asme viii-d2-interpretação vol.62 2012

7/28/2019 ASME VIII-D2-Interpretação Vol.62 2012

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SECTION VIII-2

Subject Interpretation File No.2.3.3.1(c)(2)(xi), Electronic Storage (2010 Edition) .................................... VIII-2-10-06 10-1712

4.1.6.2(a)(1) and 5.2.2.4(e), Hydrostatic

Test Condition (2007 Edition, 2009 Addenda) ........................................ VIII-2-10-07 11-84

Part 5, Design by Analysis; 5.3, Protection

Against Local Failure (2010 Edition) ....................................................... VIII-2-10-08 11-239

UG-20(d) [Division 1 (2010 Edition)] and

4.1.5.2(d)(3) [Division 2 (2010 Edition)] ................................................. VIII-2-10-05 10-1800



Interpretation: VIII-2-10-05

Subject: UG-20(d) [Division 1 (2010 Edition)] and 4.1.5.2(d)(3) [Division 2 (2010 Edition)]

Date Issued: March 9, 2011

File No.: 10-1800

Question: When heat transfer calculations demonstrate that the temperature of a flange and its bolting is less than

the temperature of the adjacent vessel components, may the flange and bolting be considered as a zone in

accordance with Section VIII, Division 1, UG-20(d), and Section VIII, Division 2, 4.1.5.2(d)(3), which would

permit a lower design temperature to be used for the flange and bolting than that used for the adjacent components?

Reply: Yes.

Note: This interpretation also appears as VIII-1-10-34.


Subject: 2.3.3.1(c)(2)(xi), Electronic Storage (2010 Edition)

Date Issued: April 25, 2011

File No.: 10-1712

Question: A pressure vessel is designed in accordance with Part 5 of ASME Section VIII, Division 2 and Code

Case 2605. Is it required that the input files and output files that contain numerical analysis results utilized to

demonstrate compliance with the requirements of the Division and the Code Case be included with the electronic

storage in accordance with Part 2, 2.3.3.1(c)(2)(xi)?

Reply: Yes.


Subject: 4.1.6.2(a)(1) and 5.2.2.4(e), Hydrostatic Test Condition (2007 Edition, 2009 Addenda)


File No.: 11-84

Question: Does the ASME Section VIII, Division 2, 2007 Edition specify a limit on P

L during hydrostatic test?

Reply: No.




Subject: Part 5, Design by Analysis; 5.3, Protection Against Local Failure (2010 Edition)


File No.: 11-239

Question (1): In 5.3.2, eq. (5.5), if the sum of the principal stresses using their actual signs (“í” for compressive

stress and “+” for tensile stress) is numerically less than 4S but the absolute value is greater than 4S , is this

acceptable?

Reply (1): Yes.

Question (2): In 5.3.3.1(b) does the term “total equivalent plastic strain” include the equivalent elastic strain?

Reply (2): No.

Question (3): Paragraph 5.3.1.2 states, “Two analysis methodologies are provided for evaluating protection

against local failure to limit the potential for fracture under applied design loads.” Do the applied design loadsinclude the test condition?

Reply (3): Yes.

Question (4): In 5.3.3.1, eq. (5.6), should the actual signs of the principal stresses (“í” for compressive stress and

“+” for tensile stress) be used, such that the evaluated term can be positive or negative?

Reply (4): Yes.

asme viii-d2-interpretação vol.62 2012

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