Bent beam material constitutive parameter model correction and discrimination method

• Main Authors: LIU RONGKAI, CHENG PENG, WU ZHENZHEN, ZHANG JIAQI, TANG SHENGHUA, LIU YUXIANG, QIN FUQIAN, KANG DINGDING, FANG JIEWEI
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a method for correcting and judging a constitutive parameter model of a bent beam material. The method comprises the following steps: selecting a proper material constitutive equation; selecting to-be-corrected parameters in the material constitutive equation, and determining a reasonable value interval of the to-be-corrected parameters; on the basis of plane section assumption, the height of a section compression area is solved through a section stress balance array axial force balance equation; judging whether linear correlation items exist in the axial force balance equation or not; the bending rigidity of the section is calculated according to a moment balance column bending moment balance equation, and when the height of a compression area of the section is a constant, the discriminant EIB is not equal to 0, and material constitutive parameter model correction can be carried out; when the height of the section compression area is not a constant, the judgment formula is related to