Sandwich Panel Flexure Testing
A noteworthy characteristic of the ASTM customary check configuration for facesheet properties determination is the 4-point loading span of one hundred mm/4 inches. For DC Motors Manufacturers flexure testing of solid laminates reasonably than sandwich panels (see "Flexure test strategies," beneath Editor's Picks"), the loading span is usually either 1/2 (termed quarter-point loading) or 1/3 (termed third-point loading) the size of the assist span. In contrast, the loading span for the sandwich panel lengthy-beam flexure take a look at technique mentioned here is barely 1/5.5 of the support span. That is, the two loading factors are considerably nearer collectively than for both quarter-point or third-point loading. Within the November article, I mentioned in detail some great benefits of transferring the loading points closer collectively when conducting any 4-level loading flexure take a look at, and the standard ASTM sandwich panel facesheet properties check configuration incorporates this favorable configuration.
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