83_FR_46702 83 FR 46524 - Weld Residual Stress Finite Element Analysis Validation

83 FR 46524 - Weld Residual Stress Finite Element Analysis Validation

NUCLEAR REGULATORY COMMISSION

Federal Register Volume 83, Issue 178 (September 13, 2018)

Page Range46524-46525
FR Document2018-19941

The U.S. Nuclear Regulatory Commission (NRC) is requesting public comment on a draft NUREG entitled, ``Weld Residual Stress Finite Element Analysis Validation: Part II--Acceptance and Guidelines.'' This report proposes a methodology by which analysts can increase confidence in modeling capabilities for regulatory applications involving weld residual stress calculation. Specifically, the NRC staff posed four questions for consideration by the public (see SUPPLEMENTARY INFORMATION).

Federal Register, Volume 83 Issue 178 (Thursday, September 13, 2018) 
[Federal Register Volume 83, Number 178 (Thursday, September 13, 2018)]
[Notices]
[Pages 46524-46525]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-19941]


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NUCLEAR REGULATORY COMMISSION

[Docket No. NRC-2018-0168]


Weld Residual Stress Finite Element Analysis Validation

AGENCY: Nuclear Regulatory Commission.

ACTION: Draft NUREG; request for comment.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is requesting 
public comment on a draft NUREG entitled, ``Weld Residual Stress Finite 
Element Analysis Validation: Part II--Acceptance and Guidelines.'' This 
report proposes a methodology by which analysts can increase confidence 
in modeling capabilities for regulatory applications involving weld 
residual stress calculation. Specifically, the NRC staff posed four 
questions for consideration by the public (see SUPPLEMENTARY 
INFORMATION).

DATES: Submit comments by November 13, 2018. Comments received after 
this date will be considered if it is practical to do so, but the 
Commission is able to ensure consideration only for comments received 
before this date.

ADDRESSES: You may submit comments by any of the following methods:
     Federal Rulemaking Website: Go to http://www.regulations.gov and search for Docket ID NRC-2018-0168. Address 
questions about NRC dockets in Regulations.gov to Jennifer Borges; 
telephone: 301-287-9127; email: [email protected]. For technical 
questions, contact the individual listed in the FOR FURTHER INFORMATION 
CONTACT section of this document.
     Mail comments to: May Ma, Office of Administration, Mail 
Stop: TWFN-7-A60M, U.S. Nuclear Regulatory Commission, Washington, DC 
20555-0001.
    For additional direction on obtaining information and submitting 
comments, see ``Obtaining Information and Submitting Comments'' in the 
SUPPLEMENTARY INFORMATION section of this document.

FOR FURTHER INFORMATION CONTACT: Michael Benson, Office of Nuclear 
Regulatory Research, telephone: 301-415-2425, email: 
[email protected]; or Patrick Raynaud, Office of Nuclear 
Regulatory Research, telephone: 301-415-1987, email: 
[email protected]. Both are staff of the U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001.

SUPPLEMENTARY INFORMATION: 

I. Obtaining Information and Submitting Comments

A. Obtaining Information

    Please refer to Docket ID NRC-2018-0168 when contacting the NRC 
about the availability of information for this action. You may obtain 
publicly-available information related to this action by any of the 
following methods:
     Federal Rulemaking Website: Go to http://www.regulations.gov and search for Docket ID NRC-2018-0168.
     NRC's Agencywide Documents Access and Management System 
(ADAMS): You may obtain publicly-available documents online in the 
ADAMS Public Documents collection at http://www.nrc.gov/reading-rm/adams.html. To begin the search, select ``Begin Web-based ADAMS 
Search.'' For problems with ADAMS, please contact the NRC's Public 
Document Room (PDR) reference staff at 1-800-397-4209, 301-415-4737, or 
by email to [email protected]. The draft NUREG on ``Weld Residual 
Stress Validation'' is available in ADAMS under Accession No. 
ML18242A007.
     NRC's PDR: You may examine and purchase copies of public 
documents at the NRC's PDR, Room O1-F21, One White Flint North, 11555 
Rockville Pike, Rockville, Maryland 20852.

