Central Calorimeter Support Cradle Jack Failure Analysis Page: 2 of 100
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CC Cradle-Jack Failure Analysis
ne uerr[ Calorimeter and its support cradle (F ure 1 ) are to e
luprp red - then tvraulic or mechanical Jacs if I araulics are used,
<fUPpK sli~ use D;/ h~ craumct1 cc'Jpibc'atzsA'' r .2 t o&
our ev.p is nr uraulically coupled giving the effect of a three point
c 7 mecr nical jams are used, f i yr s are usec for
Scc r2 snC .. t to exarrm es of jack paceraen: n a 3.5 -n
Sur nr ,oate
Hydraulically supported Mechanically supported
These two support scenarios lead to five jack failure cases to ne studied.
I is report deals with the way in which a 0.25 inch drop (Failed jCr) at
ora support affects the stresses r the cradle. The stresses from each
fae c-se ,ere analysed in two ways. First, stress factors, oef:red as
:::nts of stress intensties of the failed case with respect :c the
static case, &ere generated and then, hand calculators :mlar to 'nse in
En zneer :rg lite 3740.215-EN-14 (Reference 1) were Jo e using tre
reactor forces from the failed case
The Five Failure Cases
lre ng ', Central Calorimeter Suprort Cradle from th tcO,
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Rudland, D.L. Central Calorimeter Support Cradle Jack Failure Analysis, report, April 10, 1987; Batavia, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc831910/m1/2/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.