Browse validated testing configurations. Filter by regulatory standard, material type, or force requirements.
60 items found
The active gauge area must be polished longitudinally to a mirror finish (down to 0.2-micron roughness) to eliminate circumferential machining…
Grind the chisel edge to the exact specified angle and sharpen regularly to maintain uniform shear force application.
Clean and prime the substrate blocks precisely according to the manufacturer’s spec to isolate true sealant engineering limits.
Always insert spacer shims equal to the coupon thickness into the grips to guarantee a perfectly straight axial line of…
For woven fabrics, cut the specimen over-sized and ravel exactly down to the target 25mm or 50mm width to secure…
Draw a straight reference line parallel to the front edge of the specimen to verify perfectly perpendicular alignment inside the…
Always bond back-to-back strain gauges on every specimen to actively compute and document real-time out-of-plane bending percentages.
Cut the foam blocks with a precision bandsaw or hot-wire setup to ensure the loading faces are perfectly flat and…
Always verify that the upper spherically seated platen is unlocked and free to float during alignment, then locked or allowed…
Always place the specified elastomer pads between the anvils and the panel to spread out high localized line loads.
Always insert thickness-matching spacers into the grip jaws behind the specimen tabs to keep the bond line perfectly collinear with…
Grind the loaded ends of the sandwich panel flat and perpendicular to the facings within 0.02mm to eliminate edge stress…
Always use a direct-contact deflectometer setup to measure core deflection; crosshead travel includes platen-seating errors.
Cure the bonded block assembly under a uniform dead-weight load to ensure a perfectly flat, parallel adhesive layer.
Note that ASTM D7264 dictates a 32:1 span-to-thickness ratio, which is twice the 16:1 ratio specified by the plastics standard…
Ensure the support span is measured with a digital caliper and locked to exactly 16 times the measured thickness of…
Set the support span precisely to standard depth configurations and verify loading noses are perfectly aligned at the third or…
Ensure the support and loading rollers are free to rotate and articulate to completely eliminate parasitic twist stresses.
You must gather both longitudinal and transverse strain simultaneously; in-plane shear strain equals axial strain minus transverse strain.
Verify that the machined notches pass exactly halfway through the specimen thickness to isolate a clean, center-plane shear field.
