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    • 2. 发明申请
    • Fracture Prediction Device For Spot Welded Portion, Method Of The Same, Computer Program, And Computer Readable Recording Medium
    • 点焊部分断裂预测装置,方法,计算机程序和计算机可读记录介质
    • US20070199924A1
    • 2007-08-30
    • US10599921
    • 2005-04-12
    • Hiroshi YoshidaNaruhiko NomuraAkihiro Uenishi
    • Hiroshi YoshidaNaruhiko NomuraAkihiro Uenishi
    • B23K11/25
    • G01N3/24B23K11/11G01N3/08G01N2203/0067G01N2203/0214G01N2203/0216G01N2203/0218G01N2203/0296G06F17/5018
    • According to exemplary embodiments of the present invention, a fracture prediction device for a spot welded portion can be provided. For example, the device may include an input arrangement configured to input all or some of a material strength, a plate thickness, a nugget diameter of a spot welding, a plate width of a joint, and a rotation angle of the joint in a tension test, based on a cross tension test and/or a shear tension test at a spot welded joint. The device can also include a first calculation arrangement configured to calculate a fracture strength parameter of the spot welded portion from all or any of the material strength, the plate thickness, the nugget diameter of the spot welding, the plate width of the joint, and the rotation angle of the joint in the tension test. A parameter storage arrangement may also be provided which can be configured to store the fracture strength parameter by each steel type. Further, the device may further have a second calculation arrangement configured to determine a fracture of the spot welded portion by installing the fracture strength parameter stored in the parameter storage arrangement into a fracture prediction formula in which a deformation at a periphery of the spot welding is modeled by a finite element procedure. Exemplary embodiments of the method software arrangement and computer accessible medium performing similar procedures can also be provided.
    • 根据本发明的示例性实施例,可以提供一种用于点焊部分的断裂预测装置。 例如,设备可以包括输入装置,其被配置为输入材料强度,板厚度,点焊的熔核直径,接头的板宽度和接头处于张力的旋转角度的全部或一些 基于交叉拉伸试验和/或点焊接头处的剪切张力试验进行试验。 该装置还可以包括第一计算装置,其被配置为根据材料强度,板厚度,点焊的熔核直径,接头的板宽度以及所述点焊的直径来计算点焊部的断裂强度参数 接头在张力试验中的旋转角度。 还可以提供参数存储装置,其可被配置为通过每种钢种来存储断裂强度参数。 此外,该装置还可以具有第二计算装置,其被配置为通过将存储在参数存储装置中的断裂强度参数设置为断点预测公式来确定点焊部分的断裂,其中点焊周边的变形为 由有限元程序建模。 还可以提供方法软件配置和执行类似过程的计算机可访问介质的示例性实施例。