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Auotpipe select series 5 version 09.06.02.06 & 10.01.00.08

September 23, 2016, 12:02 pm
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In the version specified above, autopipe will create the hydrotest load case (in the attached load case 3). My question is why is the program also creating a sustain load case in load case analysis set 3 where it should only be for hydrotest load case? See attachment. The stress report will report the sustain plus occasional load and if the hydrotest load case 3 is max in the sustain then autopipe will use that load case 3 and add it to the occasional factor for stress consideration in the occasional load effect. The previous version only consider hydrotest load case as occasional loading alone as per code requirement and not treat that load case as sustain load case.

GR + Max P{3} = Sustain

Hydrotest-NL{3} = Occasion

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Autopipe Vessel - cannot open a calculation report

September 26, 2016, 6:06 am
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I am currentl following the Autopipe Vessel tutorial on version 33.3.0.20 and am trying to view the calculation report after doing the strength calculation. When I click the calculation report button as instructed nothing happens. I can't work out what the issue is - I have seen a similar issue somewhere in which the response was that Microsoft word should be installed, which it is (Word 2013). Any idea what the problem could be?

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Reference Point - Reference Load Report

September 27, 2016, 1:52 pm
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I have a node with an anchor, concentrated weight, and a reference point. When a Reference Loads report is run the concentrated weight is not included in the loads report whereas it is included under Results > Restraint. Why does the Reference Loads report exclude the load imparted by the concentrated weight? I have tried modifying the Load Direction of the Reference Point and reversing the direction of the segment.

Version: 10.00.00.10

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Error 401 and 402. How to fix this? Thanks.

September 29, 2016, 2:23 am
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After Calculate Strength of Tank design, appear the Error 401 -  LOCAL LOADS ((Support)): L/2 - d -Cx < r/2 on loaded area and  Error 402 LOCAL LOADS ((Support)): L/2 - d -Cx < r/2 on pad O.D. How to fix this? Thanks.

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TMA in codap 2010 (MDMT )

October 1, 2016, 6:33 am
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Hello, 

I am staff of GE using the AutoPIPE vessel v8i , and I have a question about the calculation of r (7 column in the table below)

for reducing of MDMT

why you are using the strength  s and yield stress  Rtp0,2 ( design temperature and not that of the ambient temperture)

Minimum Design Metal Temperature

CODAP 2010 Div.1 Add. 10/12

Annex MA2 – Prevention of Brittle Fracture.

Fig.

Item of the used assembly ( Annex FA1 – Design of welded joints ).

Gr

figure of the used graph ( ND1 to ND6 : as-welded ) ( D1 to D6 : post-welded heat-treated ).

Tr

reference temperature.

Er

governing thickness.

TMAs

MDMT read from the graph

r

r = s / Rtp0,2 to get Dt

Dt

temperature reduction

TMAa

TMAa = TMAs - Dt

 

MDMT for each component.

 

Material

Gr

Tr

(°C)

Er

(mm)

TMAs

(°C)

r

Dt (°C)

TMAa

(°C)

01 [05]         30.10

SA516GR70

ND2

-23,3

12

-47,5

0,373

0

-47,5

02 [01]         31.05

SA516GR70

ND2

-23,3

12

-47,5

0,478

0

-47,5

03 [01]         31.06

SA516GR70

ND2

-23,3

12

-47,5

0,478

0

-47,5

Best regards.

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Ambient temperature/thermal stress range

October 4, 2016, 8:52 am
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Hi,

I have question about ambient temperature and thermal stress range.

I have made the test, I set ambient temperature Amb = -100 deg and set  operating temperature T1=+100 deg.

I have thermal stress from Amb to T1 example 230 MPa.

If I set the Amb=+100 deg and set operating temperature T1= -100 deg.

Then I have thermal stress 238MPa.

Do you know from where this difference come from?

I have been assuming that the stress shall be the same because I have the same delta T.

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How to download Demo Version of AutoPipe?

October 4, 2016, 10:50 pm
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The company where I'm working is new and we're planning to offer Engineering services to our potential customers.

Currently I'm doing a research looking for software that can perform piping stress analysis. So would like to test AutoPipe in demo version to understand the main features and interface with a possible further plan to purchase the official license.

How can I upload AutoPipe demo version?     

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insert supports other method at once

October 5, 2016, 11:17 pm
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how do i import supports?

i want to know method by excel in drawn pipe modeling

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ISO-stress vertical guide gap/Local forces and displacement

October 6, 2016, 10:54 pm
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Hi,

I have question about vertical guide gap and local forces and displacement on ISO-stress.

I have gap 10 mm in global -Y direction but in the ISO-stress is shown that the Gap3 in -Y is 2 mm. See snap below

Concerning local forces and moment on ISO-stress the Local1 is shown two times.

