This test method applies to the evaluation of effects of elevated temperature and moisture on pultruded fiber reinforced polymer composites and conditioning of the test samples to simulate that environment. The conditioning medium representing elevated temperature and moisture exposure is distilled water maintained at 37.8C 1.5C (100F 3F) for 1000 hours. Tensile testing is to be performed on both conditioned and non-conditioned samples so that the percent retention of the characteristic value of this property may be determined. Tensile modulus of elasticity may also be reported. Other mechanical property tests may also be performed on conditioned samples as desired.
There is not a standard to determine the characteristic value of the tensile strength of thermoset pultruded composites following 1000 hour immersion in 38C water. The pultrusion industry requires a standardized method to respond to customer questions, to permit the customers of pultruded composites to be able to adequately compare the different suppliers, and to provide required data for design.
Keywords13.1Pultruded composites; pultrusion; immersion conditioning; characteristic value
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top