elliptic hole with a straight crack
elliptic hole with an edge-crack
elliptic hole with two straight cracks
a half plane with a hole
a pillar lens with a hole
Composite laminates with a hole
square plate with a hole
finite plate with a crack
the torsion of the cylinder with edge crack
A-A-A conjugation structure
a circular hole with two cracks
a hole in an implement or utensil for something to be inserted into