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为获得荸荠的力学性能参数及对荸荠破坏极限的影响,以荸荠的品种、压缩速率及压缩部位为试验因素,对荸荠进行正交压缩试验。通过分析其对应的力-位移曲线所得到相应的破坏极限Fb、破坏能Ub等参数的试验,得出结果表明,在相同变形的情况下,荸荠轴向所承受的载荷大于径向载荷。方差分析发现,荸荠品种、压缩部位以及荸荠品种和压缩部位之间的交互作用对破坏极限影响极显著,压缩速率对破坏极限影响显著,而荸荠品种与压缩速率之间的交互作用对破坏极限影响不显著。
In order to obtain the mechanical properties of water chestnuts and their effects on the ultimate destruction of water chestnuts, the water chestnuts were subjected to orthogonal compression tests using varieties, compression rates and compression sites of water chestnuts as test factors. By analyzing the corresponding force - displacement curve, the corresponding damage limit Fb and failure energy Ub parameters are obtained. The results show that in the same deformation, the water chestnut axial load is greater than the radial load. Variance analysis showed that the interaction between water chestnut varieties, compressed parts and water chestnut varieties and compression parts had a significant effect on the damage limit, and the compression rate had a significant effect on the damage limit. However, the interaction between the water chestnut varieties and the compression rate had an impact on the destruction limit Not obvious.