B. Submitting Comments

    Please include Docket ID NRC-2018-0168 in your comment submission.
    The NRC cautions you not to include identifying or contact 
information that you do not want to be publicly disclosed in your 
comment submission. The NRC will post all comment submissions at http://www.regulations.gov as well as enter the comment submissions into 
ADAMS. The NRC does not routinely edit comment submissions to remove 
identifying or contact information.
    If you are requesting or aggregating comments from other persons 
for submission to the NRC, then you should inform those persons not to 
include identifying or contact information that they do not want to be 
publicly disclosed in their comment submission. Your request should 
state that the NRC does not routinely edit comment submissions to 
remove such information before making the comment submissions available 
to the public or entering the comment into ADAMS.

II. Background

    Between 2008-2015, the Electric Power Research Institute and the 
NRC

[[Page 46525]]

conducted a joint research program on weld residual stress (WRS) 
modeling under a memorandum of understanding. This research program 
consisted of several modeling and measurement studies on prototypic 
mockups to represent the residual stress state in safety-related 
nuclear components susceptible to primary water stress corrosion 
cracking, see NUREG-2162 (ADAMS Accession No. ML14087A118). Since then, 
the NRC has made use of the data gained in that research program to 
formulate a potential validation scheme for finite element modeling of 
WRS. The NRC's proposal is documented in a draft NUREG entitled, ``Weld 
Residual Stress Finite Element Analysis Validation: Part II-Proposed 
Validation Procedure'' (ADAMS Accession No. ML18242A007). The NRC is 
requesting public comment on this document. Specifically, the NRC would 
like feedback on four specific technical issues related to the proposed 
validation procedure:
    1. The NRC recommended the use of the average hardening approach in 
the current version of the draft NUREG (``average hardening'' meaning 
the arithmetic mean of isotropic and nonlinear kinematic results). 
Given the discussion in Section 5.2, please comment on the advantages 
and disadvantages of using either the averaging approach or isotropic 
hardening. What initial and recurring costs are foreseen in 
implementing either approach in future analyses?
    2. The NRC introduced four options for benchmark in Section 5.4.2. 
The NRC chose to develop the validation scheme with a benchmark based 
upon the modeling results, rather than the measurements. Please comment 
on the NRC's proposal and whether the justification is adequate.
    3. Please comment on the proposed quality metrics introduced in 
Section 5.4.7. Are these metrics appropriate for their intended 
purpose? Has the NRC presented an appropriate technical justification 
(see Sections 5.4.8 and 5.4.10) for the proposed metrics?
    4. Please comment on the feasibility of the proposed validation 
scheme. What initial (e.g., software and guidance development) and 
recurring (i.e., costs for each analysis) costs are foreseen for 
implementing the validation scheme?

    Dated at Rockville, Maryland, this 10th day of September, 2018.

    For the Nuclear Regulatory Commission.
Raj Iyengar,
Chief, Component Integrity Branch, Division of Engineering, Office of 
Nuclear Regulatory Research.
[FR Doc. 2018-19941 Filed 9-12-18; 8:45 am]
 BILLING CODE 7590-01-P