Is is some error in program?

The Gap3 shall be +Y but Gap4 -Y?

The Local1 in round red frame shall be Local2?

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positioning flanges & general model geometry question

October 7, 2016, 8:36 am
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I am having trouble modelling the geometry of a vessel -apologies if these questions are basic but no one in my office knows how to use VESSEL and I can't find the guidance I need in the VESSEL fundamentals tutorial. The vessel I am trying to model looks like the drawing below, it sits on top of a large pressure vessel with a flanged connection at the bottom. I started simply with a vessel on legs. When I insert flanges I cant seem to control where they are inserted (see picture). Furthermore, on a different model I worked on, when inserting a head, I couldn't figure out how to change the direction of the head.

Do you have any advice for me on where I can get more help modelling geometry of vessels or any help specific to my issues?

Many thanks in advance

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Error when creating drawing in Vessel

October 13, 2016, 7:38 am
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I get that error message when trying to create a drawing using AutoCAD 2015. I have it pointing to the correct .exe for AutoCAD 2015 in the preferences.

Any help would be appreciated.

Thanks,

Sam

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Concrete mattress input in Autopipe

October 14, 2016, 11:01 am
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Dear Sir,

I am performing re-analysis of a subsea pipeline operating at a temperature of 105 deg C. Due to high thermal expansion; we are proposing an option of placing articulated concrete mattress over the pipeline to reduce the expansion.

The thermal expansion is added on to the system as thermal anchor movement. The articulated mattress weight is added on to system as distributed load.

While analysing the result it was found that the distributed load is not causing any impact on the thermal expansion on the pipeline (i.e, axial movement), it is causing the pipeline to bend vertically only.

As per my understanding an additional weight on to the system should reduce the axial movement (i.e, thermal expansion).

I would like to know how to simulate the condition in Autopipe.

Regards,

Harikrishnan R Nair

 

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ASME STP-PT-073 SIF Update

October 19, 2016, 9:48 am
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Greetings,

When will Autopipe incorporate ASME STP-PT-073 Stress Intensity Factor and K-Factor Alignment for Metallic Pipes?

Thanks,

Ed Ruebling

907-230-9777

Ruebling@borealisbroadband.net

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Anchor at a flange

October 20, 2016, 3:33 am
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I am modelling a small vessel (man access) attached to a much larger reactor vessel Autopipe Vessel. The attachment is at the flanges at the bottom (see image below). I would like the bottom flange to act as an anchor, but as far as I can tell, I can only apply the anchor support to a model with a skirt. Is it possible to make the bottom flange an anchor?

As an aside, at the moment I am having to make the bottom flange a 'bolted cover' to complete an analysis/calculation. Is it possible to model this as a flange and have just a pressure as shown in the image?

Happy to discuss this over the phone +44 1454 663277

Thanks

Sam

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E522-50: Insufficient program memory to complete paste operation

October 20, 2016, 12:30 pm
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I am trying to copy piping from location in a stress file to another location. I select the run of pipe I want, I select the origin, and then I select the point to copy to and I get the error mentioned in the subject line.

I am using version 10.01.00.05

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AutoPIPE and ASME B31.4

October 21, 2016, 7:20 am
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Greetings,


I admit this may be a strange question but it is more of a confirmation. We have heard that there may be issues with AutoPIPE's interpretation and application of ASME B31.4. Is there any truth to this and, if so, what should we be on the look out for?

Thank you!

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Autopipe Beginner - Pipelines

October 25, 2016, 9:35 am
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I'm a pipeline engineer and would like to find training for the Autopipe beginner. I plan to use Autopipe to analyze stresses at various locations of interest along cross-country pipelines.

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In Autopipe Vessel; is there any combination of wind and seismic loads acting simultaneously?

October 26, 2016, 1:17 am
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In Autopipe Vessel; is there any combination of wind and seismic loads acting simultaneously?

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AutoPIPE Error 522111

October 26, 2016, 10:10 am
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The QA&R description for the subject AutoPIPE error is vague.

Does the error occur for all cases with more than one .TIH file in a .THL file?

How "unexpectedly" large are the results?

Is there more of a description than that provided in the QA&R monthly reports?

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Analysis of Hillside Nozzles

October 28, 2016, 7:45 am
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Hello,

I am using AutoPIPE Nozzle to confirm a few nozzle configurations in preliminary design. A question has been raised regarding the formulation of the relationships used to calculate hillside nozzles.

I’ve reviewed the WRC 107/297 guides and they are mute on hillside nozzles (actually they state that they don’t cover their design). How does AutoPIPE nozzle determine the analysis of hillside nozzles?

Thank you in advance,

-KJ

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