The Poisson’s ratio of a composite material can be determined from a tensile test. For a composite material, it is necessary to perform it in two (2) directions and to use strain gauges to measure the deformation in the direction parallel and perpendicular to the direction of the test. This test is described in ASTM D3039 standard. Typically both ASTM D638 and D3039 specimens can be used to do the tests.

ASTM D638, ISO 527 as well as ASTM D3039 establish the test conditions for tensile testing of polymers, thermoplastics, and fiber-reinforced plastics.
Advanses Laboratory can accurately provide you with the material data and results required to fully characterize your polymeric, thermoplastic and composite materials for accurate, and reliable mateial/product development and FEA simulations.
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