Effect of off-axis angle on low-velocity impact and compression after impact damage mechanisms of 3D woven composites

Zhang, Diantang; Gu, Yuanhui; Zhang, Zhongwei; Jia, Minghao; Yue, Songlin; Gan, Li

doi:10.1016/j.matdes.2020.108672

Cited by 32 publications

(9 citation statements)

References 38 publications

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“…In recent years, XCT imaging have been used to detect the damage behaviors of fiber reinforced composites in drop-weight and ballistic impact experiments. 87,[142][143][144][145][146] Bull et al 85 performed multi-scale 3D X-ray inspections, as shown in Figure 43, including micro-focus XCT and synchrotron radiation-computed laminography analyses of low velocity impact damage in CFRP. The lower resolution images indicated that the particle-toughening system suppresses delamination with very little effect on intralaminal damage.…”

Section: Mechanical Properties Of the Fiber Reinforced Compositesmentioning

confidence: 99%

A review of applications of CT imaging on fiber reinforced composites

Gao

Xin

et al. 2021

Journal of Composite Materials

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With the development of X-ray computed tomography over the last few decades, it is gradually considered to be a powerful tool in the field of materials research. This paper presents a comprehensive review of applications of CT imaging on fiber reinforced composites, from polymer composites to ceramic matrix composites. The principle of X-ray CT and experimental tomography setups was described firstly. Then, in situ experimental devices developed in recent years were illustrated. Furthermore, the applications of X-ray CT imaging on manufacturing process, modeling, mechanical damage, physical, and chemical behaviors were reviewed in detail. Besides, advantages and limitations of X-ray CT imaging were pointed out and the future development was prospected.

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Section: Mechanical Properties Of the Fiber Reinforced Compositesmentioning

confidence: 99%

A review of applications of CT imaging on fiber reinforced composites

Gao

Xin

et al. 2021

Journal of Composite Materials

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Section: Introductionmentioning

confidence: 99%

“…29 Sket and Zhang et al used X-ray computed tomography to obtain the damage characteristics and determined the relationship between the evolution of damage and specimen geometrical parameters under applied loading . 30,31 In order to understand the damage mechanism, it is also essential to study the stress condition. At present, DIC technology can only obtain the strain distribution on the surface of specimens, so finite element analysis technology based on computer is widely used to study the internal strain and stress distribution of braiding yarns.…”

Section: Introductionmentioning

confidence: 99%

Analysis of in-plane compression failure mechanism in carbon fiber braided composite with different off-axial angles

Xiao

Pan

et al. 2022

Journal of Composite Materials

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This paper focuses on the in-plane compression mechanism of two-dimensional biaxial braided composite laminates under quasi-static compression and dynamic compression. Three types of specimens with different off-axial angles in respect of OA00, OA60, and OA90 were employed for compression experiments. The surface damage process of the specimen was recorded using optical camera and infrared thermal imaging technology. The internal damage morphology of the tested specimens was analyzed by X-ray computed tomography. The progressive damage behavior of braiding yarns and matrix resin was simulated by a three-dimensional meso-level finite element model. Experimental and simulation results revealed that the off-axial angle significantly affects mechanical properties and damage mechanisms. The stress distribution and compression deformation of braiding yarns are affected by the boundary conditions of load-bearing yarn, which relies on the off-axial angle. The stress of OA00 specimen is concentrated at the interface of yarn and matrix resin. The failure mode of OA00 specimen is dominated by the shear band, which is induced by the interface microcracks between yarn and matrix resin. The stress of OA60 and OA90 specimens are concentrated at the undulation position of the braiding yarn. The critical failure mode of OA60 and OA90 specimens is delamination induced by interlaminar microcracks. The OA60 specimen achieves a better compression response with respect to bearing the load and absorbing the fracture energy because the sub-laminate that is formed after delamination can continue to bear the load until its intralaminar fracture occurs.

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“…Combining the experimental tests and the numerical simulation, Tuo [ 15 ] investigated the damage and failure mechanism of thin composite laminates under the CAI. Zhang [ 16 ] analyzed the influence of the off-axis angles on the LVI and CAI damage mechanism of three-dimensional woven carbon/epoxy composites, and the results indicate that the off-axis samples exhibited higher damage volumes and out-of-plane deformation. Applying the finite element method, Bull [ 17 ] studied the effect of the parameters observed from the previous studies on the CAI.…”

Section: Introductionmentioning

confidence: 99%

Parametric Study on Low-Velocity Impact (LVI) Damage and Compression after Impact (CAI) Strength of Composite Laminates

Guo

Liu

et al. 2022

Polymers

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A full-scale model for predicting low-velocity impact (LVI) damage and compression after impact (CAI) strength was established based on a subroutine of the material constitutive relationship and the cohesive elements. The dynamic responses of the laminate under impact load and damage propagation under a compressive load were presented. The influences of impact energy and ply thickness on the impact damage and the CAI strength were predicted. The predicted results were compared with the experimental ones. It is shown that the predicted value of the CAI strength is in good agreement with the experimental result. As the impact energy reaches a certain value, the CAI strength no longer decreases with the increase in the impact energy. Decreasing the ply thickness can effectively improve the damage resistance and CAI strength.

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Effect of off-axis angle on low-velocity impact and compression after impact damage mechanisms of 3D woven composites

Cited by 32 publications

References 38 publications

A review of applications of CT imaging on fiber reinforced composites

A review of applications of CT imaging on fiber reinforced composites

Analysis of in-plane compression failure mechanism in carbon fiber braided composite with different off-axial angles

Parametric Study on Low-Velocity Impact (LVI) Damage and Compression after Impact (CAI) Strength of Composite Laminates

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