Research Article
A Bursting Liability Evaluation Method Based on Energy Transfer
Table 2
Results of bursting energy index test.
| | Specimen | Bursting energy index KE | Uniaxial compressive strength RC (MPa) | Peak strain (%) | Stress-strain curve characteristics | Prepeak curve features | Postpeak curve features | Prepeak deformation energy US (J) | Postpeak deformation dissipated energy UX (J) |
| | M2-1 | 9.929 | 15.340 | 1.018 | 2 | Multiple stress drop | — | 16.403 | 1.652 | | M2-2 | 9.971 | 56.300 | 2.505 | 4 | — | One data point | 122.432 | 12.280 | | M2-3 | 24.974 | 24.170 | 1.626 | 4 | — | Few data point | 32.712 | 1.310 | | M2-4 | 5.577 | 18.330 | 1.636 | 2&3 | Multiple stress drop | Failures after softening | 28.971 | 5.195 | | M2-5 | 34.704 | 21.650 | 1.034 | 2&3 | Once stress drop | Softening | 21.233 | 0.612 | | M3-1-1 | 4.714 | 13.092 | 0.653 | 5 | — | Fluctuating | 8.361 | 1.773 | | M3-1-2 | 3.757 | 11.737 | 1.047 | 2 | Fluctuating | — | 14.681 | 3.907 | | M3-1-3 | 2.204 | 18.530 | 1.255 | 3 | — | Multiple rebound | 21.239 | 9.637 | | M3-1-4 | 2.205 | 16.600 | 0.819 | 2 | Multiple stress drop | — | 14.294 | 6.483 | | M3-1-5 | 3.060 | 20.300 | 1.014 | 2&3 | Multiple stress drop | Multiple rebound | 22.225 | 7.263 | | M3-2-1 | 3.245 | 23.610 | 1.027 | 4 | — | Softening | 23.073 | 7.110 | | M3-2-2 | 1.399 | 10.866 | 0.986 | 2&3 | Fluctuating | Fluctuating | 14.249 | 10.183 | | M3-2-3 | 3.935 | 23.783 | 1.107 | 3 | — | Fluctuating | 25.158 | 6.393 | | M3-2-4 | 4.627 | 27.557 | 1.697 | 3 | — | Fluctuating | 41.491 | 8.967 | | M3-2-5 | 6.846 | 26.856 | 1.186 | 1 | — | — | 29.582 | 4.322 | | M4-3-1 | 2.082 | 8.353 | 0.481 | 3 | — | Fluctuating | 4.276 | 2.054 | | M4-3-2 | 2.286 | 11.302 | 0.729 | 3 | — | Softening | 8.447 | 3.695 | | M4-3-3 | 2.559 | 16.254 | 0.798 | 3 | — | Fluctuating | 12.437 | 4.862 | | M4-3-4 | 3.197 | 26.275 | 0.716 | 3 | — | Fluctuating | 18.522 | 5.794 | | M4-3-5 | 1.119 | 12.306 | 1.027 | 1 | — | — | 12.749 | 11.388 | | M6-1 | 6.044 | 19.530 | 0.952 | 1 | — | — | 16.963 | 2.806 | | M6-2 | 8.213 | 18.970 | 0.922 | 1 | — | — | 17.683 | 2.154 | | M6-3 | — | 16.720 | 0.523 | 5 | — | Strain rebound | 7.897 | 0.010 | | M6-4 | 42.119 | 22.370 | 1.035 | 4 | — | Sudden drop | 20.167 | 0.479 | | M6-5 | 95.270 | 20.550 | 0.940 | 4 | — | Sudden drop | 19.060 | 0.200 | | Y1-1 | 5.127 | 16.030 | 1.111 | 2&3&4 | Fluctuating | Sudden drop, fluctuating, and sudden drop | 21.153 | 4.125 | | Y1-2 | 1.008 | 7.870 | 0.554 | 1 | — | — | 5.474 | 5.433 | | Y1-3 | 2.690 | 17.040 | 0.852 | 4 | — | Sudden drop | 14.846 | 5.521 | | Y1-4 | 3.708 | 19.910 | 1.029 | 4 | — | Sudden drop | 20.554 | 5.543 | | Y1-5 | 2.472 | 15.860 | 0.819 | 4 | — | Sudden drop | 11.973 | 4.848 | | Y21-1 | 4.786 | 13.630 | 0.693 | 2&3&4 | Rebounds once | Sudden drop, rebounding once, and sudden drop | 11.135 | 2.327 | | Y21-2 | 2.656 | 27.200 | 1.326 | 4 | — | Sudden drop, softening, and sudden drop | 34.212 | 12.882 | | Y21-3 | 1.923 | 13.990 | 0.671 | 3&4 | — | Rebound once and sudden drop | 9.876 | 5.135 | | Y21-4 | 118.230 | 37.680 | 1.863 | 4 | — | Sudden drop | 64.363 | 0.544 | | Y21-5 | 13.432 | 18.820 | 1.038 | 2&3&4 | Rebounding once | Sudden drop, rebounding once, and sudden drop | 21.616 | 1.610 | | Y22-1 | 2.150 | 17.180 | 0.833 | 2&3&4 | Rebounding once | Sudden drop and sudden drop | 14.051 | 6.536 | | Y22-2 | 8.194 | 15.090 | 0.932 | 4 | — | Sudden