Page Comparison

Specimen is rectangular in cross-section

Length x Width x Depth - 200 mm x 75 mm x Thickness of Sandwich Construction

Make sure to test at least five specimens per test condition unless you are confident that the results obtained are valid through the use of fewer specimens.

Force versus crosshead displacement, force versus deflection data continuously, or at frequent intervals (around 2-3 recordings per second, with a target minimum of 100 recorded data points)

If there are any initial failures, record force, displacement and mode of damage where the failure occurs. 

Record mode, area and location of each failure. 

Use the failure identification codes, shown in the figure below.

Record the max force, failure force, head displacement and the deflection at the moment of ultimate failure. 

For ultimate failure modes, record the mode, area and location of ultimate failure for each material. 

Calculations:

• For 3-Point Mid-Span Loading:

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• For 4-Point, Quarter-point loading:

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• For 4-Point (Third Point) Loading:

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