【作者】 黄焱； 史庆增； 宋安；

【Author】 HUANG Yan;SHI Qing-zeng;SONG An Tianjin University

【机构】 天津大学；

【摘要】 冰是一种复杂的材料,在不同的作用速率下,冰表现出完全不同的破坏特征。同时,在与不同的结构形式发生作用时,冰的破坏形式也不尽相同。对冰的破坏形式及其破坏进程控制机理的了解和把握,是保证工程设计中对冰力值估计准确性的重要前提。以我们对不同结构形式进行的冰力模型试验研究成果和近期国际上有代表性的研究为依据,对工程中常见的冰破坏形式、控制机理进行了讨论。研究中发现,冰的脆性破坏成为实际情况中冰的主要破坏特征,同时由于冰自身复杂的材料特性,这种破坏特征也成为最难把握的一种特征。对于冰的延性破坏已有比较成熟的认识。更多还原

【Abstract】 Ice is a complicated material, which behaves different failure characteristics under different interactionrates. At the same time, when the ice sheet interacting with different shaped structures, its failure modes alsovaries. The understanding and hold of the failure of ice and its dominating mechanisms are important ininsuring the accuracy of the estimation of ice force in engineering. Basing on the representative analysisworks in the world in the near future and the analysis works that we performed through ice force model tests,the common modes of the failure of ice in engineering and the corresponding mechanisms axe discussed inthis paper. It has been found that the brittle failure of ice is the dominating characteristic in practical cases inour studies, and owing to the complicated material characteristics of ice, the mechanisms of brittle failure ishard to hold. The study of ductile failure of ice is near to be completed.更多还原