ASTM D2344 is a test method to determine the short-beam shear strength of high-modulus fiber-reinforced composite materials. Short-beam shear is used to determine interlaminar shear strength of parallel fibers. The data can be used for quality control and process specification purposes.

ASTM D2344

ASTM D2344 can be used for all types of parallel fiber reinforced plastics and composites, provided that the failures occur consistently in the same mode 5. Use a short beam specimen that is machined from a curved or a flat laminate up to 6.00 mm, equivalently 0.25 inch, thick.

Testing procedure

Measure the thickness and width of the test specimen before conditioning. Next, place the specimen on a horizontal shear test fixture so that the fibers are parallel to the loading nose. Then use the loading nose to flex the specimen at a speed of .05 inches per minute until rupture. Finally record the force and use the official standard calculations to determine shear strength.

ASTM D2344 requests a three-point bending system. This type of fixture can be placed on a universal testing machine. By means of our testing expertise and modular product design, we will help find the testing solution that is right for you. Give one of our application engineers a call today for help with creating the best budget and testing plan according to ASTM D2344.

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