Ansys Maxwell Demagnetization ((link))

Go to Tools > Edit Configured Libraries > Materials . For your PM material (e.g., NdFeB35):

In Ansys Maxwell, demagnetization analysis is essential for evaluating the risk of permanent magnets losing their strength due to high temperatures, short circuits, or heavy loading. Irreversible demagnetization occurs when the operating point of a magnet falls below the "knee point" of its Demagnetization Analysis Procedure ansys maxwell demagnetization

ANSYS Maxwell offers two main approaches: Go to Tools > Edit Configured Libraries > Materials