Vibration modal analysis of three-dimensional and four directional braided composites

Pei, Xiaoyuan; Li, Jialu; Chen, Kui-Fu; Ding, Gang

doi:10.1016/j.compositesb.2014.10.001

Cited by 27 publications

(16 citation statements)

References 24 publications

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“…Gu explored the ballistic impact damage of 3D braided composites. Pei et al explored the effect of microstructure on the dynamic parameters of 3D braided composites. Li et al focused on the high strain rate behaviors of 3D braided composites.…”

Section: Introductionmentioning

confidence: 99%

Transverse impact responses and failure mechanism of 3D braided composites by mesostructure model

Lyu

Wang

et al. 2019

Polymer Composites

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This article aims to establish a full‐size mesostructure model of three‐dimensional (3D) braided composites based on the real structural characteristics, to explore the transverse impact response characteristics and failure mechanism of 3D braided composites at different impact speeds. The results showed that four stress wave cycles were applied on the composite and decreased gradually. The corresponding displacement, peak load, and energy absorption capacity were investigated. All the values increased with the increase of impact velocity. In addition, the stress propagation features into length, width, and thickness directions of composite were distinctly different. Finally, the failure modes and damage morphologies were examined to reveal the failure mechanism of 3D braided composite under transverse impact loading.

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Section: Introductionmentioning

confidence: 99%

Transverse impact responses and failure mechanism of 3D braided composites by mesostructure model

Lyu

Wang

et al. 2019

Polymer Composites

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“…Such composites have excellent performance in crack resistance, impact resistance, and damage tolerance [4]. In the long-term use process, due to the excessive tension operating load, the composite may have debonding, edge damage (including fracture), and other defects [5,6]. Common nondestructive testing methods for composite materials include infrared thermography [7], ultrasonic C-scan technique [8], eddy current testing [9] and penetrant testing [10], etc.…”

Section: Introductionmentioning

confidence: 99%

Location of Tensile Damage Source of Carbon Fiber Braided Composites Based on Two-Step Method

et al. 2019

Self Cite

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Acoustic emission (AE) source localization is one of the important purposes of nondestructive testing. The localization accuracy reflects the degree of coincidence between the identified location and the actual damage location. However, the anisotropy of carbon fiber three-dimensional braided composites will have a great impact on the accuracy of AE source location. In order to solve this problem, the time-frequency domain characteristics of AE signals in a carbon fiber braided composite tensile test were analyzed by Hilbert–Huang transform (HHT), and the corresponding relationship between damage modes and AE signals was established. Then, according to the time-frequency characteristics of HHT of tensile acoustic emission signals, the two-step method was used to locate the damage source. In the first step, the sound velocity was compensated by combining the time-frequency analysis results with the anisotropy of the experimental specimens, and the four-point circular arc method was used to locate the initial position. In the second step, there is an improvement of the Drosophila optimization algorithm, using the ergodicity of the chaotic algorithm and congestion adjustment mechanism in the fish swarm algorithm. The smoothing parameters and function construction in the probabilistic neural network were optimized, the number of iterations was reduced, the location accuracy was improved, and the damage mode of composite materials was obtained. Then, the damage location was obtained to achieve the purpose of locating the damage source.

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“…It breaks the traditional concept of composite laminate structure. Braided composites have tremendous advantages and potential for improving strength, impact resistance, fracture toughness, and damage tolerance between and within layers [9,10]. They are widely used in aviation, aerospace, and other high-tech fields.…”

Section: Introductionmentioning

confidence: 99%

Effects of Temperature on Bending Properties of Three-Dimensional and Five-Directional Braided Composite

Jia

Pei

et al. 2019

Molecules

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The bending properties of three-dimensional (3Dim) and five-directional (5Dir) braided/epoxy resin composites at room temperature, 90 °C, 110 °C, and 150 °C and heating for 0.25 h, 10 h, and 30 h, respectively, were studied. The effect of different temperatures and heating times on the bending property of these composites was discussed. The results showed that the bending strength of these composites at 90 °C, 110 °C, and 150 °C and heating time of 0.25 h is 33.86%, 46.27%, and 83.94% lower, respectively, than that at room temperature. In addition, 3Dim–5Dir braided composites exhibit different damage modes at different temperatures, revealing different failure mechanisms. Heating temperature has greater influence on the bending properties of these composites than heating time. The results provided a basis for the application of resin-based 3Dim–5Dir braided/epoxy resin composites at different temperatures.

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Vibration modal analysis of three-dimensional and four directional braided composites

Cited by 27 publications

References 24 publications

Transverse impact responses and failure mechanism of 3D braided composites by mesostructure model

Transverse impact responses and failure mechanism of 3D braided composites by mesostructure model

Location of Tensile Damage Source of Carbon Fiber Braided Composites Based on Two-Step Method

Effects of Temperature on Bending Properties of Three-Dimensional and Five-Directional Braided Composite

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