Bending Fatigue Tests on Flattened Strand Wire Rope at High Working Loads

One of 419 reports in the series: Report of investigations (United States. Bureau of Mines) available on this site.

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Abstract: The U.S. Bureau of Mines established a wire rope research laboratory to examine the factors that affect the safety and the useful life of wire rope. In the most recent work, two 32-mm 6x27H flattened strand ropes were degraded on a bending fatigue machine. The two tests were run at constant loads of 285 and 347 kN or safety factors of 2.5 and 2. Nondestructive and tensile strength tests were performed on samples of the ropes to determine the relationship between rope deterioration and rope breaking strength. Neither the area loss nor the number of broken wires measured from ... continued below

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11 p. : ill., charts ; 28 cm.

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Wang, Richard C. & Shapiro, David E. 1995.

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Description

Abstract: The U.S. Bureau of Mines established a wire rope research laboratory to examine the factors that affect the safety and the useful life of wire rope. In the most recent work, two 32-mm 6x27H flattened strand ropes were degraded on a bending fatigue machine. The two tests were run at constant loads of 285 and 347 kN or safety factors of 2.5 and 2. Nondestructive and tensile strength tests were performed on samples of the ropes to determine the relationship between rope deterioration and rope breaking strength. Neither the area loss nor the number of broken wires measured from nondestructive tests could be used as clear indicators of the loss of strength. However, it was found from the tensile tests for both rope specimens that the strength loss was associated with the reduction of breaking strain. This suggests that measuring the strain of many short sections of a rope in the elastic region may locate the high stress sections and thus determine the condition of the rope.

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11 p. : ill., charts ; 28 cm.

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Digitized from microfiche (1).

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Technical Report Archive and Image Library

This selection of materials from the Technical Report Archive and Image Library (TRAIL) includes hard-to-find reports published by various government agencies. The technical publications contain reports, images, and technical descriptions of research performed for U.S. government agencies. Topics range from mining, desalination, and radiation to broader physics, biology, and chemistry studies. Some reports include maps, foldouts, blueprints, and other oversize materials.

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Creation Date

  • 1995

Added to The UNT Digital Library

  • Jan. 14, 2017, 10:15 p.m.

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  • Feb. 24, 2017, 1:04 p.m.

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Wang, Richard C. & Shapiro, David E. Bending Fatigue Tests on Flattened Strand Wire Rope at High Working Loads, report, 1995; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc304116/: accessed October 18, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.