Hysteresis Hysteresis is the property where the state of a system depends upon the history. For a rubber band, to reach a certain amount of stretch (deformation) it takes more force if you are “loading” it as opposed to “unloading”. In the second and third experiment using rubber bands the rubber bands are stretched to their limit. Mar 3, 2025 · Lab 4 explores Hooke's Law through rubber band dynamics, offering insights into introductory physics concepts for students at Athabasca University. For example, the concept of hysteresis loop is used to explain the behavior of rubber bands, which exhibit both elasticity and plasticity. stretch is plotted and analyzed to determine if it Jan 11, 2025 · I would guess that the bungee cord has more hysteresis than a simple rubber band. The objective is to study the elastic properties of a spring and rubber band and determine how closely they follow Hooke's law. Learn what hysteresis is. This paper discusses an experiment with an original device to measure torsion deformations as a function of applied torques, which permitted construction of the hysteresis cycle for a rubber hose and various tubes. Introduction: I. On unloading, they show hysteresis. The experiment must be done with care. Gently, being careful not to burn yourself on the hot water or steam, lower the weight and rubber band into the graduated cylinder. In the lab we are supposed to discover that the rubber band does not obey Hooke's Mar 20, 2023 · Hysteresis loop is present in many real-life systems, from simple mechanical devices to complex biological and social systems. Jun 19, 2023 · The influence of compressed air and rubber airbag deformation on the stiffness of an air spring was discussed in this paper by combining theory, FEA, and experiment. Born placed a 7 inch rubber band on a Vernier Dual-Range Force Sensor, with a Motion Detector placed on the floor below the rubber band. A graph of load vs. The document summarizes an experiment to analyze the stretching of a rubber band specimen and investigate Hooke's law. Additionally, when a rubber band is stretched, it heats up. txt) or read online for free. Based on the experimental data of storage and Nov 1, 2007 · Download Citation | Hysteresis in rubbers and its influence on strength | The most important dissipative mechanisms contributing to hysteresis when a rubber is stretched to breaking point are Materials Box of large rubber bands Procedure Hand out rubber bands to the class. Better predictions outside the hyperelastic range are obtained by directly In the characteristic curve of the rubber band, part OA (gradual increase of stress) does not coincide with part AB (gradual relief of stress), which is contrary to what is observed for the helical spring, as long as it remains within the limit of elasticity. The students should not play with the rubber bands in advance of the experiment by stretching them with their hands and fingers. Explore Hooke's Law with a rubber band experiment. Figure 1 - Hysteresis and Rubber Band Lab Setup PocketLab Voyager’s rangefinder provides a perfect way to record the stretch of the rubber band. Equipment and supplies needed A supply of various sizes of rubber bands Rubber Band Hysteresis Lab Report - Free download as PDF File (. Release the tension on the rubber band and touch it to their upper lip, the rubber band will feel cooler. Hang a rubber band or length of elastic vertically and attach weights to the lower end. Download scientific diagram | The effects of temperature and rate on the hysteresis of rubber. Bruce Denardo, Richard Masada; Rubber hysteresis experiment, The Physics Teacher, Volume 28, Issue 7, 1 October 1990, Pages 489–491, https://doi. Purpose: To describe the stretching action of rubber bands, and explore the connection between Hooke’s Law and Young’s modulus. When a rubber band is stretched, it stores energy in the form of elastic Dec 16, 2025 · When a rubber band is stretched and released, its stress-strain curve exhibits hysteresis. However, you cannot use the formula 1/2Fx to calculate this as this is the area of a triangle, where the area underneath the hysteresis loop of the rubber band is not a triangle. On such educational simulation and accompanying materials can be found at https://www Feb 6, 2019 · A clear advantage of using rubber bands to study hysteresis is that virtually everyone is familiar with them, making hysteresis less abstract than that with ferromagnetic materials. A typical bungee has a core of long filaments of rubber surrounded by a woven jacket of polyester or similar fibers. The graphs obtained resemble graph “rubber band A” at first. This experiment takes a very common household item, the rubber band, and applies physical laws (Hooke’s Law and the Young’s Modulus) to them in a hands-on way. Jul 12, 2022 · The rubber band experiment demonstrates entropic force and a refrigeration cycle using a simple rubber band.

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