• statistical analysis of b-value parameter under unconfined uniaxial compression testing

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1401/12/20
    • تاریخ انتشار در تی پی بین: 1401/12/20
    • تعداد بازدید: 198
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس ژورنال: 02166176087

    statistical analysis of b-value parameter under unconfined uniaxial compression testing

    in this paper, statistical analysis of the acoustic emission (ae) based b-value parameter has been carried out. in the initial phase, multi-linear regression was carried out on ae parameters released during the uniaxial compression of twelve cylindrical samples. the study exhibited that counts, rms values, and reciprocal of absolute energy are promising parameters to quantify the b-value. in a similar analysis, the ae behavior measured in terms of b-value was studied for standard cubes and cylinders.

    firstly, the two-way anova test was done on counts, rms values, and reciprocal of absolute energy, and a hypothesis was made that b-value measured in the said parameters would be the same. the results support the hypothesis and prove statistically that the three variables are the same no matter whether they are taken from cubic specimens or from cylindrical specimens, even though the cracking behavior of cubes and cylinders is different. the results are also verified by a one-tailed f-test.

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