Parallel Plate Testing and Simulation of Corrugated Plastic Pipes According to Iso 9969 & En 1446
Parallel Plate Testing and Simulation of Corrugated Plastic Pipes According to ISO 9969 & EN 1446
Dr. Abdul Monaim Jesry, Eng. Yaser Alewe
Syria-Aleppo city (Aleppo university) - Email:yaseralewe@gmail.com
Abstract: The parallel plate test (ISO 9969 & EN 1446) is a standardized test for insuring that the ring stiffness and flexibility of thermoplastic pipe meets specified levels of performance. Traditional calculation of ring stiffness depend on study of the elasticity of the material and neglect the role of its plasticity and viscosity. Nowadays scientific revolution in engineering programs and finite element analysis was helpful in complex studies and we could use it in simulation of real world conditions and optimize the profile shape which achieve decrease in cost of experiments and manufacturing. This work presents the results of a series of parallel plate tests and finite element simulations those tests conducted on corrugated HDPE plastic pipe to investigate the role of material and geometry on the behavior of the pipe during the test. Specifically, the work considers parallel plate tests on 400 mm diameter pipe, and its finite element simulation. ISO 9969 & EN 1446 uses the test to assure that corrugated HDPE pipe has required minimum pipe stiffness at 3% deflection (i.e. 3% reduction in diameter), and no buckling or loss of load before 30% deflection. After a series of experiments and comparing between them and theoretical study we find a great correspondence.
Keywords: Corrugated ;Plastic; simulation; ISO 9969; EN1446.
1. Introduction
HDPE corrugated plastic pipes is classified by its ring stiffness into Sn4, Sn8, Sn16 and it is the value of external load per squared meter kN/m2 [1]. The parallel plate test (ISO 9969 & EN 1446) is a standardized test for insuring that the ring stiffness and flexibility of thermoplastic pipe meets specified levels of performance. ISO 9969 & EN 1446 uses the test to assure that corrugated HDPE pipe has
Dr. Abdul Monaim Jesry, Eng. Yaser Alewe
Syria-Aleppo city (Aleppo university) - Email:yaseralewe@gmail.com
Abstract: The parallel plate test (ISO 9969 & EN 1446) is a standardized test for insuring that the ring stiffness and flexibility of thermoplastic pipe meets specified levels of performance. Traditional calculation of ring stiffness depend on study of the elasticity of the material and neglect the role of its plasticity and viscosity. Nowadays scientific revolution in engineering programs and finite element analysis was helpful in complex studies and we could use it in simulation of real world conditions and optimize the profile shape which achieve decrease in cost of experiments and manufacturing. This work presents the results of a series of parallel plate tests and finite element simulations those tests conducted on corrugated HDPE plastic pipe to investigate the role of material and geometry on the behavior of the pipe during the test. Specifically, the work considers parallel plate tests on 400 mm diameter pipe, and its finite element simulation. ISO 9969 & EN 1446 uses the test to assure that corrugated HDPE pipe has required minimum pipe stiffness at 3% deflection (i.e. 3% reduction in diameter), and no buckling or loss of load before 30% deflection. After a series of experiments and comparing between them and theoretical study we find a great correspondence.
Keywords: Corrugated ;Plastic; simulation; ISO 9969; EN1446.
1. Introduction
HDPE corrugated plastic pipes is classified by its ring stiffness into Sn4, Sn8, Sn16 and it is the value of external load per squared meter kN/m2 [1]. The parallel plate test (ISO 9969 & EN 1446) is a standardized test for insuring that the ring stiffness and flexibility of thermoplastic pipe meets specified levels of performance. ISO 9969 & EN 1446 uses the test to assure that corrugated HDPE pipe has
References: 1- LARS-ERIC JANSON., -2003-"Plastics Pipes for Water Supply and Sewage Disposal" Borealis, 404. 2- (ISO 9969) Design Specifications. 3- ABAQUS Version 6.6.1. 1998- Hibbitt, Karlsson & Sorensen, Inc. Pawtucket, RI. 4- MOORE I.D.; ZHANG C., 1998- “Nonlinear Predictions for HDPE Pipe Response Under Parallel Plate Loading,” ASC. Journal of Transportation Engineering, 124(3), 286-292 5- SCHAFER B.W.; MCGRATH, T.J., 2003- “Buried Corrugated Thermoplastic Pipe: Simulation and Design” 2003 Transportation Research Board Annual Meeting, Washington D.C.