Jiang Zhengyi, Jie Chunrong, Wang Guodong. UPPER LIMIT ANALYSIS OF WALL THICKNESS VARIATIONS IN PIPE SINKING DRAWING[J]. STEEL PIPE, 1992, 21(5): 1-4.
    Citation: Jiang Zhengyi, Jie Chunrong, Wang Guodong. UPPER LIMIT ANALYSIS OF WALL THICKNESS VARIATIONS IN PIPE SINKING DRAWING[J]. STEEL PIPE, 1992, 21(5): 1-4.

    UPPER LIMIT ANALYSIS OF WALL THICKNESS VARIATIONS IN PIPE SINKING DRAWING

    • Pipe sinking drawing is analysed using continuous speed field and the equations of wall thickness variations in sinking drawing established. By test, the variations calculated with the equations are in conformity with the actual values and can be used in engineering calculation.
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