Bend radius

About: Bend radius is a research topic. Over the lifetime, 3303 publications have been published within this topic receiving 35415 citations. The topic is also known as: minimum bend radius.

Stabilized hose assembly for transmitting fluid

Abstract: A flexible hose assembly (10) transmits fluid between relatively movable components, such as a drive motor (16) secured to the main frame (14) of a vehicle (12) and pressurized fluid supply ports (13) resiliently supported on the main frame (14), in a constricted region where typical hose motions could result in chafing or cutting from contacts with adjacent structure. A flexed portion (39) of the hose (38) extends within a curved tubular rigid sleeve (47) which is fixed relative to one (16) of the fluid transmitting components (16, 13) and free of rigid attachment to the other (13). The diameter of the inside passage (51) of the sleeve (47) is greater than that of the hose (38) enabling limited necessary flexing while preventing more sizable and potentially damaging hose (38) movements. The curved hose portion (39) may have a radius of curvature smaller than the normal minimum bending radius as the sleeve (47) restrains kinking by preventing concentration of bending forces at one point on the hose (38).

Optical delivery of nanospheres using arbitrary bending nanofibers

Abstract: This work reports an optical delivery of about 700-nm diameter polystyrene spheres along arbitrary bending nanofibers (600 nm in diameter) including complete loop structure. Dependence of bending loss on bending radii and central angles of the nanofiber has also been investigated. The results show that, for a specific input optical power, there is a corresponding minimum bending radius for optical trapping and delivery. In other words, for a specific input optical power, when the bending radius of the nanofiber is larger than the minimum bending radius, the 700-nm diameter nanospheres can be trapped and delivered along the bending nanofiber. Vice versa, the nanospheres will be escaped from the bending nanofiber during the delivery process because of relatively large bending loss.

Bendable glass articles with alkali-free glass elements

Abstract: A bendable stack assembly that includes a glass element having a composition substantially free of alkali ions, an elastic modulus of about 40 GPa to about 100 GPa, a final thickness from about 20 µm to about 100 µm, a first primary surface substantially in tension upon a bending of the element, and a second primary surface substantially in compression upon the bending, the primary surfaces characterized by a prior material removal to the final thickness from an initial thickness that is at least 20 µm greater than the final thickness. The glass element also includes a protect layer on the first primary surface. In addition, the glass element is characterized by an absence of failure when the element is held during the bending at a bend radius of about 15 mm for at least 60 minutes at about 25C and about 50% relative humidity.

Construction and process of all-plastic cables for power and manual driving applications

Abstract: A plastic driving cable for attachment and use in driving systems. The plastic driving cable is comprised of an all-plastic inner core, with or without an outer jacket, and all-plastic molded end fittings. The inner core has a configuration of interwoven or bundled fibers of high performance polymer providing a cable of increased strength and flexibility that fits a smaller bending radius and has high performance at low temperatures. The outer jacket comprises a non-metallic material that surrounds the inner core providing improved performance at low temperatures.

Mapping the Strain Distributions in Deformed Bulk Metallic Glasses Using Hard X-Ray Diffraction

Abstract: The deformation behavior of Cu45 Zr46.5 Al7Ti1.5 bulk metallic glass (BMG) under bending was investigated in-situ using high-energy X-ray synchrotron diffraction. Samples were bent using two different benders with radii of 10 and 20 mm. The components of the strain tensor were determined from the change of positions of the first maximum of the diffracted intensity in reciprocal space. The procedure of data treatment was improved by the introduction of direct beam off-center correction. Comparing results for the two different bending radii, we found that the zero stress region does not necessarily lay within the central part of the specimen. Bending with smaller radius resulted in symmetric strain distribution, whereas a larger bending radius revealed strong asymmetry. Furthermore, bending with a smaller radius (10 mm) shows steeper strain gradients as compared with the situation in which the larger bending radius (20 mm) was used. Using a smaller bending radius implies reaching higher tensile/compressive stresses and reveals the signs of the plastic deformation, which are demonstrated as a saturation of elastic strains.