Final answer:
Previously undeformed cylindrical specimens can undergo different types of deformations such as tension, shear, bulk, torsion, or twisting, which can cause changes in their shape and arrangement.
Step-by-step explanation:
Previously undeformed cylindrical specimens can undergo different types of deformations, such as tension, shear, bulk, torsion, or twisting. These deformations can cause changes in the shape and arrangement of the specimens. For example, tension can elongate the specimen along its length, shear can cause the specimen to slide or deform sideways, and torsion can twist the specimen around its axis.