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论压溃强度试验

王崇琳

王崇琳. 论压溃强度试验[J]. 粉末冶金技术, 1996, 14(3): 206-211.
引用本文: 王崇琳. 论压溃强度试验[J]. 粉末冶金技术, 1996, 14(3): 206-211.
Wang Chonglin. DISCUSSION ON RADIAL CRUSHING STRENGTH TESTING[J]. Powder Metallurgy Technology, 1996, 14(3): 206-211.
Citation: Wang Chonglin. DISCUSSION ON RADIAL CRUSHING STRENGTH TESTING[J]. Powder Metallurgy Technology, 1996, 14(3): 206-211.

论压溃强度试验

详细信息
    作者简介:

    王崇琳,中国科学院金属研究所副研究员。

DISCUSSION ON RADIAL CRUSHING STRENGTH TESTING

  • 摘要: 根据平面曲粱受力分析,推导出压溃强度试验时圆环内外表面的正应力。内表面拉应力导致试样破坏,其过程与弯曲试验相似,σ+/K值与圆环的几何尺寸R2/R1有关。当R2/R1≈0.87时,σ+/K值为1.0,即测得的压溃值K等于弯曲强度σbb,还提出用圆环压溃法测定弯曲强度的修正公式。
    Abstract: According to an analysis of planar camber beam under stress,the positive stress on the inner and outer surface of ring during its crushing strength testing has been deducted. The tension stress on the inner surface Caused damage to specimen with a process similar to that during bending testing and σ+/K value is rebated to the seometric size of the ring R2/R1. In case of R2/R1=0.87,the σ+/Kvalue equals to 1.0,i. e. the crushing value K obtained through testing equals to bending strength σbb. A modificed formula for bending strenth tested by ring crushing method has also been outlined.
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出版历程
  • 收稿日期:  1995-08-26
  • 网络出版日期:  2021-08-03

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