ASTM D2290 Standard Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe

Get Certified ASTM D2290 Testing for Reliable Apparent Hoop Tensile Strength Evaluation.

ASTM D2290 testing can be used to determine the apparent hoop tensile strength of plastic pipe and reinforced plastic pipe. Therefore, engineers can assess pipe performance under tensile loading applied around the pipe’s circumference. A prepared ring or ring segment is subjected to a controlled loading until yield or rupture occurs. This information is used to compare pipe materials, assess product quality, support engineering design, and inform acceptance decisions.

• Material: Plastic, reinforced-thermosetting resin, and thermoplastic pipe products.
• Test method: Apparent tensile strength testing using split-disk or ring-segment fixtures.
• Procedure A: Testing of reinforced-thermosetting resin pipe.
• Procedure B: Testing of thermoplastic pipe of any size.
• Procedure C: Testing of thermoplastic pipe with a nominal diameter of 4.5 inches (110 mm) and greater.
• Procedure D: Testing of polyethylene pipe with a nominal diameter of 14 inches (350 mm) and greater and preferably a wall thickness of 1 inch (25 mm) or greater.
• Procedure E: Testing of PVC pipe with a nominal diameter of 14 inches (350 mm) and greater and a wall thickness of 0.5 inches (12.7 mm) or greater.
• Reporting basis: Inch-pound units are regarded as the standard units for the test method.

What are the Uses of ASTM D2290 Testing?

ASTM D2290 testing is the method employed to determine the apparent hoop tensile strength of plastic and reinforced plastic pipe. Therefore, the manufacturer and engineer can compare the performance of the pipe under controlled tensile loading. The method is also suitable for research and development, engineering design, quality control, and acceptance/rejection in accordance with the applicable specifications. In accordance with the ASTM D2290 standard-

• Measures the apparent hoop tensile strength.
• Tests the strength of the plastic pipe when pulled.
• Enables comparisons between various pipe materials and products.
• Helps with research and development work.
• Helps with engineering design.
• Supports quality-control evaluations.
• Supplies information for acceptance testing based on specifications.
• Assists in the assessment of pipe performance under specified test conditions.

Which materials can be tested under ASTM D2290?

ASTM D2290 is for reinforced thermosetting resin pipe and extruded or molded thermoplastic pipe. The standard contains the procedures for thermoplastic pipe of various sizes and specific procedures for polyethylene and PVC pipe. The method can thus be used to compare, in controlled conditions, the apparent tensile properties of pipe products that are applicable.

Why is ASTM D2290 Important?

ASTM D2290 is important because apparent hoop tensile strength is an indicator of the tensile properties of plastic pipe loaded in the hoop direction. The method provides standardized procedures with split-disk or ring-segment fixtures. Consequently, engineers can gain similar information for research, product development, quality control, engineering design, and acceptance.

ASTM D2290 Testing Process and Data Collection

The pipe specimen is first prepared following the appropriate procedure, and the desired width and thickness are measured. The specimen is then placed on the split-disk or ring-segment fixture and oriented to the testing machine. The machine applies tensile force to the specimen until it yields or ruptures in order to obtain these loading values. The load and dimensional data are then used to calculate the apparent hoop tensile strength. Finally, the apparent tensile strength, the specimen details, and the test conditions are recorded by the engineers.

Common Challenges and Troubleshooting

Accurate specimen measurement, preparation, and fixture alignment are essential to accurate ASTM D2290 results. Therefore, the technicians must not damage the specimen or create irregularities in the prepared sections that would lead to premature failure. Operators should also check testing-machine speed and ensure that the necessary conditioning conditions are maintained. Lastly, analysts should check the failure location and load data for any unusual or invalid results.

• The laboratory notes the yield or ultimate load that was carried by the specimen during the tensile test, whichever is applicable.
• The analyst uses measurements of width and thickness of the specimen to determine apparent tensile strength.
• The laboratory will report apparent tensile strength using the applicable inch-pound units, and the unit of stress results is usually expressed in psi.
• Engineers compare apparent tensile strength results among pipe materials or products tested under equivalent conditions.
• Analysts use the resulting data to support product development, engineering design, quality control, and specification-based acceptance decisions.

Link to ASTM D2290