drop | 16.085 | 1.962 | | Y22-3 | 3.829 | 15.980 | 0.853 | 4 | — | Sudden drop | 14.506 | 3.788 | | Y22-4 | 4.363 | 16.420 | 1.020 | 3&4 | — | Sudden drop | 18.744 | 4.267 | | Y22-5 | 2.132 | 16.990 | 0.939 | 2&3 | Fluctuating | Fluctuating | 18.396 | 8.626 | | Y23-1 | 9.435 | 34.680 | 1.838 | 4 | — | Sudden drop | 60.811 | 6.446 | | Y23-2 | 51.796 | 38.100 | 1.869 | 4 | — | Sudden drop | 69.135 | 1.335 | | Y23-3 | 1.785 | 13.480 | 0.997 | 1 | — | — | 14.930 | 8.363 | | Y23-4 | 15.477 | 18.690 | 0.982 | 4 | — | Sudden drop | 19.156 | 1.237 | | Y23-5 | 4.546 | 15.030 | 0.862 | 4 | — | Sudden drop | 12.551 | 2.761 | | Y14-1 | 6.325 | 25.880 | 1.088 | 4 | — | Sudden drop | 28.319 | 4.477 | | Y14-2 | 3.648 | 16.060 | 0.736 | 4 | — | Sudden drop | 13.843 | 3.793 | | Y14-3 | 2.996 | 20.810 | 0.997 | 4 | — | Sudden drop | 20.246 | 6.758 | | Y14-4 | 1.941 | 19.300 | 0.750 | 4 | — | Sudden drop | 14.789 | 7.618 | | Y14-5 | 40.829 | 35.180 | 1.719 | 4 | — | Sudden drop | 60.340 | 1.479 | | Y14-6 | 1.438 | 14.230 | 0.743 | 2&3 | Fluctuating | Strain rebound | 11.210 | 7.795 | | Y15-1 | 7.131 | 19.660 | 0.955 | 4 | — | Sudden drop | 18.262 | 2.560 | | Y15-2 | 1.730 | 13.620 | 0.686 | 3 | — | Multiple rebound | 9.839 | 5.688 | | Y15-3 | 6.617 | 13.100 | 1.036 | 4 | — | Sudden drop | 15.184 | 2.295 | | Y15-4 | 2.379 | 13.050 | 0.721 | 4 | — | Sudden drop | 10.139 | 4.263 | | Y15-5 | 1.509 | 13.960 | 0.860 | 1 | — | — | 12.362 | 8.192 | | Z21-1 | 4.946 | 16.010 | 0.896 | 1 | — | — | 13.631 | 2.757 | | Z21-2 | 3.880 | 13.740 | 0.717 | 3 | — | Fluctuating | 10.291 | 2.653 | | Z21-3 | 7.797 | 21.090 | 0.792 | 4 | — | Sudden drop | 17.436 | 2.236 | | Z21-4 | 4.437 | 21.050 | 0.745 | 4 | — | Sudden drop | 15.274 | 3.442 | | Z21-5 | 5.630 | 19.850 | 0.730 | 2&4 | Fluctuating | Sudden drop | 15.086 | 2.680 | | Z22-1 | 2.042 | 12.940 | 0.659 | 4 | — | Sudden drop | 9.468 | 4.636 | | Z22-2 | 0.764 | 10.080 | 0.413 | 3 | — | Fluctuating | 4.494 | 5.887 | | Z22-3 | 1.330 | 10.770 | 0.439 | 3 | — | Fluctuating | 5.150 | 3.874 | | Z22-4 | 8.202 | 20.670 | 0.900 | 4 | — | Sudden drop | 18.162 | 2.215 | | Z22-5 | 8.038 | 16.950 | 0.899 | 4 | — | Sudden drop | 16.432 | 2.044 | | Z23-1 | 1.734 | 10.880 | 0.518 | 2&3 | Fluctuating | Fluctuating | 6.344 | 3.660 | | Z23-2 | 7.385 | 19.090 | 0.924 | 4 | — | Sudden drop | 19.291 | 2.611 | | Z23-3 | 2.412 | 14.030 | 0.652 | 4 | — | Sudden drop | 10.403 | 4.314 | | Z23-4 | 1.941 | 12.710 | 0.776 | 2&3 | Fluctuating | Fluctuating | 11.667 | 6.012 | | Z23-5 | 2.390 | 18.730 | 0.857 | 2&4 | Sudden drop | Fluctuating and sudden drop | 16.067 | 6.723 | | Z6-1 | 4.687 | 15.170 | 0.755 | 4 | — | Sudden drop | 12.172 | 2.598 | | Z6-2 | 2.992 | 16.380 | 0.753 | 4 | — | Sudden drop | 13.171 | 4.402 | | Z6-3 | 0.885 | 13.800 | 0.591 | 2 | Fluctuating | — | 8.873 | 10.026 | | Z6-4 | 1.383 | 13.660 | 0.660 | 3 | — | Fluctuating | 9.749 | 7.051 | | Z6-5 | — | 20.920 | 0.898 | 5 | — | Strain rebound | 19.651 | 0.000 | | Z7-1 | 1.983 | 8.770 | 0.994 | 2&3 | Fluctuating | Fluctuating | 11.215 | 5.655 | | Z7-2 | 4.584 | 15.860 | 0.801 | 4 | — | Sudden drop | 12.784 | 2.788 | | Z7-3 | 2.720 | 15.620 | 0.779 | 2&3 | Fluctuating | Fluctuating | 14.669 | 5.394 | | Z7-4 | 2.373 | 27.910 | 1.504 | 4 | — | Sudden drop | 39.796 | 16.770 | | Z7-5 | 1.923 | 12.030 | 0.492 | 4 | — | Sudden drop | 5.604 | 2.914 |
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