Evaluation of cutting force of high-performance fibers’ dynamic cutting behaviour

Abstract

An analysis of fiber mechanics during cutting is conducted using a rotating cutting set up. It was found that high cutting speeds, low cutting angles, and high cutting normal forces lead to low values of cutting force. In this study, a set of high performance organic and inorganic fiber types are tested throughout different conditions of cut testing. Inorganic fibers gave the lowest specific cutting force. Values of cutting stresses on the edge of the blade were proved to be a function of fibers’ Young’s moduli. Higher Young’s moduli give lower cutting stresses on the blade edge while cutting fibers. Organic fibers were found to have a higher cutting resistance than carbon and glass fibers. A significant indirect correlation was found between the shear stress of the fibers and the fiber Young’s modulus. The value of the cutting force is significantly affected by both normal force and cutting velocity. The analysis of fiber mechanics during cutting is conducted using a rotating cutting set-up. It was found that high cutting speeds, low cutting angles, and high cutting normal forces lead to low values of cutting force. In this study, a set of high performance organic and inorganic fiber types are tested throughout different conditions of cut testing. Inorganic fibers gave the lowest specific cutting force. Values of cutting stresses on the edge of the blade were proved to be a function of fibers Young’s modulus. Higher Young’s modulus gives lower cutting stresses on the blade edge while cutting fibers. Organic fibers were found to have a higher cutting resistance than carbon and glass fibers. A significant indirect correlation was found between the shear stress of the fibers and the fibers Young’s modulus. The value of the cutting force is significantly affected by the normal force, cutting angle, and cutting velocity.

Analysis and prediction of woven fabric design impact on fabric/polymer composite drilling energy

“…This may be due to the change in the mechanical properties of the yarns owing to the penetration of the polymer inside its cross-section, binding the fibers and increasing its stiffness, reducing the formation of fiber fuss, and lowering the value of its specific drilling power. The measurements of the cutting force of the yarns extracted from different fabrics laminates, 50 given in Table 4, indicate the increase in the cutting force of the different yarns, depending on the packing density of the yarns as well as the yarn specifications and material. Cotton yarns have higher cutting stress when reinforced by polymer since the yarn becomes more impregnated by the polymer due to its lower packing density than the other samples from the Polyester yarns.…”

Investigation of the influence of high molecular weight polyethylene and basalt content used in three-dimensional weft-knitted fabrics on the mechanical risks

“…12 High-performance fibers can be part of today's and tomorrow's solutions for high-tech products. 13…”

“…12 High-performance fibers can be part of today's and tomorrow's solutions for high-tech products. 13 Basalt fiber (BF) is known as the new material of the 21st century, 14 and is widely used in the military and civilian fields. Up until now BS fabrics have not been recognized as a material for PPE; rather, they have been used mostly for technical purposes.…”