Experimental and numerical investigation on flexural behavior of acrylonitrile‐butadiene‐styrene polymer

Abstract

Acrylonitrile‐butadiene‐styrene (ABS) is an extensively utilized rubber‐toughened amorphous thermoplastic in industry. Compared to other amorphous thermoplastics, the most promising mechanical quantity of ABS is its high impact resistance. Thus, understanding the mechanical response of ABS to multiaxial loads is of the great industrial concern. The primary objective of this study was to characterize the flexural response of ABS by conducting three‐point bending tests at two distinct deformation rates of 5 and 10 mm/s to figure out the deformation rate effect on the flexural response of ABS. It was observed that the ABS act stiffer with an increased deformation rate. Numerical implementation of three‐point bending tests for each deformation rate was performed using the semi‐analytical material model (SAMP‐1) available in Ls‐Dyna finite element code. The simulations for each deformation rate were run depending on SAMP‐1 and Von‐Misses yield surface formulations to figure out the effect of nonidentical material behavior of ABS in tension, compression, and shear on flexural response. The percentage error in the predicted peak force values considering the compression and shear test data (SAMP‐1) and without it (Von Misses) was 3% and 7% for deformation rate of 5 mm/s and 5% and 12% for deformation rate of 10 mm/s. Hence, predicting the flexural behavior of ABS accurately, dissimilar material behavior needs to be taken into consideration. Moreover, associated and nonassociated flow rule effects on the flexural response of ABS were numerically investigated and there was no significant influence observed on the flexural response of ABS.

Numerical prediction of mechanical behavior of acrylonitrile-butadiene-styrene under three-point bending and impact loadings by Anand–Gurtin material model

“…13 Apart from the strain rate and temperature influences, hydrostatic pressure also plays an important role in the yield behavior of ABS. 8,14,15 The hydrostatic pressure effect on the yield behavior of ABS can be comprehended from its dissimilar material behavior observed between tension and compression. 14,16 ABS behaves considerably stiffer under compression compared to tension.…”

Parametric investigation for mechanical properties of tetra‐anti‐chiral auxetic structures of polymer under compressive loading

“…Styrene enhances the rigidity and ease of formation of polymer. [ 40 ] ABS is widely used in various applications, namely, automotive instrument panel, car bumper, door handles, seat belt fastening, and radiator grills. [ 52 ] Table 3 shows material properties of ABS used for the present investigation.…”

“…From literature survey, it is observed that several attempts have been made to investigate the influence of process parameters on mechanical properties of ME fabricated parts of standard sizes recommended by International Organization for Standardization (ISO) and American Society for Testing and Materials (ASTM) such as ISO 178, ASTM D638, ASTM D695, and ASTM D790. [35][36][37][38][39][40] Some researchers have studied the effect of geometric parameters on mechanical properties of tetra-anti-chiral auxetic structures of various polymeric materials. [10,17,19,41,42] However, very limited research work has been reported on studying the influence of process parameters of material extrusion on mechanical properties of tetra-anti-chiral structures.…”

Acrylonitrile-Styrene-Acrylate Particles with Different Microstructure for Improving the Toughness of Poly(styrene-co-acrylonitrile) Resin

“…Also, modified ethylene-propylene-diene terpolymer prepared by solution polymerization was introduced to toughen SAN resin [7,8], a mass of solvent was used here, and the product conversion rate was low [9]. It was generally accepted that adding acrylonitrilebutadiene-styrene copolymer (ABS) was a successful and efficient way to toughen SAN resin [10,11]. Nevertheless, the double bonds (C=C) in polybutadiene (PB) rubbery core of ABS particles are prone to deterioration and cross-linking due to oxygen, ultraviolet (UV), and other severe environmental circumstances, which results in poor aging resistance, weatherability, and antidiscoloration [12,13].…”