159389.fig.004a
(a)
159389.fig.004b
(b)
159389.fig.004c
(c)
159389.fig.004d
(d)
Figure 4: Case  1: BEM, TBEM, MFS, and coupling formulations’ results: displacements at receiver ( 𝑅 1 ) and pressure at receiver ( 𝑅 2 ) when the system is excited by a blast load.