Tensile and shear behavior of plain weave fabric carbon fiber reinforced polymer at elevated temperatures

Abstract

Plain weave fabric carbon fiber reinforced polymer (CFRP) Composites are tested at four different temperature conditions: room temperature, 82 C, 100 C, and 120 C. The variation in their tensile and in-shear properties are studied. The tensile properties seemingly increased when the specimens are tested close to their curing temperature but reduced up to 7.88% with respect to the room temperature conditions, when they are tested close to their glass transition temperature. The in-plane shear strength and the shear modulus decreased significantly, due to the fiber-matrix interaction, at higher temperature. The specimens tested close to the glass transition temperature lost their properties up to 44.36% in in-plane shear strength and 29.26% in shear modulus, with respect to their properties at room temperature. These reductions are predicted by four predictive models and are compared with the experimental data. For predicting the tensile strength at elevated temperature, it is suggested to use modified Gibson or Nadjai model and for the in-plane shear strength, Hawileh model.

Assessment of tensile behaviour of plain weave fabric CFRP composites using acoustic emission technique and deep learning

“…More details about the resin, fibre and prepreg are presented in Table 1. Further details about the preparation of composites can be found in the authors' previous research works [12]. From the cured CFRP slabs, tensile test specimens are cut according to ASTM D3039 standard longitudinally along the fibre warp direction.…”

“…One, to assess the mechanical behaviour the composites using AE technique and two, to validate the efficacy of LZ complexity as an efficient AE parameter for the damage classification using deep learning neural networks. Readers, who are interested in the mechanical properties of the plain weave fabric CFRP such as the tensile strength, strain at failure and Young's modulus are directed to the authors' previous works [12]. To alleviate the confusion in differentiating fibre breaking and through-thickness crack growth, several researchers recommended the utilization of the frequency characteristics of the signal, say peak frequency [14,15].…”

Mode I and II interlaminar fracture toughness of glass/carbon inter‐ply hybrid FRP composites: Effects of stacking sequence and testing temperature

“…Further, moisture, [61] temperature and loading speed [62][63][64][65][66][67][68] also have an influence. [27,69,70] The glass transition temperature (T g ) of the thermoset polymer matrices ideally used in FRP composites is a limiting factor that restricts their usage in high temperature environments. [71] The main focus of this work is to assess the elevated temperature delamination behavior (mode I and mode II ILFT) of carbon fiber/glass fiber epoxy interply epoxy hybrid composites.…”

Experimental study on the bond behavior of polymer impregnated basalt textile embedded in a fine‐grained concrete

“…So that the textile reinforced polymer composite has been widely studied and applied in a variety of areas due to its excellent performance. [16][17][18] As for textile reinforced concrete, its mechanical properties can also be effectively improved by pre-impregnation of textile with polymer. Some studies have showed that the impregnation on the textile decreases the empty spaces among filaments and improves the stress transfer, which increases not only the bonding but also the mechanical properties of TRC.…”