Method for predicting total distribution of residual stress of thick aluminum alloy plate

• Main Authors: LI YANAN, LI XIWU, WEN KAI, LI ZHIHUI, GAO GUANJUN, ZHANG YONG'AN, XIONG BAIQING, YAN HONGWEI, YAN LIZHEN, YU MINGYANG, XIAO WEI, LI YING, ZHU KAI, SHI GUOHUI
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses a residual stress total distribution prediction method for an aluminum alloy thick plate, which realizes residual stress total distribution prediction of the thick plate by constructing a typical section residual stress total distribution prediction model based on key information such as surface residual stress distribution level and uniformity, thickness stress distribution line type and the like. Input information needed by the aluminum alloy thick plate residual stress total distribution prediction method comprises surface residual stress distribution and uniformity results and thickness-direction residual stress distribution line types, the surface residual stress distribution can be obtained through surface residual stress testing methods such as an X-ray diffraction method, and the thickness-direction residual stress distribution line types can be obtained through internal stress testing methods such as a delamination method. The information acquisition method is simple and is co