for semi-ellipsoidal and torispherical heads,the collapse pressure shall be checked in accordance with section 3.6 of "pressure vessel design handbook",second edition,by henry h. bednar when head diameter to thickness ratio exceeds70 on alloy PCE or 200 on carbon steel PCE.现没有找到这个3.6条,不知道这个3.6条讲的是什么?哪位能否说说,最好能提供这个标准.
[ 本帖最后由 ZGQIAN 于 2009-4-24 16:55 编辑 ] |