Anti Buckling and Support Jig to ASTM D 695 / D 3846
S4931A | Anti-Buckling Support Jig to ASTM D695-10 / D3846-08
Locates between compression platens either directly or mounted on CP114249 Base Support.
Upper Interface: Requires compression platen diameter 100 mm (4 in) or larger. Lockable spherical seat recommended to ensure parallelism.
Lower Interface: Requires fixed compression platen diameter 100 mm (4in) or larger. Platens not included. Compatible with CP114249 Base Support and S4678A (not included).
Max. Load : 100 kN (10,000 kgf, 22,000 lbf)
Temperature range : -100 to +350 °C (-148 to +662 °F).
|Accessory Height||73 mm (2.9 in)|
|Accessory Weight||1 kg (2.2 lb)|
|Accessory Width||37 mm (1.4 in)|
|Capacity||100 kN (20000 lbf)|
|Lower Fitting||Requires platen 75 mm (3 in) or larger|
|Temperature Rating||-100 to +350°C (-148 to +662°F)|
|Testing Standards||ASTM D 695 / D 3846|
|Upper Fitting||Requires platen 75 mm (3 in) or larger|
The anti-buckling fixture was originally designed for rigid plastics per ASTM D 695, reinforced plastics per ASTM D 3846. It was also extended and used for high-modulus composites. Boeing then adapted the fixture so that it would be self supported between two platens to ensure consistent perpendicularity of the fixture. The SACMA standard followed the Boeing design with an added alternative support fixture with a cutout, which would allow bonded strain gages to be used at the center of the specimen for a more precise strain measurement.
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