Tensile and flexural behaviour of steel materials used in the construction of crop processing machines

Abstract

This experiment investigated the mechanical properties of mild steel, galvanized iron and stainless steel when subjected to tensile and flexural loading. Work pieces of 54 samples were prepared having a gage length of 30 mm for material thicknesses of 1, 1.5 and 2 mm which was replicated three times. Properties such as peak force at break, elongation at break, stress, and strain of the materials were studied using a testometric M500-100AT Universal Testing Machine (UTM). The peak force obtained for mild steel was 2495.43, 4643.33 and 6215.67 N for 1, 1.5 and 2 mm respectively. The elongations of mild steel were 48.88, 54.77 and 56.11 mm for 1, 1.5, and 2 mm respectively. For stainless steel tensile strength analysis, the peak forces obtained are 9486.66, 9558.00 and 9522.33 N for 1, 1.5 and 2 mm respectively. The deformation of the material occurred at similar loads having stresses of 535.20, 583.51 and 486.88 N/mm2 for the thicknesses investigated. Similarly, the stress-strain relationship of the material ranged from 10131.20 N/mm2 to 12757.33 N/mm2 while the elongation amount of strain it can withstand before failure are 30.54, 38.64 and 47.74 mm. The bending strength for mild steel both at peak and at break increased as the thickness increases. Bending strength at peak are 364.50, 378.33 and 381.87 N/mm2 for 1, 1.5 and 2 mm respectively with 2 mm expectedly showing the greatest bending strength. Also, for stainless steel, the deflection of the different length of stainless steel at peak increased as the length increased unlike for mild steel with a reverse case. The deflection at break decreased as the length of the materials increases. The bending strength at peak and the bending modulus increased as the length of the material was increased, while at break the reverse was the output. From this investigation, it can be observed that stainless followed by mild steel have higher tensile and yield strength than galvanized iron. This explain the wide applications of stainless steel and mild steel in various crop processing machines constructions and other engineering uses that require high strength.

Experimental and theoretical behavior of cementitious plates containing ethylene vinyl acetate reinforced with glass woven fabric under impact load

“…Considering the peak impact force graphs of the coated and uncoated samples with 18% EVA replacement are examined (Figure 10C, D), it is determined that the peak impact force values obtained with Method 2 are closer than the experimental data, as in the samples without EVA replacement (Figure 10A, B). The reason for this is that the samples are in the normal weight concrete (NWC) class [29]. In cases where the EVA replacement rates are 32% (Figure 10E, F), 45% (Figure 10G, H), and 56% (Figure 10I, J), the peak impact force values obtained from Method 1 are closer to the experimental values than those from Method 2.…”

An insight into the mechanical and tribological behavior of carbon-flax reinforced bioepoxy hybrid composite bone plates for orthopedic applications

“…Similarly the flexural strength and shear strength values of the hybrid composite (234.96 MPa and 289.01 MPa) plates are also closer to that of femur bone 33 when compared to the metallic plates. 30,34 So these hybrid composites can be a better prospect in fabricating bone plates with respect to strength. The wear properties of the hybrid composite also holds good for making a biocompatible bone plate.…”

A novel method for long‐term preserving of urine microstructure using poly(vinyl chloride)

“…To get insight into the strength of adhesion of the cover slide to the main slide in the presence of the polymers, the tensile strength (adhesive strength) was determined by applying a force at the tested material until it was broken down. The tensile strength is defined by Equation () 34,35 …”