Trans-scale modeling framework for failure analysis of cryogenic composite tanks

Huang, Cheng; Ren, Mingfa; Li, Tong; Chang, Xin; Cong, Jie; Lei, Yiyan

doi:10.1016/j.compositesb.2015.09.023

Cited by 30 publications

(9 citation statements)

References 29 publications

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“…The microstructure of the unidirectional fibre-reinforced composites is usually completely random. 26 However, the average density of fibres in any direction in the plane keeps the same, which leads to the macroscopic homogeneous performance. Two of the most common strategies to model the fibre distribution are a square layout 39 and a hexagonal layout 26 which assume the fibres are evenly distributed.…”

Section: Fibre Distributionmentioning

confidence: 99%

“…26 However, the average density of fibres in any direction in the plane keeps the same, which leads to the macroscopic homogeneous performance. Two of the most common strategies to model the fibre distribution are a square layout 39 and a hexagonal layout 26 which assume the fibres are evenly distributed. It has been proved that the hexagonal layout is in an improved position than compared to the square layout for the representation of real materials of statistical transverse isotropic.…”

Section: Microstructure Characteristicsmentioning

confidence: 99%

“…This effect should be considered to ensure the reliability of the structure design. [26][27][28][29] However, only limited studies were conducted on the elasticity properties of composite materials containing voids under different temperatures. 24 The cost of testing and the limit of experiment techniques make it difficult to carry out experimental characterization with respect to all the possible working conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Once the micromorphology of the voids is given, the properties of the composite materials can be obtained by the analysis of a representative volume element or a unit cell. Finite element method (FEM) has been extensively used in the literature 26,27,[34][35][36] to analyse an RVC or a unit cell based on the development of high performance computers nowadays. Compared to analytical method, FEM is easier to carry out to discuss the properties of a variety of different morphologies of the voids.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of mechanical behaviour of unidirectional fibre-reinforced composites considering the void morphology

Chang

Ren

et al. 2017

Journal of Reinforced Plastics and Composites

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Voids are one of the most common defects in fibre-reinforced composite materials. Insightful understandings of the correlation between void morphology and material properties can benefit the desired performance of industrial products. A two-level analysis method for unidirectional fibre-reinforced composites containing voids is developed based on micromechanical modelling. Representative volume cells at different levels are developed based on the description of fibre distribution and void geometry. Finite element analysis was performed on the representative volume cell to determine the effective elastic moduli. Good agreements are found among the finite element analysis results, theoretical results of Halpin-Tsai equation and experimental characterization from literature. Results show that the mechanical properties of composites are significantly affected by void morphology. Larger width-height aspect ratio leads to a less modulus reduction of in-plane modulus, but it produces larger reduction of out-of-plane modulus. Moreover, the finite element analysis results can give good explanation to the discreteness of the experimental characterization. It indicates that typical voids that are formed in the autoclave process have significant impact on the out-of-plane modulus. The study considered the temperature effect on the composite containing voids. Results show that there is no coupling effect between porosity and temperature.

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Section: Fibre Distributionmentioning

confidence: 99%

Section: Microstructure Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of mechanical behaviour of unidirectional fibre-reinforced composites considering the void morphology

Chang

Ren

et al. 2017

Journal of Reinforced Plastics and Composites

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“…Yang et al (2015) investigated the low-velocity impact responses and damage morphology on hybrid composite laminates through both experimental data and simulation results. Huang et al (2016) considered a trans-scale progressive damage analysis strategy to simulate the thermo-mechanical coupling properties of composite structures. Zhou et al (2019) designed a sandwich structure with kirigami cruciform core and researched the influence of geometric parameters on the energy absorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Experimental and simulation investigation on BVID and CAI behaviors of CFRP laminates manufactured by RTM technology

Chen

Yao

Jiang

2020

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Purpose The purpose of this paper is to synthetically investigate the impact damage responses of carbon fiber reinforced polymer (CFRP) and its influence on the compression mechanical responses of CFRP laminates, including damage distribution, residual compressive strength and fracture morphology. Design/methodology/approach A progressive damage simulation model is developed to analyze the complicated damage responses of CFRP laminates that are manufactured by resin transfer method (RTM) technology. Based on the ABAQUS/explicit finite element analysis solver, a VUMAT code is proposed to descript the composite materials’ damage behaviors under both impact and compression load. Adopting this proposed model, the primary mechanical indicators of four groups’ 5284RTM/U3160 CFRP laminates with different stacking sequences are predicted. Moreover, impact and compression after impact tests are conducted to verify the accuracy of simulation results. Findings Both simulation and experimental results show that the impact damage with low visible detectability can significantly reduce composites’ compressive strength. For all four groups’ composite laminates, the residual strength ratio is around 35% or even lower. The kernel impact damage near the plates’ geometric center promotes the degradation process of local materials and finally leads to the early occurrence of mechanical fracture. In addition, the impact damage projection area is not sensitive to the parameters of stacking sequences, while the residual compression strength is proportional to the number of 0-degree layers within whole laminates. Originality/value This study helps to understand the effect of an impact event on CFRP laminates’ compressive bearing capacity and provides a numerical method in simulating the damage responses under both impact and compression load.

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An efficient viscoelastic multiscale model for investigation on the cure‐induced microscopic residual stresses of composite laminates

Liu,

Cao

et al. 2024

Polymer Composites

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The cure‐induced residual stresses have a significant influence on the deformation and mechanical properties of composites. Moreover, the cure‐induced residual stresses exhibit multi‐level and multiscale distributions due to the complexity of micro‐structure of composites and anisotropic characteristics. In this paper, a computationally efficient multiscale procedure is proposed to predict the microscopic residual stresses induced by cure temperature, cure shrinkage and macroscopic residual stresses, which is based to the linear viscoelastic theory combined with the micro‐mechanics method. The instantaneous microscopic residual stresses are expressed as a linear combination of the instantaneous temperature increment, degree of cure increment and macroscopic strain increment at all times of the cure process until to the current time. The proposed method is verified in comparison with the published results in literature and the microscale FEA at different length scales, respectively. The results show that the proposed method is about a thousand times faster than directly using FEA in the microscale RVE model once the influence coefficient matrices are determined. At length, the microscale stresses of all nodes of the entire macroscale model are examined by using the proposed method. It is found that the thermal‐chemical‐mechanical loads lead to serious microscopic stresses for the matrix and interphase constituents, especially for those due to the macroscopic residual stresses.Highlights Microscale residual stress is written as a linear combination of macroscale loads. Applying macroscale loads on microscale FEA model to obtain influence matrices. The presented model avoids repeatedly FEA microscopic to improve the efficiency. The online time required for the proposed model is much less than microscale FEA. The microscale stress increases the risk of matrix cracking and interface bonding.

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Trans-scale modeling framework for failure analysis of cryogenic composite tanks

Cited by 30 publications

References 29 publications

Evaluation of mechanical behaviour of unidirectional fibre-reinforced composites considering the void morphology

Evaluation of mechanical behaviour of unidirectional fibre-reinforced composites considering the void morphology

Experimental and simulation investigation on BVID and CAI behaviors of CFRP laminates manufactured by RTM technology

An efficient viscoelastic multiscale model for investigation on the cure‐induced microscopic residual stresses of composite laminates

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