A new progressive damage model for predicting the tensile behavior of the three-dimensional woven carbon/carbon composites using micromechanics method

Abstract

A new progressive damage model for the three-dimensional (3 D) woven carbon/carbon (C/C) composites is developed at fiber-matrix level using the micromechanics method. A woven architecture based Representative Volume Element (RVE) model composed of yarns, matrix and yarn/matrix interface is constructed, in which the manufacturing void defects are accounted for. The fiber-matrix concentric cylinder model is employed as a repeating unit cell to represent the yarn, and the matrix micro strain field is computed analytically by the micromechanics method. The maximum stain criteria is utilized for fiber longitudinal breakage, and the Von-Mises criterion is applied for the damage initiation of matrix in both intra-yarns and inter-yarns. The damaged fiber and matrix are modeled by the stiffness degradation method combined with exponential damage evolution equations. The zero thickness cohesive elements governed by bilinear traction-separation constitutive are adopted for yarn/matrix interfacial debonding behavior. The micro progressive damage and failure behavior of the 3 D woven C/C composites subjected to tension is implemented through a developed user-defined material subroutine in commercial software ABAQUS. The predicted stress-strain response is in a good agreement with experimental results. In addition, the effect of manufacturing void defects is also examined by the developed model.

Statistical Distributions for Damage Modelling: A Retrospect

“…Exponential damage evolution equation is used in forming damage model for damaged fiber and matrix/yarn it is modeled by the stiffness degradation method and a new progressive damage model for the three-dimensional woven carbon/carbon composites is developed at fiber-matrix level elaborated in Wei, Shi, Li, and Tang (2022).…”

Damage mechanism characterization of ±35° and ±55° FW composite tubes using acoustic emission method

“…To calculate the energy of AE signals for each frequency interval, the Packed Wavelet Transform (WPT) was utilized. The analysis of each of these components was performed by applying the power spectrum analysis using Fast Fourier Transform (FFT) (Ni and Iwamoto, 2002; Oskouei et al., 2009; Wojtaszczyk, 1997; Xu et al., 2020; Yang et al., 2021). In this regard, the discrete wavelet transform (WT) is one of the most widely used types of wavelet transforms, in which the main signal is decomposed into some components called generalities and details.…”

“…The development of a computational model, which predicts the initiation and propagation of the damage in composite structures is a key aspect for a more comprehensive understanding of the behavior of these structures. For this purpose, the finite element (FE) analysis was used to enhance the accuracy of multiscale modeling (Jin et al., 2020; Wei et al., 2022; Wu et al., 2019). Furthermore, continuum damage mechanics (CDM) (Gao and Wang, 2021; Isometsä and Sjölind, 1999; Ribeiro et al., 2012) and micromechanical damage models (Liu et al., 2020; Zhu et al., 2021) have been used successfully.…”

Impact compression damages of 3D braided composites with/without axial yarns after thermo-oxidative ageing

“…Three-dimensional braided carbon fiber reinforced polymer composites (CF-PMCs) have potential applications in automotive, marine, aerospace and space industries due to high specific mechanical properties (Hu et al., 2020; Mouritz et al., 1999; Wei et al., 2021a; Zhang et al., 2020). Especially in the aerospace field, the friction between aircraft and atmosphere can increase the surface temperature of fuselage to 177 °C during flight (Tsotsis et al., 2001).…”