Details:

Personal Author:
Wang, Richard C. ; Shapiro, D. E. (David E.)
Wang, Richard C. ; Shapiro, D. E. (David E.) Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"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 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. It 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." - NIOSHTIC-2

NIOSHTIC no. 20039148


Subject:
[+]
Wire Rope -- Fatigue -- Testing -- Equipment And Supplies.
Wire Rope -- Fatigue -- Testing.

Series:
Report of investigations (United States. Bureau of Mines) ; 9547
Document Type:
Report
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:225bc74074eca86b3481a3c32687f1ce8890b1ee5ec367af04dd807a42f1520f
File Type:

Supporting Files

• No Additional Files

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