“…Although the finite element version of IGA suffers from significant difficulties associated with generating volumetric parameterisations directly from CAD, coupling IGA with boundary element methods enables to perform computations directly from the CAD description of the boundary of the domain [3]. Applications include stress analysis [58,32,51], shape optimization [54,31,30], fracture mechanics [44,45,43,46], geomechanics [6,33,4,8,7,34,69,5], acoustics [59,27], and electromagnetics [13]. A detailed overview of the recent work in the field can be found in [39] and in [29].…”