Finite element analysis of the thermal residual stress distribution in the interphase of unidirectional fiber-reinforced resin matrix composites

Yu, Guo; Wang, Yanqing; Guo, Gangye; Xie, Yingchao

doi:10.1080/09276440.2018.1439638

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…However, it has huge influences on the stress values of the fiber and the interphase. This is similar to the conclusion obtained in [ 15 ], which should be attributed to the small volume fraction of the interphase and smaller elastic modulus of the matrix compared with that of the fiber. With the increase in the elastic modulus, both the compressive stress in the fiber and the tensile stress in the interphase increase.…”

Section: Resultssupporting

confidence: 92%

“…The geometrical models for the analytical methods need to be simplified before the calculation. Among the numerical methods, the FEM method is the most widely used [ 15 , 16 , 17 ]. With the periodical boundary conditions, the TRS distribution patterns of composites have been analyzed [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it is necessary to evaluate the factors influencing stress values in the interphase. The effects of the CTE and elastic modulus of the interphase on the thermal residual stress distribution patterns of composites have been evaluated [ 15 ]. In [ 15 ], the CTE and elastic modulus values are assumed to be uniform in the interphase.…”

Section: Introductionmentioning

confidence: 99%

“…The effects of the CTE and elastic modulus of the interphase on the thermal residual stress distribution patterns of composites have been evaluated [ 15 ]. In [ 15 ], the CTE and elastic modulus values are assumed to be uniform in the interphase. However, the elastic modulus of the interphase is believed to be heterogeneous in [ 30 , 31 , 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

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Finite Element Analysis of Residual Stress Distribution Patterns of Prestressed Composites Considering Interphases

Wang

Hang

2023

Materials

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New finite element analysis procedures are developed in this study to obtain the precise stress distribution patterns of prestressed composites. Within the FEM procedures, an equivalent thermal method is modified to realize the prestress application, and a multi-step methodology is developed to consider coupling effects of polymer curing and prestress application. Thereafter, the effects of interphases’ properties, including the elastic modulus and coefficient of thermal expansion (CTE), on the stress distribution patterns are revealed. Analytical methods for residual stress prediction are modified in this study to demonstrate the finite element analysis procedures. From the residual stress results, it is found that the increase in the prestress level tends to contribute to the initiation of interphase debonding. The increase in the elastic modulus or CTE of the interphase results in very large circumferential and axial stress values appearing in the interphase. When the elastic modulus in the interphase is heterogeneous, the predicted stress values in the fiber and matrix are similar to the results predicted with the equivalent elastic modulus of the interphases. However, the heterogeneous elastic modulus results in serious circumferential and axial stress gradients in the interphase.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Finite Element Analysis of Residual Stress Distribution Patterns of Prestressed Composites Considering Interphases

Wang

Hang

2023

Materials

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“…A concentric cylinder model has been widely used to represent the microstructure of fiberreinforced composites [27,28]. To understand the process of damage initiation and propagation occurring in between and within the different sublayers of multilayer interphase, initially, a simple multilayered concentric cylinder model is created.…”

Section: Model Geometry and Materials Propertiesmentioning

confidence: 99%

Micromechanical finite element analysis of effect of multilayer interphase on crack propagation in SiC/SiC composites

Fang

Sun

Gao

et al. 2021

Modelling Simul. Mater. Sci. Eng.

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The current study presents a micromechanical methodology to analyze the cracking behavior of a SiC/SiC composite with multilayer interphase using finite element method. To capture the constituent level damage initiation and propagation within the multilayer interphase, an axisymmetric unit-cell model was developed by discreetly modeling the fiber, the matrix, and the sublayers of interphase. Moreover, the cracking inside the interphase and debonding at the interfaces between different constituents were taken into account. The extended finite element method (XFEM) was applied to model the cracking inside the interphase and matrix. The cohesive surface approach was employed to describe the debonding behavior at all the interfaces. Adopting the proposed numerical approach, detailed local stress state and cracking behavior of SiC/SiC composites with multilayer interphase were analyzed. The results show that the multilayer interphase has a significant effect on the cracking behavior. Moreover, the growth length of secondary cracks had been demonstrated to be a useful parameter that is capable of connecting composites level behaviors and constituent level damages. From the various numerical methods used, the finite element simulation in conjunction with the XFEM and the cohesive surface approach is a precise and consistent way to analyze the crack propagation and prediction of failure for composites with multilayer interphase. The research provides a fundamental method for promoting the interphase design of SiC/SiC composites.

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Thermal residual stress and interface binding effects on fiber reinforced composites

2021

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Finite element analysis of the thermal residual stress distribution in the interphase of unidirectional fiber-reinforced resin matrix composites

Cited by 6 publications

References 16 publications

Finite Element Analysis of Residual Stress Distribution Patterns of Prestressed Composites Considering Interphases

Finite Element Analysis of Residual Stress Distribution Patterns of Prestressed Composites Considering Interphases

Micromechanical finite element analysis of effect of multilayer interphase on crack propagation in SiC/SiC composites

Thermal residual stress and interface binding effects on fiber reinforced composites

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