46524 Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Notices Place: National Science Foundation, 5:00 p.m. End of Reverse Site Visit Nuclear Regulatory Commission, 2415 Eisenhower Avenue, Alexandria, [FR Doc. 2018–19891 Filed 9–12–18; 8:45 am] Washington, DC 20555–0001. Virginia 22314. BILLING CODE 7555–01–P SUPPLEMENTARY INFORMATION: Type of Meeting: Part—Open. Contact Person: Cassandra Dudka, I. Obtaining Information and PIRE Program Manager, National Submitting Comments NUCLEAR REGULATORY Science Foundation, 2415 Eisenhower A. Obtaining Information COMMISSION Avenue, Alexandria, VA 22314; Please refer to Docket ID NRC–2018– Telephone 703/292–7250. [Docket No. NRC–2018–0168] 0168 when contacting the NRC about Purpose of Meeting: NSF reverse site Weld Residual Stress Finite Element the availability of information for this visit to conduct a review during year 3 Analysis Validation action. You may obtain publicly- of the five-year award period. To available information related to this conduct an in-depth evaluation of AGENCY: Nuclear Regulatory action by any of the following methods: performance, to assess progress towards Commission. • Federal Rulemaking Website: Go to goals, and to provide recommendations. ACTION: Draft NUREG; request for http://www.regulations.gov and search Agenda: See attached. for Docket ID NRC–2018–0168. comment. Reason for Closing: Topics to be • NRC’s Agencywide Documents discussed and evaluated during closed SUMMARY: The U.S. Nuclear Regulatory Access and Management System portions of the reverse site review will Commission (NRC) is requesting public (ADAMS): You may obtain publicly- include information of a proprietary or comment on a draft NUREG entitled, available documents online in the confidential nature, including technical ‘‘Weld Residual Stress Finite Element ADAMS Public Documents collection at information; and information on Analysis Validation: Part II— http://www.nrc.gov/reading-rm/ personnel. These matters are exempt Acceptance and Guidelines.’’ This adams.html. To begin the search, select under 5 U.S.C. 552b(c), (4) and (6) of the report proposes a methodology by ‘‘Begin Web-based ADAMS Search.’’ For Government in the Sunshine Act. which analysts can increase confidence problems with ADAMS, please contact Dated: September 7, 2018. in modeling capabilities for regulatory the NRC’s Public Document Room (PDR) Crystal Robinson, applications involving weld residual reference staff at 1–800–397–4209, 301– Committee Management Officer. stress calculation. Specifically, the NRC 415–4737, or by email to pdr.resource@ staff posed four questions for nrc.gov. The draft NUREG on ‘‘Weld Partnerships for International Research consideration by the public (see Residual Stress Validation’’ is available and Education (PIRE) Reverse Site Visit SUPPLEMENTARY INFORMATION). in ADAMS under Accession No. Agenda PIRE–1545684 (PI: Barbara DATES: Submit comments by November ML18242A007. Schneider) 13, 2018. Comments received after this • NRC’s PDR: You may examine and NSF Room C3080 date will be considered if it is practical purchase copies of public documents at to do so, but the Commission is able to the NRC’s PDR, Room O1–F21, One Friday, October 12, 2018 ensure consideration only for comments White Flint North, 11555 Rockville 8:00 a.m. Panelists arrive. Coffee/light received before this date. Pike, Rockville, Maryland 20852. refreshments available ADDRESSES: You may submit comments B. Submitting Comments 8:15 a.m.–8:45 a.m. Panel Orientation by any of the following methods: Please include Docket ID NRC–2018– (CLOSED), PIRE Rationale and • Federal Rulemaking Website: Go to Goals, Charge to Panel 0168 in your comment submission. http://www.regulations.gov and search The NRC cautions you not to include 8:45 a.m. PIs arrive. Introductions for Docket ID NRC–2018–0168. Address (OPEN) identifying or contact information that questions about NRC dockets in you do not want to be publicly 9:00 a.m.–11:30 a.m. PIRE Project Regulations.gov to Jennifer Borges; Presentation should cover the disclosed in your comment submission. telephone: 301–287–9127; email: The NRC will post all comment following: (OPEN) Jennifer.Borges@nrc.gov. For technical Research submissions at http:// questions, contact the individual listed www.regulations.gov as well as enter the Integrating Research & Education in the FOR FURTHER INFORMATION Students (e.g. involvement in project, comment submissions into ADAMS. CONTACT section of this document. The NRC does not routinely edit recruitment, diversity) • Mail comments to: May Ma, Office Project Management and comment submissions to remove of Administration, Mail Stop: TWFN–7– identifying or contact information. Communication A60M, U.S. Nuclear Regulatory If you are requesting or aggregating Evaluation & Assessment Institutional Support Commission, Washington, DC 20555– comments from other persons for International Partnerships 0001. submission to the NRC, then you should 11:30 a.m.–12:30 p.m. Questions and For additional direction on obtaining inform those persons not to include Answers information and submitting comments, identifying or contact information that 12:30 p.m.–2:00 p.m. Working Lunch— see ‘‘Obtaining Information and they do not want to be publicly Panel Discussion (CLOSED) Submitting Comments’’ in the disclosed in their comment submission. 2:00 p.m.–2:30 p.m. Initial Feedback to SUPPLEMENTARY INFORMATION section of Your request should state that the NRC Project Team (CLOSED) this document. does not routinely edit comment 2:30 p.m. PIRE PI and presenters are FOR FURTHER INFORMATION CONTACT: submissions to remove such information daltland on DSKBBV9HB2PROD with NOTICES dismissed Michael Benson, Office of Nuclear before making the comment 2:30 p.m.–4:30 p.m. Panel meets for Regulatory Research, telephone: 301– submissions available to the public or Reverse Site Visit Report 415–2425, email: michael.benson@ entering the comment into ADAMS. Preparation (CLOSED) nrc.gov; or Patrick Raynaud, Office of 4:30 p.m.–4:45 p.m. Report presented to Nuclear Regulatory Research, telephone: II. Background and discussion held with NSF staff 301–415–1987, email: patrick.raynaud@ Between 2008–2015, the Electric (CLOSED) nrc.gov. Both are staff of the U.S. Power Research Institute and the NRC VerDate Sep<11>2014 19:20 Sep 12, 2018 Jkt 244001 PO 00000 Frm 00049 Fmt 4703 Sfmt 4703 E:\FR\FM\13SEN1.SGM 13SEN1

Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Notices 46525 conducted a joint research program on NUCLEAR REGULATORY at: https://www.nrc.gov/waste/spent- weld residual stress (WRS) modeling COMMISSION fuel-storage/cis/waste-control- under a memorandum of understanding. specialist.html. [Docket No. 72–1050; NRC–2016–0231] This research program consisted of FOR FURTHER INFORMATION CONTACT: several modeling and measurement Interim Storage Partners LLC’s James Park, Office of Nuclear Material studies on prototypic mockups to Consolidated Interim Spent Fuel Safety and Safeguards, U.S. Nuclear represent the residual stress state in Storage Facility; Correction Regulatory Commission, Washington DC safety-related nuclear components 20555–0001; telephone: 301–415–6954; susceptible to primary water stress AGENCY: Nuclear Regulatory email: James.Park@nrc.gov. corrosion cracking, see NUREG–2162 Commission. SUPPLEMENTARY INFORMATION: In the FR (ADAMS Accession No. ML14087A118). ACTION: Environmental impact Since then, the NRC has made use of the on September 4, 2018, in FR Doc. 2018– statement; reopening of scoping data gained in that research program to 18067, on page 44923, in column one, comment period; correction. formulate a potential validation scheme under the second paragraph, last line in for finite element modeling of WRS. The SUMMARY: The U.S. Nuclear Regulatory Section II, ‘‘Discussion,’’ correct the NRC’s proposal is documented in a draft Commission (NRC) is correcting a notice date from ‘‘October 19, 2018’’ to NUREG entitled, ‘‘Weld Residual Stress that was published in the Federal ‘‘September 4, 2018.’’ The scoping Finite Element Analysis Validation: Part Register (FR) on September 4, 2018, comment period due date was II–Proposed Validation Procedure’’ reopening the scoping comment period inadvertently added. (ADAMS Accession No. ML18242A007). for the NRC’s Environmental Impact The NRC has decided to reopen the The NRC is requesting public comment Statement (EIS) for the Interim Storage EIS public scoping comment period on on this document. Specifically, the NRC Partners LLC (ISP) proposed the application until October 19, 2018, would like feedback on four specific consolidated interim storage facility for to allow more time for members of the technical issues related to the proposed spent nuclear fuel, to be located on the public to submit their comments. validation procedure: Waste Control Specialists LLC (WCS) Dated at Rockville, Maryland, on 1. The NRC recommended the use of site in Andrews County, Texas. September 7, 2018. the average hardening approach in the DATES: The correction is effective For the Nuclear Regulatory Commission. current version of the draft NUREG September 13, 2018. Brian W. Smith, (‘‘average hardening’’ meaning the ADDRESSES: Please refer to Docket ID Deputy Director, Division of Fuel Cycle Safety, arithmetic mean of isotropic and NRC–2016–0231 when contacting the Safeguards, and Environmental Review, nonlinear kinematic results). Given the NRC about the availability of Office of Nuclear Material Safety and discussion in Section 5.2, please Safeguards. information regarding this document. comment on the advantages and You may obtain publicly-available [FR Doc. 2018–19928 Filed 9–12–18; 8:45 am] disadvantages of using either the information related to this document BILLING CODE 7590–01–P averaging approach or isotropic using any of the following methods: hardening. What initial and recurring • Federal Rulemaking Website: Go to costs are foreseen in implementing http://www.regulations.gov and search either approach in future analyses? for Docket ID NRC–2016–0231. Address POSTAL REGULATORY COMMISSION 2. The NRC introduced four options questions about dockets