00453nam a22001817a 4500 CEME 20210628204337.0 210127b xxu||||| |||| 00| 0 eng d 0-8031-0996-2 . 620.1126 MEC Newman, J.C,Elber, Wolf 69980 Mechanics of fatigue crack closure USA ASTM 1988 668P FATIGUE CRACK CLOSURE 69981 BK ddc 577046 577046 0 0 0 0 CEME CEME GEN 2017-04-17 0 620.1126 MEC CEME-38714 2021-06-28 2021-06-28 BK