Study on Impact Response Modes and Impact Resistance of Single Layer Reticulated Shell

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (21) : 36-41.

WANG Hao1,2 ,WANG Xiuli3, YANG Bo1,2

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Abstract

A series of impact experiments to single layer reticulated shell were conducted to verify the accuracy of FEM model established by ANSYS/LS-DYNA. Using the verified FEM model, a large number of parametric analyses were conducted to simulate the single layer reticulated shell subjected to impact load. According to the final deformation and failure form, 4 kinds of impact response modes were defined. Based on the changing regular between different impact response modes, the critical impact kinetic energy was proposed to evaluate the impact resistance for single layer reticulated shell. And the effects of various materials on the impact resistance of single layer reticulated shell are analyzed. The results show that the impact response modes change regularly with the kinetic energy carried by impact load. The impact resistance of reticulated shell can be analyzed conveniently by critical impact kinetic energy. The high-strength material can significantly improve the impact resistance of single layer reticulated shell.

Key words

single layer reticulated shell / impact test / FEM / impact response modes / critical impact kinetic energy

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WANG Hao1,2,WANG Xiuli3, YANG Bo1,2. Study on Impact Response Modes and Impact Resistance of Single Layer Reticulated Shell[J]. Journal of Vibration and Shock, 2016, 35(21): 36-41

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