in for benchmark in Section 5.4.2. The Regulations.gov to Jennifer Borges; [Docket No. CP2018–301] NRC chose to develop the validation telephone: 301–287–9127; email: scheme with a benchmark based upon New Postal Products Jennifer.Borges@nrc.gov. For technical the modeling results, rather than the questions, contact the individual(s) AGENCY: Postal Regulatory Commission. measurements. Please comment on the listed in the FOR FURTHER INFORMATION NRC’s proposal and whether the ACTION: Notice. CONTACT section of this document. justification is adequate. • NRC’s Agencywide Documents SUMMARY: The Commission is noticing a 3. Please comment on the proposed Access and Management System recent Postal Service filing for the quality metrics introduced in Section (ADAMS): You may obtain publicly- Commission’s consideration concerning 5.4.7. Are these metrics appropriate for available documents online in the negotiated service agreements. This their intended purpose? Has the NRC ADAMS Public Documents collection at notice informs the public of the filing, presented an appropriate technical http://www.nrc.gov/reading-rm/ invites public comment, and takes other justification (see Sections 5.4.8 and adams.html. To begin the search, select administrative steps. 5.4.10) for the proposed metrics? ‘‘Begin Web-based ADAMS Search.’’ For 4. Please comment on the feasibility DATES: Comments are due: September problems with ADAMS, please contact 17, 2018. of the proposed validation scheme. the NRC’s Public Document Room (PDR) ADDRESSES: Submit comments What initial (e.g., software and guidance reference staff at 1–800–397–4209, 301– electronically via the Commission’s development) and recurring (i.e., costs 415–4737, or by email to pdr.resource@ Filing Online system at http:// for each analysis) costs are foreseen for nrc.gov. Documents related to WCS’ www.prc.gov. Those who cannot submit implementing the validation scheme? license application can be found under comments electronically should contact Dated at Rockville, Maryland, this 10th day Docket Number 72–1050. the person identified in the FOR FURTHER of September, 2018. • NRC’s PDR: You may examine and INFORMATION CONTACT section by daltland on DSKBBV9HB2PROD with NOTICES For the Nuclear Regulatory Commission. purchase copies of public documents at telephone for advice on filing Raj Iyengar, the NRC’s PDR, Room O1–F21, One alternatives. Chief, Component Integrity Branch, Division White Flint North, 11555 Rockville of Engineering, Office of Nuclear Regulatory Pike, Rockville, Maryland 20852. FOR FURTHER INFORMATION CONTACT: Research. • Project web page: Information David A. Trissell, General Counsel, at [FR Doc. 2018–19941 Filed 9–12–18; 8:45 am] related to the ISP CISF project can be 202–789–6820. BILLING CODE 7590–01–P accessed on the NRC’s project web page SUPPLEMENTARY INFORMATION: VerDate Sep<11>2014 19:20 Sep 12, 2018 Jkt 244001 PO 00000 Frm 00050 Fmt 4703 Sfmt 4703 E:\FR\FM\13SEN1.SGM 13SEN1


Document Created: 2018-09-13 01:02:09
Document Modified: 2018-09-13 01:02:09
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionNotices
ActionDraft NUREG; request for comment.
DatesSubmit comments by November 13, 2018. Comments received after this date will be considered if it is practical to do so, but the Commission is able to ensure consideration only for comments received before this date.
ContactMichael Benson, Office of Nuclear Regulatory Research, telephone: 301-415-2425, email: [email protected]; or Patrick Raynaud, Office of Nuclear Regulatory Research, telephone: 301-415-1987, email: [email protected] Both are staff of the U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.
FR Citation83 FR 46524 
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