The shock and release behavior of an aerospace‐grade cured aromatic amine epoxy resin

Abstract

Knowing the dynamic behaviour of polymer materials that are used in the construction of fibre reinforced composite materials is particularly important for such materials that are subjected to impact. In this work, we have conducted a number of plate impact experiments on a commercially important aromatic amine epoxy resin that is used in the construction of carbon fibre composite materials. The measured Hugoniot in shock velocity-particle velocity space is U s = 2.65 + 1.55u p (ρ 0 = 1.141 g/cc) and is similar to the measured Hugoniots of other resins presented by different researchers. We have also measured the longitudinal stress in the shocked material and shown, in common with other polymers, that above a threshold stress, an increase in shear stress behind the shock wave is observed.

Penetration of a woven CFRP laminate by a high velocity steel sphere impacting at velocities of up to 1875m/s

“…The resin used was a Hexcel RTM6 epoxy system cured for 1 hour 40 minutes at 180 °C and at a pressure of 100 psi. The shock behaviour of this particular epoxy resin system has previously been reported in [11]. The has previously been reported in [4] and has been shown to be negligible.…”

On the behaviour of porcine skeletal muscle tissue under shock compression

“…1.63 mm/ms) [16,26]. This shows that, unlike polymers, which possess similar acoustic impedance to the porcine tissues tested here, there is no curvature of the Hugoniot at low particle velocities, e.g., [27,28]. Fig.…”

Experimental investigation of the shock response of bismuth under one-dimensional shock-loading

“…2(a) / following the approach detailed in Eqs. (1) and (2) for phases 1 and 2 respectively, allowing for material compression before phase 2 arrival [15]. An initial gauge separation of x was assumed, with the particle velocity of the initial phase defined as u p1 .…”