基于粘聚单元模型的平整冰-竖直圆柱体碰撞数值模拟

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Abstract Based on the nonlinear finite element method, a cohesive element model was combined with the linear softening elastoplastic constitutive model to simulate the collision between level ice and a fixed vertical cylinder.The failure mode of level ice and the ice loads on the cylinder during the collision were studied.The simulated results were compared with the practical observations on the ice failure mode in ice sheet-lighthouse collision, and good agreement was achieved.Then the effects of traction-separation law of the cohesive element model and collision velocity on the horizontal ice loads on the cylinder were investigated, respectively.The simulated results show that the traction-separation law has a limited influence on the horizontal ice loads, and the ice loads increase with collision velocity.The growth speed of mean ice loads is slightly higher than linear growth.

Key words： cohesive element model level ice-cylinder collision ice failure mode ice loads

Received: 06 February 2018 Published: 15 August 2019

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	Articles by authors
	WANG Feng1
	ZOU Zaojian1
	2
	REN Yizhou3

Cite this article:

WANG Feng1,ZOU Zaojian1,2, et al. Numerical simulation of level ice-vertical cylinder collision based on a cohesive element model[J]. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(16): 153-158.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2019/V38/I16/153

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