A novel trans-scale method for predicting mode I matrix crack density of composite laminates

Yuan, Mingqing; Yang, Yanzhi; Zhao, Haitao; Wang, Yong; Li, Ruowei; Zhang, Boming; Chen, Jian

doi:10.1016/j.compstruct.2019.111726

Cited by 14 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the fracture energy analysis in our previous work, 32 the micro-mechanical critical stresses are defined as σ 2 c and τ 12 c . Micro-mechanical critical stresses are calculated by considering that the difference in the strain energy between an undamaged RVE and the cracked RVE with an arbitrary crack density ρ is equal to the surface energy increment, which is shown in equation (1).…”

Section: Methodsmentioning

confidence: 99%

“…E 1 and v 12 hardly ever vary with crack density in Table 2 as well as the previous work. 32 Therefore the analytical E 2 ( ρ ) and G 12 ( ρ ) are sufficient for the crack density estimation of the laminated composites. The equivalent properties with other crack densities are calculated using FEA, and compared with the analytical results in Appendix 1.…”

Section: Validation Of the Methodsmentioning

confidence: 99%

“…According to the fracture energy analysis in our previous work, 32 the micro-mechanical critical stresses are defined as r 2 c and s 12 c…”

Section: Semi-analytical Damaged Constitutive Modelmentioning

confidence: 99%

“…The derivation process of equations ( 2) and (3) was published in the previous work 32 ; therefore the details are omitted in this paper. Micro-mechanical critical stresses are found to be independent of the crack density, when the material properties and thickness of the cracked ply are constant.…”

Section: Semi-analytical Damaged Constitutive Modelmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of mixed mode fracture criteria in finite element analysis for matrix crack density estimation of laminated composites

Yuan

Zhao

et al. 2020

Journal of Composite Materials

Self Cite

View full text Add to dashboard Cite

A mixed mode crack density estimation method based on the finite element analysis (FEA) for laminated composites is proposed and verified in this paper. The damaged properties of cracked ply are obtained using semi-analytical micro-mechanical method for the first time. The piecewise functions of the mode I and mode II energy release rates involving crack density are given based on Griffith’s energy principle and discrete damage mechanics (DDM). Any mixed mode fracture criteria could be simply applied to the FEA of the structure to calculate the initiation and evolution of the micro-cracks in the laminate. Mode I criterion, power law and B-K criterion are applied in the numerical examples to compare their performances in the crack density estimation. It has been concluded that the accuracy of the fracture toughness is more important than the choice of fracture criterion in crack density estimation.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Validation Of the Methodsmentioning

confidence: 99%

“…According to the fracture energy analysis in our previous work, 32 the micro-mechanical critical stresses are defined as r 2 c and s 12 c…”

Section: Semi-analytical Damaged Constitutive Modelmentioning

confidence: 99%

Section: Semi-analytical Damaged Constitutive Modelmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of mixed mode fracture criteria in finite element analysis for matrix crack density estimation of laminated composites

Yuan

Zhao

et al. 2020

Journal of Composite Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…For the macroscale analysis (e.g., laminate with different angle-ply layers composite), the averaged stress–strain responses obtained at the micro-level are incorporated to reveal the macroscale constitutive behavior and the damage mechanism [ 5 , 20 , 21 ]. From the constituent properties measured from lamina-level coupon tests, A two-scale, micromechanics-based model was utilized to predict the progressive damage and failure responses of composite laminate [ 22 , 23 , 24 , 25 ] and the initial transverse micro-cracks [ 26 ]. The outstanding advantage of multi-scale models is their ability to capture the damage initiation and evolution at multiple length scales revealing their damage physics, obviously.…”

Section: Introductionmentioning

confidence: 99%

Numerical Tensile Damage Procedure Analysis of Angle-Ply Laminate Using Multi-Scale RVEs with Smear Crack Models

Wang

Zhang

et al. 2022

Materials

View full text Add to dashboard Cite

This paper reported the tensile failure strengths and damage procedure of composite laminate manufactured from the toughened-epoxy T800 prepreg at multi-scale levels. According to the exterior and interior distinction of each layer in laminate, the macro/mesoscale representative volume element (macro-RVE, meso-RVE) was first constructed, respectively. Then the micro-scale representative volume element (micro-RVE) with a hexagonal fiber-packed pattern in the interior zone of each layer in the laminate was finally determined on the principle of the same fiber volume fraction between the composite laminate and multi-scale RVEs. In the multi-RVEs analysis, the mechanical failure strengths of each scale model were transmitted from the last-scale model’s homogenization, such as the meso-RVE from micro-RVE and the macro-RVE from meso-RVE. Based on our previous report, the innovative multi-scale damage and post-damage models on the concept of the smear crack were improved fully and incorporated by user-defined material subroutines (UMATs), such as in the addition of multiple cracks co-coupled, which makes it predict the element damage procedure. The averaged mechanical responses with damage mechanism of multi-scale RVEs under tensile, compressive, or shear loadings were obtained wholly by the homogenization method. The macroscale tensile damage initiation and propagation procedure were analyzed in detail including their global/local responses, being extended to comparison with experimental results.

show abstract

A Novel Algorithm in Stochastic Chopped Carbon Fiber Composite Structure-A Study of RVE Size Effect and Homogenization Response of Directional Modulus

Liu

Chen

et al. 2021

Appl Compos Mater

View full text Add to dashboard Cite

A novel trans-scale method for predicting mode I matrix crack density of composite laminates

Cited by 14 publications

References 22 publications

Comparison of mixed mode fracture criteria in finite element analysis for matrix crack density estimation of laminated composites

Comparison of mixed mode fracture criteria in finite element analysis for matrix crack density estimation of laminated composites

Numerical Tensile Damage Procedure Analysis of Angle-Ply Laminate Using Multi-Scale RVEs with Smear Crack Models

A Novel Algorithm in Stochastic Chopped Carbon Fiber Composite Structure-A Study of RVE Size Effect and Homogenization Response of Directional Modulus

Contact Info

Product

Resources

About