ML13220A272

Email from M. Benson to H. Rathbun, Just Let Me Know If I Can Help with N Anna Stuff

ML13220A272
Person / Time
Site:	North Anna
Issue date:	04/19/2012
From:	Michael Benson NRC/RES/DE
To:	Rathbun H Office of Nuclear Regulatory Research
References
FOIA/PA-2013-0139
Download: ML13220A272 (1)

Text

Fr.m: Benson, Michael To:

Cc: Rudland. David

Subject:

. RE: just let me know Ifi can help with n anna stuff <eom>

Date: Thursday, April 19, 2012 10:07:00 AM On it.

From: Rathbun, Howard Sent: Thursday, April 19, 2012 9:59 AM To: Benson, Michael Cc: Rudland, David

Subject:

RE: just let me know if i can help with n anna stuff <eom>

Sure. Run David's flaw evaluation spreadsheet with the attached input deck, and change the residual stress to be constant through-wall at 110% of yield stress (assume yield stress for Inconel of 372 MPa). This will be a bounding case. Run for crack growth rate parameters of 0.242, 0.438, 0.654, 0.988, and 1.780, all times 10^-12. Develop a CDF like David did in the attached spreadsheet with sheet entitled "Dave".

This will be a big help.

Thanks, Howard From: Benson, Michael Sent: Thursday, April 19, 2012 8:14 AM To: Rathbun, Howard

Subject:

just let me know if i can help with n anna stuff <eom>

Michael Benson, PhD U.S. Nuclear Regulatory Commission Materials Engineer - RES/DE/CIB Phone: (301) 251-7492 Email: Michael.Benson@nrc.gov Office: CSB 5AW0 Mail Stop: CSB 5A24m OwK