Figure 1 shows the stress-number cycles to failure (S-N) curve for a cylindrical acetal polymer bar. The cylindrical bar is 200 mm long and 15 mm in diameter is subjected to a vibrational load at one end of the bar at a frequency of 500 vibrations per minute with a load of 50 N. 50 8 Stress amplitude (MPa) 30 20 10 104 106 Cycles to failure Figure 1: The S-N fatigue curve for an acetal polymer. 107 108 (i) Evaluate the duration (in hours) the part will survive before breaking?
Figure 1 shows the stress-number cycles to failure (S-N) curve for a cylindrical acetal polymer bar. The cylindrical bar is 200 mm long and 15 mm in diameter is subjected to a vibrational load at one end of the bar at a frequency of 500 vibrations per minute with a load of 50 N. 50 8 Stress amplitude (MPa) 30 20 10 104 106 Cycles to failure Figure 1: The S-N fatigue curve for an acetal polymer. 107 108 (i) Evaluate the duration (in hours) the part will survive before breaking?
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter3: Operational Amplifiers In Chemical Instrumentation
Section: Chapter Questions
Problem 3.7QAP
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