Test MethodDetermining the response of glass filled nylon under elevated rate multiaxial loading

A facility has been developed capable of high strain rate material characterization in multiaxial flexure. Using this novel equipment, a formulation of a glass filled nylon composite (Ultramid B3WG6 BGVW) has been tested in biaxial flexure at a variety of strain rates. For the material tested, the flexural modulus was shown to have no significant dependence on the rate of application of load. The measured modulus was found to be ≈3.9GPa over a range of 10-3-4.0s-1. A FE model was created and found to have an excellent correlation over the entire range of strain rate. The capabilities and limitations of the experimental facility are discussed.