Empathy List Archives

MR

Matthew Ridzon, PE

Thu, Oct 3, 2024 8:37 PM

Folks,

This question relates to ASME stress linearization. If I open ASME Sec. VIII, 5-A.4.1.2 and look at Step 2a, it states the bending stresses are only to be included for hoop and normal component stresses. In Mechanical's post-processing, there is an option to "zero through-thickness bending stress" when linearizing. According to Help documentation, if set to Yes, it will exclude SX, SXY, and SXZ bending components (i.e., they will be set to zero). When set to YES, is that option in Mechanical intended to satisfy the ASME requirements?

Matt Ridzon, PE, MSME
Sr. Engineering Analyst

Email matt@prime-engineer.com mailto:matt@prime-engineer.com
Mail 266 Main St, Burlington, VT 05401
Web www.prime-engineer.com http://www.prime-engineer.com/
[A blue hexagon with white letters Description automatically generated]
PRIME ENGINEERING LLC

This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended to be for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is prohibited.

Folks, This question relates to ASME stress linearization. If I open ASME Sec. VIII, 5-A.4.1.2 and look at Step 2a, it states the bending stresses are only to be included for hoop and normal component stresses. In Mechanical's post-processing, there is an option to "zero through-thickness bending stress" when linearizing. According to Help documentation, if set to Yes, it will exclude SX, SXY, and SXZ bending components (i.e., they will be set to zero). When set to YES, is that option in Mechanical intended to satisfy the ASME requirements? Matt Ridzon, PE, MSME Sr. Engineering Analyst Email matt@prime-engineer.com<mailto:matt@prime-engineer.com> Mail 266 Main St, Burlington, VT 05401 Web www.prime-engineer.com<http://www.prime-engineer.com/> [A blue hexagon with white letters Description automatically generated] PRIME ENGINEERING LLC This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended to be for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is prohibited.

F

Factoo,Anjum

Fri, Oct 4, 2024 5:59 AM

Hi Matt,

Your understanding is correct, ANSYS v19 and above can calculate stresses that are ASME compliant. Others can also share their views.

Below is the link to a blog that can give you some insight into the topic.

https://www.eng-tips.com/viewthread.cfm?qid=433385

Thanks
Anjum

-----Original Message-----
From: Matthew Ridzon, PE via Xansys xansys-temp@list.xansys.org
Sent: Friday, October 4, 2024 2:08 AM
To: xansys-temp@list.xansys.org
Cc: Matthew Ridzon, PE Matt@prime-engineer.com
Subject: [External] [Xansys] Zero Through-Thickness Bending Stress

This email is from an external source. Please exercise caution in opening attachments or links.

Folks,

This question relates to ASME stress linearization. If I open ASME Sec. VIII, 5-A.4.1.2 and look at Step 2a, it states the bending stresses are only to be included for hoop and normal component stresses. In Mechanical's post-processing, there is an option to "zero through-thickness bending stress" when linearizing. According to Help documentation, if set to Yes, it will exclude SX, SXY, and SXZ bending components (i.e., they will be set to zero). When set to YES, is that option in Mechanical intended to satisfy the ASME requirements?

Matt Ridzon, PE, MSME
Sr. Engineering Analyst

Email matt@prime-engineer.com mailto:matt@prime-engineer.com
Mail 266 Main St, Burlington, VT 05401
Web http://www.prime-engineer.com/http://www.prime-engineer.com/
[A blue hexagon with white letters Description automatically generated] PRIME ENGINEERING LLC

This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended to be for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is prohibited.

Hi Matt, Your understanding is correct, ANSYS v19 and above can calculate stresses that are ASME compliant. Others can also share their views. Below is the link to a blog that can give you some insight into the topic. https://www.eng-tips.com/viewthread.cfm?qid=433385 Thanks Anjum -----Original Message----- From: Matthew Ridzon, PE via Xansys <xansys-temp@list.xansys.org> Sent: Friday, October 4, 2024 2:08 AM To: xansys-temp@list.xansys.org Cc: Matthew Ridzon, PE <Matt@prime-engineer.com> Subject: [External] [Xansys] Zero Through-Thickness Bending Stress This email is from an external source. Please exercise caution in opening attachments or links. Folks, This question relates to ASME stress linearization. If I open ASME Sec. VIII, 5-A.4.1.2 and look at Step 2a, it states the bending stresses are only to be included for hoop and normal component stresses. In Mechanical's post-processing, there is an option to "zero through-thickness bending stress" when linearizing. According to Help documentation, if set to Yes, it will exclude SX, SXY, and SXZ bending components (i.e., they will be set to zero). When set to YES, is that option in Mechanical intended to satisfy the ASME requirements? Matt Ridzon, PE, MSME Sr. Engineering Analyst Email matt@prime-engineer.com<mailto:matt@prime-engineer.com> Mail 266 Main St, Burlington, VT 05401 Web http://www.prime-engineer.com/<http://www.prime-engineer.com/> [A blue hexagon with white letters Description automatically generated] PRIME ENGINEERING LLC This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended to be for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is prohibited.

