[MW:8107] Converting Kmet to CTOD for ECA Level 2 based on BS7910

Dear All,

 

I am currently performing an ECA (Level 2) based on BS7910 for a welded component. The material is equivalent to API 5LX65. I have not performed CTODs to obtain δmet, instead I have used Charpy v notch values to obtain Kmet values based requirement on Annex J of BS7910.

 

I understand that both are based on  different assessment routes, one being strain based and the other stress based. My dilemma is that my ECA program which I have developed is based on CTODs as a main input criteria, and it will take a lot of effort to adjust the calculations accordingly.

 

My question is; is there a method/equation I can use to convert Kmet to  δmet without performing additional CTOD tests.

 

Kind regards

 

 

Barry Gideon

           

ARV Offshore Co., Ltd.

555 Rasa Tower 2, 18th Floor

Phaholyothin Road, Jatujak, Bangkok 10900

THAILAND

Tel:       + 66 (0) 2937 1211
Fax:      + 66 (0) 2937 1212
Mobile: + 66 (0) 8 4705 0588

Skype:     Barry_Gideon

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