]) properties prediction [46,[48][49]. However, a small number of works investigate the damaging processes of elastic-brittle solids with stress concentrators taking into account the strength characteristics distribution, which may cause not only the load bearing capacity change, but the fracture mechanisms conversion.…”

Section: Introductionmentioning

confidence: 99%

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Fracture processes numerical modeling of elastic-brittle bodies with statistically distributed subregions strength values

Feklistova,

Mugatarov,

Wildemann

et al. 2024

Frattura Ed Integrità Strutturale

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This work is devoted to the fracture processes numerical modeling of elastic-brittle bodies taking into account the statistical distribution of subregions strength values and stress concentration. The novel formulation of the boundary value problem and its solution algorithm are developed. The loading diagrams obtained in computational simulations, the corresponding growth curves of the destroyed elements relative number and the damaging process kinetics are analyzed. The presence of the postcritical deformation stage at the macro-level is noted. The influence of the strength properties distribution range and the depth of the concentrator on the maximum load value and the damage evolution is determined. The significant influence of the finite elements’ properties distribution on the fracture processes modeling results is concluded.

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Section: Regularities Of the Body Damaging Process Without Distributi...mentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Fracture processes numerical modeling of elastic-brittle bodies with statistically distributed subregions strength values

Feklistova,

Mugatarov,

Wildemann

et al. 2024

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

show abstract

“…Wang et al 17 used a multiphase FE approach and introduced an asymptotic expansion homogenization framework to predict the equivalent elastic modulus and microscale stresses. Zheng et al 18 established microscale and mesoscale representative volume element (RVE) models, and defined fiber arrangement within yarns and the realistic interlocked yarn structure of composites. They conducted parametric studies to ascertain how the fiber strength distribution affects material mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Prediction and adjustment of elastic properties in three‐dimensional orthogonal woven composites through dual‐scale modeling

Jing,

Zhou,

Wang

et al. 2024

Polymer Composites

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Three‐dimensional (3D) orthogonal woven composites can overcome the drawback of weak interlaminar strengths in traditional laminated composites and exhibit excellent resistance to out‐of‐plane impact, however, the significant difference in properties in the in‐plane orthogonal direction will limit the potential range of application thereof. Predicting elastic properties and exploring methods of adjustment are therefore of paramount importance. Using computed tomography (CT) scanning to obtain detailed parameter models, a corresponding dual‐scale model of microscopic representative volume element (RVE) and mesoscopic RVE was established, and the accuracy of the model was experimentally validated, which can predict the elastic properties of materials. In addition, the influences of the yarn fiber volume fraction and weaving distance on elastic properties were evaluated using the elastic modulus visualization method, and a formula integrating these two factors is provided for adjustment of the in‐plane orthogonal Young's modulus.Highlights Experimentally validated microscale and mesoscale RVE models were established. The influences of factors on elastic properties were visualized. The relationship between Young's modulus and influencing factors was derived. A reliable strategy for adjusting the in‐plane Young's modulus was proposed.

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“…An effective FE model considering local stress smoothing was proposed by Wang et al [24] to successfully predict the damage evolution of 3D angle-interlock woven composites. Zheng et al [25] successfully predicts complex failure behavior of 3D woven composites using micromechanicsbased multiscale FE simulations. Shah et al [26][27][28] explained the properties and damage processes using digital image correlation (DIC) and FEA.…”

Section: Introductionmentioning

confidence: 99%

Bending property of novel 3D woven variable thickness composites: Experiment and finite element analysis

et al. 2023

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Variable thickness composites are essential engineering materials which have been used in various high‐performance products. However, the commonly used variable thickness composites are mainly lamination, which is prone to delamination and reduce the overall performance under load. To solve this problem, 3D woven fabrics with integrity and continuous variable thickness have been designed and weaved on ordinary looms using basalt yarns. The resin‐based variable thickness composites have been prepared by vacuum‐assisted resin transfer molding (VARTM) process, and two different laminated composites have been produced for comparison. Compared with the two kinds of laminations, the bending strength of the 3D woven variable thickness (3DWVT) composites is increased by 12.28% and 16.22% under positive load; 16.74% and 17.08% under negative load. Finally, the meso‐finite element simulation analysis of the bending performance of 3DWVT composites was carried out by using the meso‐finite element analysis (FEA), and the damage mechanism and failure mode were explored.

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An innovative micromechanics-based multiscale damage model of 3D woven composites incorporating probabilistic fiber strength distribution

Cited by 17 publications

References 38 publications

Fracture processes numerical modeling of elastic-brittle bodies with statistically distributed subregions strength values

Fracture processes numerical modeling of elastic-brittle bodies with statistically distributed subregions strength values

Prediction and adjustment of elastic properties in three‐dimensional orthogonal woven composites through dual‐scale modeling

Bending property of novel 3D woven variable thickness composites: Experiment and finite element analysis

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