1.13.5 Plate response to a planar exponentially decaying shock wave

Product: ABAQUS/Explicit  

When an underwater explosion occurs, a compressive wave is generated. This wave can have a substantial effect on a submerged structure. Simulating the response of submerged structures of simple geometric shapes to simple explosion wavefront types constitutes an important part of the validation of any fluid-structure interaction code. In this example the ability of ABAQUS/Explicit to model the interaction between an air-backed elastic plate and a planar exponentially decaying wave is illustrated. The results obtained using ABAQUS/Explicit are compared with those obtained independently using the Doubly Asymptotic Approximation (Geers (1978), ABAQUS/USA Version 6.1). This problem has been solved analytically by Taylor (1950).

Problem description

Results and discussion

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Figure

Figure 1.13.5–1 Comparison of the translational velocity of the plate obtained with the Doubly Asymptotic Approximation method and with ABAQUS/Explicit.