Weld Residual Stress Finite Element Analysis Validation, 46524-46525 [2018-19941]

Download as PDF 46524 Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Notices Place: National Science Foundation, 2415 Eisenhower Avenue, Alexandria, Virginia 22314. Type of Meeting: Part—Open. Contact Person: Cassandra Dudka, PIRE Program Manager, National Science Foundation, 2415 Eisenhower Avenue, Alexandria, VA 22314; Telephone 703/292–7250. Purpose of Meeting: NSF reverse site visit to conduct a review during year 3 of the five-year award period. To conduct an in-depth evaluation of performance, to assess progress towards goals, and to provide recommendations. Agenda: See attached. Reason for Closing: Topics to be discussed and evaluated during closed portions of the reverse site review will include information of a proprietary or confidential nature, including technical information; and information on personnel. These matters are exempt under 5 U.S.C. 552b(c), (4) and (6) of the Government in the Sunshine Act. Dated: September 7, 2018. Crystal Robinson, Committee Management Officer. Partnerships for International Research and Education (PIRE) Reverse Site Visit Agenda PIRE–1545684 (PI: Barbara Schneider) daltland on DSKBBV9HB2PROD with NOTICES NSF Room C3080 Friday, October 12, 2018 8:00 a.m. Panelists arrive. Coffee/light refreshments available 8:15 a.m.–8:45 a.m. Panel Orientation (CLOSED), PIRE Rationale and Goals, Charge to Panel 8:45 a.m. PIs arrive. Introductions (OPEN) 9:00 a.m.–11:30 a.m. PIRE Project Presentation should cover the following: (OPEN) Research Integrating Research & Education Students (e.g. involvement in project, recruitment, diversity) Project Management and Communication Evaluation & Assessment Institutional Support International Partnerships 11:30 a.m.–12:30 p.m. Questions and Answers 12:30 p.m.–2:00 p.m. Working Lunch— Panel Discussion (CLOSED) 2:00 p.m.–2:30 p.m. Initial Feedback to Project Team (CLOSED) 2:30 p.m. PIRE PI and presenters are dismissed 2:30 p.m.–4:30 p.m. Panel meets for Reverse Site Visit Report Preparation (CLOSED) 4:30 p.m.–4:45 p.m. Report presented to and discussion held with NSF staff (CLOSED) VerDate Sep<11>2014 19:20 Sep 12, 2018 Jkt 244001 5:00 p.m. End of Reverse Site Visit [FR Doc. 2018–19891 Filed 9–12–18; 8:45 am] BILLING CODE 7555–01–P I. Obtaining Information and Submitting Comments NUCLEAR REGULATORY COMMISSION [Docket No. NRC–2018–0168] Weld Residual Stress Finite Element Analysis Validation Nuclear Regulatory Commission. ACTION: Draft NUREG; request for comment. AGENCY: 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 https://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: Jennifer.Borges@nrc.gov. 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: michael.benson@ nrc.gov; or Patrick Raynaud, Office of Nuclear Regulatory Research, telephone: 301–415–1987, email: patrick.raynaud@ nrc.gov. Both are staff of the U.S. SUMMARY: PO 00000 Frm 00049 Fmt 4703 Sfmt 4703 Nuclear Regulatory Commission, Washington, DC 20555–0001. SUPPLEMENTARY INFORMATION: 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 publiclyavailable information related to this action by any of the following methods: • Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC–2018–0168. • NRC’s Agencywide Documents Access and Management System (ADAMS): You may obtain publiclyavailable documents online in the ADAMS Public Documents collection at https://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 pdr.resource@ nrc.gov. 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 https:// 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 E:\FR\FM\13SEN1.SGM 13SEN1 Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Notices daltland on DSKBBV9HB2PROD with NOTICES 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 VerDate Sep<11>2014 19:20 Sep 12, 2018 Jkt 244001 NUCLEAR REGULATORY COMMISSION [Docket No. 72–1050; NRC–2016–0231] 46525 at: https://www.nrc.gov/waste/spentfuel-storage/cis/waste-controlspecialist.html. FOR FURTHER INFORMATION CONTACT: Interim Storage Partners LLC’s Consolidated Interim Spent Fuel Storage Facility; Correction Nuclear Regulatory Commission. ACTION: Environmental impact statement; reopening of scoping comment period; correction. AGENCY: The U.S. Nuclear Regulatory Commission (NRC) is correcting a notice that was published in the Federal Register (FR) on September 4, 2018, reopening the scoping comment period for the NRC’s Environmental Impact Statement (EIS) for the Interim Storage Partners LLC (ISP) proposed consolidated interim storage facility for spent nuclear fuel, to be located on the Waste Control Specialists LLC (WCS) site in Andrews County, Texas. DATES: The correction is effective September 13, 2018. ADDRESSES: Please refer to Docket ID NRC–2016–0231 when contacting the NRC about the availability of information regarding this document. You may obtain publicly-available information related to this document using any of the following methods: • Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC–2016–0231. Address questions about dockets in Regulations.gov to Jennifer Borges; telephone: 301–287–9127; email: Jennifer.Borges@nrc.gov. For technical questions, contact the individual(s) listed in the FOR FURTHER INFORMATION CONTACT section of this document. • NRC’s Agencywide Documents Access and Management System (ADAMS): You may obtain publiclyavailable documents online in the ADAMS Public Documents collection at https://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 pdr.resource@ nrc.gov. Documents related to WCS’ license application can be found under Docket Number 72–1050. • 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. • Project web page: Information related to the ISP CISF project can be accessed on the NRC’s project web page SUMMARY: PO 00000 Frm 00050 Fmt 4703 Sfmt 4703 James Park, Office of Nuclear Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, Washington DC 20555–0001; telephone: 301–415–6954; email: James.Park@nrc.gov. SUPPLEMENTARY INFORMATION: In the FR on September 4, 2018, in FR Doc. 2018– 18067, on page 44923, in column one, under the second paragraph, last line in Section II, ‘‘Discussion,’’ correct the date from ‘‘October 19, 2018’’ to ‘‘September 4, 2018.’’ The scoping comment period due date was inadvertently added. The NRC has decided to reopen the EIS public scoping comment period on the application until October 19, 2018, to allow more time for members of the public to submit their comments. Dated at Rockville, Maryland, on September 7, 2018. For the Nuclear Regulatory Commission. Brian W. Smith, Deputy Director, Division of Fuel Cycle Safety, Safeguards, and Environmental Review, Office of Nuclear Material Safety and Safeguards. [FR Doc. 2018–19928 Filed 9–12–18; 8:45 am] BILLING CODE 7590–01–P POSTAL REGULATORY COMMISSION [Docket No. CP2018–301] New Postal Products Postal Regulatory Commission. Notice. AGENCY: ACTION: The Commission is noticing a recent Postal Service filing for the Commission’s consideration concerning negotiated service agreements. This notice informs the public of the filing, invites public comment, and takes other administrative steps. DATES: Comments are due: September 17, 2018. ADDRESSES: Submit comments electronically via the Commission’s Filing Online system at https:// www.prc.gov. Those who cannot submit comments electronically should contact the person identified in the FOR FURTHER INFORMATION CONTACT section by telephone for advice on filing alternatives. SUMMARY: FOR FURTHER INFORMATION CONTACT: David A. Trissell, General Counsel, at 202–789–6820. SUPPLEMENTARY INFORMATION: E:\FR\FM\13SEN1.SGM 13SEN1

Agencies

NUCLEAR REGULATORY COMMISSION

[Federal Register Volume 83, Number 178 (Thursday, September 13, 2018)]
[Notices]
[Pages 46524-46525]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[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.

-----------------------------------------------------------------------

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 https://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 https://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 https://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 https://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

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