ML24022A252
| ML24022A252 | |
| Person / Time | |
|---|---|
| Site: | 07103004 |
| Issue date: | 08/28/2023 |
| From: | Edlow International Co, US Dept of Transportation (DOT), Office of Hazardous Materials Safety |
| To: | Garcia-Santos N Storage and Transportation Licensing Branch |
| Shared Package | |
| ML23255A102 | List: |
| References | |
| 001794 | |
| Download: ML24022A252 (1) | |
Text
A. 4. 4. 3. 3 Ft t i gue of l i ni ng devi ce( st ai nl ess st eel )
Assung t hat t he l i ni ng devi ce i s handl ed 20 t i l nes a year, t he rcal st i c assumed number of l i f t i ng t i rnes duri ng he peri od of use wi n be 800 t i l nes, but he number of hl t i ng t i mcs f or comphancc wi t h he engi nccri ng cri t eri a i s conseat i vel y assumed t o be 4, 000 t i l nes, and t he repeat count of 4, 000 t i l nes covers t he assumed number of uses, The maxi mum st resses i n t he eval u at i on mcnt i oned i n A. 4. 4. 3 St t ess Cal cul at i on are
( H01CS On he l ni ng l ugS) f Or t he mai n body l i ni ng l ug and
( H01CS On t he ht i ng l ugs of l i d) f Or he l i d hf t i ng l ug, wi h he resul t ht t t he repct i t i on st resses are f or t he mai n body LAi ng l ug and f or t he nd hl l i n8 1ug, whi ch are l ower t han he rcpet i t i ve peak st rcss st rcngh of 4000 t i mcs i n he desi gn f at i gue di agram shown i n(
) Fi g. 147, meani ng hat t he a1l owabl e repcat count i s hi gher t han t hc repcat count duri ng t he pl anned peri od of use.
Based on hc above, as a resul t of t he f at i guc cval uat i on by set t i ng t he rcpcat count conservat i vel y, i t was conan4Cd t hat f ht i gue f aure di d not occur.
( ) A 67