Nitinol wire bending study reveals stronger stress-strain curves in new shapes.
The bending behavior of Nitinol wire was studied in different bending setups. Results showed that bending stresses were higher than tension stresses. The bending data matched well with a modified plasticity theory for beams, especially in the linear elastic range and upper plateau stresses. However, differences were found in the lower plateau and springback strain, likely due to different types of deformation.