Maximum Volume-to-Stress Ratio for a Two-Radii-Contour Diaphragm Pump

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Analytical methods were employed to determine the maximum volume-to- stress ratio for a two-radii-contour diaphragm pump. A proposed failure criterion considers the effect of biaxial stresses on fatigue failure through. the use of the Mises-Hencky criterion for fatigue failure. By use of the proposed criterion, it was determined that an optimunn ratio of the two radii does exist, its value being dependent on the ratio of diphragm thickness to diaphragm deflection. Values for the optimum ratio of the two radii (where the ratio of radii is defined as the radius of the central pcrtion of the diaphragm contour divided by … continued below

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16 p.

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Cheverton, R. D. February 15, 1960.

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Description

Analytical methods were employed to determine the maximum volume-to- stress ratio for a two-radii-contour diaphragm pump. A proposed failure criterion considers the effect of biaxial stresses on fatigue failure through. the use of the Mises-Hencky criterion for fatigue failure. By use of the proposed criterion, it was determined that an optimunn ratio of the two radii does exist, its value being dependent on the ratio of diphragm thickness to diaphragm deflection. Values for the optimum ratio of the two radii (where the ratio of radii is defined as the radius of the central pcrtion of the diaphragm contour divided by the radius of the outer pontion of the diaphragm) range from 1.94 to 7.33 as the ratio of diaphragm thickness to diaphragm deflection varies from 0.5 to 0.05, respectively. (auth)

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16 p.

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NTIS

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • February 15, 1960

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  • Sept. 21, 2016, 2:29 a.m.

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  • Oct. 12, 2017, 2:09 p.m.

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Cheverton, R. D. Maximum Volume-to-Stress Ratio for a Two-Radii-Contour Diaphragm Pump, report, February 15, 1960; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc877393/: accessed July 14, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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