Investigation into Thermomechanical Response of Polymer Composite Materials Produced through Additive Manufacturing Technologies

Abstract

This paper presents the static mechanical behavior and the dynamic thermomechanical properties of four market-available reinforced and non-reinforced thermoplastics and photopolymer materials used as precursors in different additive manufacturing technologies. This article proposes a characterization approach to further address development of aeronautic secondary structures via 3D-printed composite materials replacing conventional manufactured carbon fiber reinforced polymer (CFRP) composites. Different 3D printing materials, technologies, printing directions, and parameters were investigated. Experimental results showed that carbon-reinforced ONYX_R material exhibits a transition point at 114 °C, a 600 MPa tensile strength, and an average tensile strain of 2.5%, comparable with conventional CFRP composites manufactured via autoclave, making it a suitable candidate for replacing CFRP composites, in the aim of taking advantage of 3D printing technologies. ONYX material exhibits higher stiffness than Acrylonitrile-Butadiene-Styrene Copolymer (ABS), or conventional Nylon 6/6 polyamide, the flexural modulus being 2.5 GPa; nevertheless, the 27 °C determined transition temperature limits its stability at higher temperature. Daylight High Tensile (further called HTS) resin exhibits a tensile strength and strain increase when shifting the printing direction from transversal to longitudinal, while no effect was observed in HighTemp DL400 resin (further called HTP).

The Analysis of Mechanical Properties and Geometric Accuracy in Specimens Printed in Material Jetting Technology

“…Specimens printed in vertical (Z) and horizontal (X) positions with Rigur material have the lowest A summary of mean values, standard deviation (SD), and coefficient of variation (CV) of tensile strength, Young's modulus, Poisson's ratio, linear coefficient, as well as p-value is gathered in Table 2. Notes: (1) standard deviation (SD); (2) coefficient of variation (CV).…”

“…Additionally, the results for tensile strength (Figure 6) and mechanical properties of both Young's modulus (Figure 7) and Poisson's ratio (Figure 8) for each specimen are presented. Notes: (1) standard deviation (SD); (2) coefficient of variation (CV).…”

“…The durability and mechanical properties of polymer have been improved by the latest research and by using advanced technology [1][2][3][4][5]. The reason for this is that some end-use applications are suitable through using three-dimensional (3D) printing technology [6][7][8].…”

Experimentation and Numerical Modeling of Peak Temperature in the Weld Joint during Rotary Friction Welding of Dissimilar Plastic Rods

“…The research flow involves designing the workpiece, investigating optimum printing parameters using fused deposition modeling (FDM) [27], fabricating the workpieces, FRW, the determination of peak temperature by an infrared thermal imager [28] under five different rotational speeds [29], investigating the peak temperature by applying COMSOL multiphysics software, comparing the simulation results with the experimental results, and proposing a database of dissimilar RFW of ABS and PC rods. In the COMSOL multiphysics software, an attempt was made to simulate the peak temperature in the weld joint under the cycle time of 60 s. Generally, ABS thermoplastic material has good toughness and impact properties [30]. PC is an engineering thermoplastic material that has durability and thermal insulation [31,32].…”

Styrene–butadiene–styrene-based stretchable electrospun nanofibers by carbon nanotube inclusion

“…31 To improve the gas permeability, polybutadiene was copolymerized with polystyrene to form blockcopolymers. [32][33][34] Also, the composite structure of SBS/PStyr was investigated, 35,36 where such blending modification improved the physical and mechanical properties, transparency, coloring, and antistatic properties and reduced the production cost. 37 Rubbery polymer fibers join and entangle during electrospinning due to their low T g .…”