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发表时间：2012-01-01

发表刊物：哈尔滨工业大学学报

所属单位：运载工程与力学学部

卷号：44

期号：4

页面范围：126-130

ISSN号：0367-6234

摘要：To obtain the relationship between impact toughness and fracture
   toughness,a curve relationship of the absorbed energy in the impact
   test,test temperature and ductile to brittle transition temperature was
   established.The expressions of fracture toughness of ship steel plates
   related to steel plate thicknesses and service temperatures were
   obtained.According to the P-S-N curve,the reliability was introduced,and
   the method to determine the corresponding fracture toughness of ship
   plate was realized under different steel plate thickness and service
   temperature in the arbitrary reliabilities condition,which can be a
   reference to make safe assessment of the cracked plate in ship
   structure.

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