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| An analytical expression of stiffness coefficient for one-dimensional random heterogeneous granular structure |
| Received:March 20, 2013 Revised:June 08, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201403008 |
| KeyWord:granular material structure random heterogeneous grain crush stiffness coefficient |
| Author | Institution |
| 梁元博 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 李锡夔 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
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| Abstract: |
| An analytical expression of stiffness coefficient for one-dimensional structure composed of random heterogeneous granular material is derived.The granular structure is generated by a random sampling algorithm according to grain size probability distribution and sizes of the structure.With the introduction of a relative breakage parameter,grain crushing is quantitatively taken into account by the change in grain size probability distribution function and the relative breakage parameter is then included in the proposed analytical expression.Numerical results demonstrate the validity of the derived analytical expression and exhibit the influence of grain crushing progress on the stiffness coefficient of granular structure. |