摘要
讨论了研究疲劳断裂的几个重要函数——疲劳断裂几率、可靠性及寿命,重点研究了金属的疲劳断裂几率.在详细的数学推导之后,给出了金属疲劳断裂几率即一个变上限复杂积分的近似解析函数表达式,并与计算机的数值曲线进行了比较.从而使疲劳断裂的统计理论具有了实际应用价值。
Fatigue fracture probability, reliability and life of structures are important functions in studies concerned with fatigue fractures here discussed, with an emphasis on fatigue fracture probability of metals. Following a detailed mathematical derivation a new approximate algorithm for the fatigue fracture of metals is given namely a complicate integral having a changing upper limit. Statistical theory of fatigue fracture finds here an actual application.
出处
《北京理工大学学报》
EI
CAS
CSCD
1993年第2期140-146,共7页
Transactions of Beijing Institute of Technology
关键词
疲劳断裂
可靠性
断裂几率
寿命
fatigue fracture
reliability/fracture probability
average life
microcrature distribution function
