Modeling and experimental study on the mechanical behavior of glass/basalt fiber metal laminates after thermal cycling

Abstract

In the present study, the effect of thermal cycling and stacking sequence on the tensile behavior of fiber metal laminate (FML) composites containing glass and basalt fibers was investigated. To fabricate the FML samples, fibers reinforced epoxy composite were sandwiched between two layers of 2024-T3 aluminum alloy sheet. 55 thermal cycles were implemented at a temperature range of 25–115°C for 6 min. The tensile tests were carried out after the thermal cycling procedure, and the results were compared with non-thermal cycling specimens. Scanning electron microscopy (SEM) was employed for the characterization of the damage mechanisms. The FMLs containing four basalt fibers’ layers showed higher values of tensile strength, modulus, and energy absorption. On the other hand, the lowest strength and fracture energy were found in the asymmetrically stacked sample containing basalt and glass fibers, due to weak adhesion between composite components (basalt and glass fibers). The lowest tensile modulus was found in the sample containing glass fibers that was due to the low modulus of the glass fibers compared to basalt fibers. In the case of the samples exposed to thermal cycling, the highest and the lowest thermal stabilities were observed in basalt fibers samples and asymmetrically stacked samples, respectively. In accordance with the experimental results, a non-linear damage model using the Weibull function and tensile modulus was employed to predict the stress-strain relationship. The simulated strain–strain curves presented an appropriate agreement with the experimental results.

Numerical simulation on hydraulic fracture propagation in laminated shale based on thermo-hydro-mechanical-damage coupling model

“…Since the heterogeneity of mechanical properties is one of the critical factors causing macroscopic nonlinear fracture, the Weibull distribution can be utilized to characterize the heterogeneity and anisotropy of meso-characteristics (Azghan et al., 2021; Guo et al., 2020c). Therefore, the mechanical properties of shale, including the tensile strength, compressive strength and elastic modulus, are considered anisotropic and follow a Weibull distribution as shown in equation (17) below.…”

Synergetic effects of graphene nanoplatelets/montmorillonite on their dispersion and mechanical properties of the epoxy‐based nanocomposite: Modeling and experiments

“…[37][38][39][40] Both of these methods have been utilized to model and predict the tensile modulus of composites that acceptable results have been achieved. [33,41] Also, the Weibull statistics are widely utilized to predict and model the mechanical behavior of materials such as fibers, [42][43][44] fiber-reinforced composites, [45][46][47][48] aluminum matrix composite, [49] and nanocomposites. [50,51] Despite the remarkable studies of hybrid nanocomposites, the synergetic effects of nano reinforcements on their dispersion quality as well as the mechanical properties of nanocomposites are still challengeable and need more discussion.…”

Multi attribute decision making through COPRAS on tensile properties of hybrid fiber metal laminate sandwich structures for aerospace and automotive industries

“…Azghan and Farsani 26 and Azghan et al 27 investigated how stacking patterns and heat cycling affected the flexural and tensile properties of FMLs. Al alloy sheets were employed for the skin, while the composites section consisted of four layers of basalt (B) fiber and/or G-fiber stacked in five different ways.…”