-
منتجات
-
-
معيار
-
-
-
معلومات عنا
القياسية
Formulating Institution
American Society for Testing and Materials (ASTM)
For Building Components
Panels suitable for wood, metal, composite materials (such as plywood, OSB, gypsum board, metal-faced sandwich panels, etc.)
Testing Purpose
ASTM E72 focuses on testing the load-bearing capacity, stiffness, and failure modes of building materials or assemblies under controlled loads.
Record parameters (required to be recorded):
- Ultimate Load: The maximum load that the panel can withstand before damage (unit: kN/m², 9N/mm²).
- Deflection: Deformation under standard load (e.g., the panel is allowed to deflect ≤360 degrees).
- Failure modes: Cracking, shear slip, fastener failure, etc., used to improve design or material selection.
Testing Method
Testing types:
- Concentrated lateral load test: Simulate local pressure on panels or walls from furniture, equipment, etc.
- Uniform load test: Evaluate the overall load-bearing capacity of panels under wind, snow, or uniform live loads.
- Bending strength test: Assess the bearing capacity of panels when loaded at mid-span (e.g., the load-bearing performance of ceiling panels).
- Shear strength test: Analyze the deformation and damage capacity of materials under shear force (e.g., panels resisting lateral wind pressure).
Installation and testing:
- Fix the samples according to the actual application (e.g., ceiling panels are usually 1.2m×2.4m, designed according to the actual thickness of the panel) in the actual construction method.
- Install the test panel on the support structure to simulate actual boundary conditions (simply supported, fixed supported, etc.).
- Gradually apply loads (e.g., uniform loads through sandbags or air pressure, concentrated loads through hydraulic application).
- Record load-deformation curves until failure (cracking, bending or deformation exceeding the limit).
- Record the maximum load, stiffness, ultimate load (bearing capacity), and failure mode.