Three Dimensional Continuum Damage Mechanics Model of Progressive Failure Analysis in Fibre-Reinforced Composite Laminates

Wang, Yuequan; Tong, Mingbo; Zhu, Shijie

doi:10.2514/6.2009-2629

Cited by 20 publications

(11 citation statements)

References 7 publications

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“…In the failure area, the stresses change drastically while the strains change smoothly. The strain form based on the three-dimensional Hashin criterion 32 is employed to predict the failures, such as the fiber failure, the matrix failure, the fiber-matrix shear failure and the delamination. The specific formulas are as follows.…”

Section: Illustrative Example: Composite Elevator Tolerancingmentioning

confidence: 99%

Clamping force integrated computer aided tolerancing in composite assembly

Wang

Chen

et al. 2020

Journal of Composite Materials

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Traditional computer aided tolerancing method could not accomplish the tolerancing and variation simulation well in composite assembly. The paper presents a clamping force integrated computer aided tolerancing method for composite assembly. The stochastic variations and the stackup of variations are affected by clamping forces. The clamping force modified probability distribution is used to represent the modification based on the verified FEA model of the composite assembly. The clamping forces are coordinated based on the main deformation mode extracted by the principal component analysis to satisfy the coaxial tolerance requirements of the composite assembly. The assembly of an aircraft composite elevator is considered to illustrate the computational aspects of the proposed methods. The computer aided tolerancing method involving clamping forces outlined in the paper is found to be effective for composite assembly.

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Section: Illustrative Example: Composite Elevator Tolerancingmentioning

confidence: 99%

Clamping force integrated computer aided tolerancing in composite assembly

Wang

Chen

et al. 2020

Journal of Composite Materials

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“…Figure 8 shows the normalized maximum load variation according to the total number of elements of the PFA model conducted with the CB and MLT model, respectively. The MLT model implemented PFA (MLT-PFA) [1] is the most commonly known PFA model, and this has been used in various studies [2,[31][32][33]. The normalized maximum load was calculated by dividing the predicted load by the experimental load.…”

Section: Fem Proceduresmentioning

confidence: 99%

Development and Evaluation of Crack Band Model Implemented Progressive Failure Analysis Method for Notched Composite Laminate

Yoon

Kim

et al. 2019

Applied Sciences

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Progressive failure analysis (PFA) is widely used to predict the failure behavior of composite materials. As a structure becomes more complex with discontinuities, prediction of failure becomes more difficult and mesh dependence must be taken into account. In this study, a PFA model was developed using the Hashin failure criterion and crack band model. The failure initiation was evaluated using the Hashin failure criterion. If failure initiation occurred, the damage variables at each failure mode (fiber tension and compression; matrix tension and compression) were calculated according to linear softening degradation and they were then used to derive the damaged stiffness matrix. This matrix reflected a degraded material, and PFA was continued until the damage variables became “1,” implying complete material failure. A series of processes were performed using the finite element method program ABAQUS with a user-defined material subroutine. To evaluate the proposed PFA model, experimental results of open-hole composite laminate tests were compared with the obtained numerical results. The strain behaviors were compared using a digital image correlation system. The obtained numerical results were in good agreement with the experimental ones.

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“…represent descending degree of effective bearing area on three main directions, and also can be represented the damage variables for fiber, matrix, and delamination, respectively. The value of damage variables di must be in the range of 0 to 1, where di=0 represents the perfect materials while di=1 denotes the completely damaged materials [15] .…”

Section: Composite Laminate Progressive Damage Analysis Based On Cdm mentioning

confidence: 99%

Characterization of Composite Laminate Lightning Strike Thermal-Mechanical Coupling Damage Based on Progressive Damage Model

Xiao¹,

Yin²,

Li³

et al. 2018

Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)

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For the sake of characterizing composite lightning strike coupling damage, based on the method of continuum damage mechanics (CDM) and phenomenological analysis, stiffness matrix progressive damage degradation model of composite laminate structure with lightning strike ablation damage and mechanical impact damage was constructed in this paper. An effective three-dimensional finite element model (FEM) of composite laminate structure with lightning strike coupling damage has been established based on ABAQUS software, and combine UMAT subroutine, which was coded by stiffness matrix progressive damage degradation model, strength prediction and failure process analysis were accomplished under tensile load. Excellent agreement between experimental data and numerical results is observed. The results indicate that models constructed in this paper can characterize the lightning strike coupling damage well, and have the abilities to predict the residual strength and failure process of composite laminate with lightning strike coupling damage.

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Three Dimensional Continuum Damage Mechanics Model of Progressive Failure Analysis in Fibre-Reinforced Composite Laminates

Cited by 20 publications

References 7 publications

Clamping force integrated computer aided tolerancing in composite assembly

Clamping force integrated computer aided tolerancing in composite assembly

Development and Evaluation of Crack Band Model Implemented Progressive Failure Analysis Method for Notched Composite Laminate

Characterization of Composite Laminate Lightning Strike Thermal-Mechanical Coupling Damage Based on Progressive Damage Model

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