Method for analyzing local stress of transition area of inner fillet of structural member

• Main Authors: QIN JIANBING, XUE HAN, CHI FUJIAN, MIAO ZHITAO, LUO PENGFEI
• Format: Patent
• Language: Chinese; English
• Published: 27.08.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a method for analyzing local stress of an inner fillet transition area of a structural part, which comprises the following steps of: modeling and calculating by adopting finite element analysis software to obtain a local stress value sigma0, i of the inner fillet transition area of the structural part in a fillet-free state; establishing a plurality of typical finite element models of the inner fillet transition area of the structural member; calculating each typical finite element model to respectively obtain a local stress value sigma1, 0 of the inner fillet transition area of the structural member in a fillet-free state and a local stress value sigma1, i of the inner fillet transition area in a state of different fillet radiuses, calculating a corresponding stress correction coefficient k1, i, and fitting a curve of the stress correction coefficient k changing along with the radius R of the fillet transition area, giving a curve expression; the actual radius R0, i of the transition