Standard Test Method for In-Plane Shear Properties of Sandwich Panels Using a Picture Frame Fixture

Importancia y uso:

5.1 In-plane shear loading tests on flat sandwich constructions may be conducted to determine the sandwich panel in-plane shear stiffness, the face sheets’ in-plane strength, the core shear instability strength, or panel buckling response.

5.2 This test method can be used to produce face sheet strength data for structural design allowables, material specifications, and research and development applications; it may also be used as a quality control test for bonded sandwich panels.

5.3 Factors that influence the panel strength and shall therefore be reported include the following: face sheet material, core material, adhesive material, methods of material fabrication, face sheet stacking sequence and overall thickness, core geometry (cell size), core shear and compressive strength, core shear and compressive stiffness, adhesive thickness, specimen geometry, specimen preparation, specimen conditioning, environment of testing, specimen alignment, loading procedure, speed of testing, face sheet void content, adhesive void content, and face sheet volume percent reinforcement. Further, face sheet strength may be different between precured/bonded and co-cured face sheets of the same material.

Subcomité:

D30.09

Referida por:

D4762-23

Volúmen:

15.03

Número ICS:

83.120 (Reinforced plastics)

Palabras clave:

face sheet modulus; face sheet strength; face sheet stress; sandwich construction; shear stiffness; shear stress;