3 pt. Flexural Fatigue S-N Curve


Test ID

M-509

Description

A flexural test bar is clamped in rotating supports at the two ends and the center point. The center loading point is then moved up and down to a specific stress level and frequency. Cycles are repeated until failure occurs or, in the case of ductile polymers, a specific strain level is achieved. The tests is repeated multiple times a many stress levels to produce an S-N failure curve.

Options

Fequency: 3-20 Hz Temperature: 23-150C Stress ratio: -1 to 0.9

Standards

  • ASTM D7774

Data

S-N Curves. This data appears in Matereality as Flexural Fatigue.

Replicates

Number of times this test is repeated: 3

Samples

50 flex bars [details]

Application

This test is used to capture the relationship between applied stress and fatigue life in a bending mode. This data can be used is certain CAE softwares or as a stand alone dataset.

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