High velocity impact tests on high temperature carbon-carbon composites

Xie, Weihua; Meng, Sheng; Ding, Li; Jin, Hua; Han, Guifang; Wang, Luoyi; Scarpa, Fabrizio; Q., R.

doi:10.1016/j.compositesb.2016.05.031

Cited by 32 publications

(7 citation statements)

References 41 publications

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“…1 and Fig. 2 [44] consist of a two-stage light-gas gun and a fast electric heating system. The two-stage light-gas gun has been used to accelerate spherical projectiles.…”

Section: High-temperature Impact Experimental Tests 21 Design Of Thementioning

confidence: 99%

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High-temperature high-velocity impact on honeycomb sandwich panels

Xie

Meng

Ding

et al. 2018

Composites Part B: Engineering

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This work presents an investigation on the damage and high-speed impact deformation mechanisms at elevated temperatures in honeycomb sandwich panels made from PM1000 and PM2000 alloys. The impact temperatures ranged from 22°C to 866°C. The investigation was performed experimentally using a custom-made gas gun rig, and by using Finite Element and developing a phenomenological analytical model to predict the residual velocity and ballistic limit equations for the case in which the diameter of the projectile is close or smaller to the honeycomb cell length. The sizes of the holes have been also evaluated by carrying out numerical thermal loading simulations on honeycomb sandwich specimen models impacted at high speed. The predictions provided by the Finite Elements and the analytical model give a good agreement with the results from the experimental tests. The hole diameters for the two idealized normal impact cases, in which the projectile hits the cell core and at the triple-wall intersection of the core, were also presented as a function of the projectile diameter and velocity in this paper.

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“…1 and Fig. 2 [44] consist of a two-stage light-gas gun and a fast electric heating system. The two-stage light-gas gun has been used to accelerate spherical projectiles.…”

Section: High-temperature Impact Experimental Tests 21 Design Of Thementioning

confidence: 99%

“…Schematics of the impact facilities: (a) Two-stage light gas gun; (b) Impact setup in light gas gun impact chamber Impact test setup (From[44])The ballistic performance of honeycomb sandwich specimens was investigated by oblique impact with velocities of 2.476 km/s, 2.411 km/s, 3.5 km/s and 3.258km/s.Fig. 3shows a typical sketch of the impacts.…”

mentioning

confidence: 99%

High-temperature high-velocity impact on honeycomb sandwich panels

Xie

Meng

Ding

et al. 2018

Composites Part B: Engineering

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“…Densification has a direct impact on processing cost. Several studies have been conducted with the goal of fabricating C/C composites via a single manufacturing process [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

One-Step Densification of Carbon/Carbon Composites Impregnated with Pyrolysis Fuel Oil-Derived Mesophase Binder Pitches

Yang

Park

Kuk

et al. 2020

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Carbon/carbon (C/C) composites are conventionally manufactured by liquid-phase impregnation (LPI), in which the binder pitches and phenolic resins are impregnated into the composites, and by chemical vapor infiltration (CVI). However, CVI has certain limitations in that expensive gases, such as methane and propane, are used and a long reaction time is required. Therefore, LPI is more widely used, as it employs economical pitches. In this study, the effects of one-step preparation on mechanical properties of C/C composites impregnated with mesophase binder pitches and phenolic resins have been investigated. The C/C composites containing four types of 20 wt.% mesophase binder pitches had differences in softening point (SP) and quinoline insoluble (QI) contents. After conducting trials on mesophase formation using different heat treatment temperatures and times, the best density and mechanical properties of the C/C composites were achieved using the mesophase binder pitches with 170 °C SP. However, when SP 200 °C was used, the density of the C/C composites was not further improved. This is because the binder pitches were not properly impregnated into the composites due to the high viscosity and QI of the binder pitches. Furthermore, the C/C composites fabricated with 20 wt.% pitch 2 exhibited the highest mechanical properties.

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“…The damages were measured quantitatively by calculating the failure zones' areas on the composite samples' front and back surfaces. Table 1 demonstrates the input and output variables of the high-velocity impact test results and dimensionless damaged areas [19].…”

Section: Methodsmentioning

confidence: 99%

“…Xie et al [19] studied both experimentally and analytically on high-velocity impact effects on C/C composites at high temperatures. The ranges for projectile velocity and experimental temperatures are 1600-4600 m s −1 and 25-1429 °C, respectively.…”

Section: Introductionmentioning

confidence: 99%

Stochastic optimization and modeling of high-velocity impact tests on high-temperature carbon–carbon composites

Aktaş

Aydın

2021

SN Appl. Sci.

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In this study, it is intended to optimize a high-velocity impact case of a composite plate. The case selected from literature focused on the failure response of advanced carbon–carbon (C/C) composites under high-velocity impacts. Based on the stochastic optimization method, three unique models are introduced within the present study's scope as dimensionless damage areas of front and back sides and the composite impact energy response. The difference between the equations found in the present study and the base study is the number of variables. Obtained prediction models consist of only the tests' input variables; thus, these models can be considered the essential prediction functions of high-velocity impact response of C/C composites under high temperatures. Multiple nonlinear regression method is used for objective functions of the optimization problem. Since the determination coefficient values have been found quite similar to the ones in the literature, the presented models can be considered successful in predicting the results. By utilizing the novel regression functions presented in this study, the damaged areas are minimized. Without the necessity of experimental research, further predictions can be made by operating the models found in the present study.

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High velocity impact tests on high temperature carbon-carbon composites

Cited by 32 publications

References 41 publications

High-temperature high-velocity impact on honeycomb sandwich panels

High-temperature high-velocity impact on honeycomb sandwich panels

One-Step Densification of Carbon/Carbon Composites Impregnated with Pyrolysis Fuel Oil-Derived Mesophase Binder Pitches

Stochastic optimization and modeling of high-velocity impact tests on high-temperature carbon–carbon composites

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