00824nam a2200217 c 4500001001300000005001500013007000300028008004100031041001300072049003200085052001600117056001300133082001500146245018700161260003700348300004200385502008000427504002900507546002500536700004500561KDM20120903520200812131724ta120315s2012    ulkad    m AC 000   kor  0 akorbeng0 lEM5327994lEM5327995c2fDP01a551.1b12-3  a551.12501a621.8122100a90˚곡관의 탄성응력 분포와 균열 닫힘 현상에 대한 연구 =x(The) elastic stresses of 90˚ elbows and the investigation for the crack closure phenomena /d安重爀  a서울 :b高麗大學校,c2012  axx, 214 p. :b삽화, 도표 ;c26 cm1 a학위논문(박사) --b高麗大學校 大學院,c機械工學科,d2012  a참고문헌: p. 153-165  a영어 요약 있음1 a안중혁,g安重爀0KAC2019F64274aut