hi,nThanks for the response.nThe material is non linear( ASTM A992 steel) with the minimum yield and tensile strengths of 345 MPa and 450 MPa, respectively. And test was done on W16 × 26 beam. The attached is the problem to be validated.nand '20.5F' was a typing mistake .The loading rate given was ''an actuator load was initially applied at a rate of 1.27 mm/min up to about 20.5 min and then at a rate of 0.25 mm/min until the specimen failed''. How is this type of loading applied practically in ansys workbench? nnn