Measuring Young’s modulus with a tensile tester

Williams, Hollis

doi:10.1088/1361-6552/ac3f75

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…However, in many cases, voids moving to form larger cracks are unwanted. An illustrative example is that of the 1928 the 56 kilo-tonne White Star Liner Majestic was fitted with a lift installed for its passengers [10]. As part of the installation, engineers had to cut rectangular holes in the hull, but these cuts had an unwanted side effect, they introduced sharp corners.…”

Section: Why An Experiments On Fracture Toughness?mentioning

confidence: 99%

A total rip-off—crack propagation in paper

Bates,

Dean

2024

Phys. Educ.

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The explanation of material properties starts at a young age identifying materials using words such as strong or brittle, but it is not until higher education that we teach how and why materials break along with what brittle really means. It is an important concept to understand, as a material that could be thought strong can be made to appear weak with the addition of a very small crack. As force is applied, these cracks, introduced through dents, scratches or even from the manufacturing process, can rapidly grow, leading to catastrophic failure. To help educators explain this concept in class without the need for specialised equipment or teaching complex theory, we present a set of accessible experiments on the fracture strength of paper strips. We show how the complexity of the experiment can be modified for various age groups, ranging from an engaging session for younger students pulling paper strips to a more involved extended practical using analytical solutions and fitting to determine the fracture strength of paper. These experiments have been delivered successfully to students of various ages and have led to stimulating discussions on the subject of materials science and engineering.

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Section: Why An Experiments On Fracture Toughness?mentioning

confidence: 99%

A total rip-off—crack propagation in paper

Bates,

Dean

2024

Phys. Educ.

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“…Young's modulus is a fundamental concept in physics [1][2][3]. Teaching laboratory physics needs apparatus that allows students to perform actual experiments rather than reading.…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of an improvised Young’s Modulus Apparatus

Patero

2023

J. Phys.: Conf. Ser.

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In elasticity of matter, the behaviour of elastic materials are described in terms of elongation, external force applied to elastic materials, stress, strain, and elastic moduli such as Young’s modulus, Shear modulus, and Bulk modulus. Demonstration of this elastic modulus, particularly Young’s modulus in the classroom is a usual problem because acquiring an apparatus for this purpose is expensive. In this paper, improvised Young’s modulus apparatus is fabricated. The improvised Young’s modulus apparatus is tested using pure copper wire, and two other metallic wires of stainless steel and galvanized iron wires: the copper wire of diameter 0.42 mm has a Young’s modulus of 10.04 × 1010 N/m2 ± 6.783 N/m2 which is 8.7% than the known Young’s modulus of pure copper wire. On the other hand, the Young’s modulus of GI wire of diameter 0.555 mm and stainless steel wire of diameter 0.42 mm are 17.92 × 1010 N/m2 and 18.021 × 1010 N/m2, respectively. The improvised apparatus is functional and can be used for classroom experiments and demonstration.

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“…* Author to whom any correspondence should be addressed. The Young's modulus or the modulus of elasticity in tension is a mechanical property, and its determination generally appears in physics laboratories [7][8][9][10][11][12][13]. For simple tension or compression, the deforming force per unit area (called the stress) on the object is defined as F/A, where F is the magnitude of the external force applied perpendicularly to an area A on the object.…”

Section: Introductionmentioning

confidence: 99%

Young’s modulus determination for a vibrated metal ruler using Arduino

Phayphung¹,

Rakkapao²,

Prasitpong³

2022

Phys. Educ.

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The article introduces a low-cost Arduino sensor into the Young’s modulus determination laboratory for physics university students. A stainless steel ruler is used as a cantilever beam. Its free end attached a mass is slightly bent and released to make it oscillate as a simple harmonic motion. The Arduino sensor detects the moving mass’s frequency at different loaded forces. This technique shows an acceptable value of Young’s modulus for the used ruler.

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Measuring Young’s modulus with a tensile tester

Abstract: We use a tensile testing machine to create stress-strain plots and determine Young’s modulus for some ductile and plastic materials. Supplementary videos are also provided.

Cited by 6 publications

References 5 publications

A total rip-off—crack propagation in paper

A total rip-off—crack propagation in paper

Design and fabrication of an improvised Young’s Modulus Apparatus

Young’s modulus determination for a vibrated metal ruler using Arduino

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