Description
The sample is placed on two supporting pins a set distance apart and two loading pins placed at an equal distance around the center. These two loadings are lowered from above at a constant rate until sample failure.
Specification
Standard
ASTM C1161: Standard Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature
ASTM D6272: Standard Test Method for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials by Four-Point Bending
ASTM C393: Standard Test Method for Core Shear Properties of Sandwich Constructions by Beam Flexure
ASTM D7249: Standard Test Method for Facing Properties of Sandwich Constructions by Long Beam Flexure
ASTM D7250: Standard Practice for Determining Sandwich Beam Flexural and Shear Stiffness