ASTM C 394 (C-394) determines the effect of repeated shear loads on sandwich core materials. These test methods provide a standard method of obtaining the sandwich core shear fatigue properties. Usually the most critical stress to which a sandwich panel core is subjected is shear. The effect of repeated shear stresses on the core material can be very important. ASTM C394 uses the same test fixture as the present ASTM C273 standard. However, the core material is to be tested without face sheets. That is, the core is bonded directly to the bonding plates.
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Recommended Test Machine
Forces up to 5 kN (1,125 lbf)
Low force tabletop systems
Tests at speeds up to 2,500 mm/min (100 in/min)
Best for high travel or high elongation test requirements
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Recommended Testing Accessories
Designed in accordance to ASTM C273