MR

Matthew Ridzon, PE

Fri, Oct 4, 2024 12:58 PM

Anjum,

Thank you!

I have a couple follow-up questions...

My understanding is that Syz bending also needs to be zero. However, this switch does not zero out that stress component. Would you be able to elaborate on that?
My cited excerpt is from Sec. VIII. Do you know if this applies to Sec. III as well? If so, is there a spot anywhere in Sec. III that mentions it?

-Matt

-----Original Message-----
From: Factoo,Anjum FACTOOA@airproducts.com
Sent: Friday, October 4, 2024 2:00 AM
To: XANSYS Mailing List Home xansys-temp@list.xansys.org
Cc: Matthew Ridzon, PE Matt@prime-engineer.com
Subject: RE: [External] [Xansys] Zero Through-Thickness Bending Stress

Hi Matt,

Your understanding is correct, ANSYS v19 and above can calculate stresses that are ASME compliant. Others can also share their views.

Below is the link to a blog that can give you some insight into the topic.

https://www.eng-tips.com/viewthread.cfm?qid=433385

Thanks
Anjum

-----Original Message-----
From: Matthew Ridzon, PE via Xansys xansys-temp@list.xansys.org
Sent: Friday, October 4, 2024 2:08 AM
To: xansys-temp@list.xansys.org
Cc: Matthew Ridzon, PE Matt@prime-engineer.com
Subject: [External] [Xansys] Zero Through-Thickness Bending Stress

This email is from an external source. Please exercise caution in opening attachments or links.

Folks,

This question relates to ASME stress linearization. If I open ASME Sec. VIII, 5-A.4.1.2 and look at Step 2a, it states the bending stresses are only to be included for hoop and normal component stresses. In Mechanical's post-processing, there is an option to "zero through-thickness bending stress" when linearizing. According to Help documentation, if set to Yes, it will exclude SX, SXY, and SXZ bending components (i.e., they will be set to zero). When set to YES, is that option in Mechanical intended to satisfy the ASME requirements?

Matt Ridzon, PE, MSME
Sr. Engineering Analyst

Email matt@prime-engineer.com mailto:matt@prime-engineer.com
Mail 266 Main St, Burlington, VT 05401
Web http://www.prime-engineer.com/http://www.prime-engineer.com/
[A blue hexagon with white letters Description automatically generated] PRIME ENGINEERING LLC

This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended to be for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is prohibited.

Anjum, Thank you! I have a couple follow-up questions... * My understanding is that Syz bending also needs to be zero. However, this switch does not zero out that stress component. Would you be able to elaborate on that? * My cited excerpt is from Sec. VIII. Do you know if this applies to Sec. III as well? If so, is there a spot anywhere in Sec. III that mentions it? -Matt -----Original Message----- From: Factoo,Anjum <FACTOOA@airproducts.com> Sent: Friday, October 4, 2024 2:00 AM To: XANSYS Mailing List Home <xansys-temp@list.xansys.org> Cc: Matthew Ridzon, PE <Matt@prime-engineer.com> Subject: RE: [External] [Xansys] Zero Through-Thickness Bending Stress Hi Matt, Your understanding is correct, ANSYS v19 and above can calculate stresses that are ASME compliant. Others can also share their views. Below is the link to a blog that can give you some insight into the topic. https://www.eng-tips.com/viewthread.cfm?qid=433385 Thanks Anjum -----Original Message----- From: Matthew Ridzon, PE via Xansys <xansys-temp@list.xansys.org> Sent: Friday, October 4, 2024 2:08 AM To: xansys-temp@list.xansys.org Cc: Matthew Ridzon, PE <Matt@prime-engineer.com> Subject: [External] [Xansys] Zero Through-Thickness Bending Stress This email is from an external source. Please exercise caution in opening attachments or links. Folks, This question relates to ASME stress linearization. If I open ASME Sec. VIII, 5-A.4.1.2 and look at Step 2a, it states the bending stresses are only to be included for hoop and normal component stresses. In Mechanical's post-processing, there is an option to "zero through-thickness bending stress" when linearizing. According to Help documentation, if set to Yes, it will exclude SX, SXY, and SXZ bending components (i.e., they will be set to zero). When set to YES, is that option in Mechanical intended to satisfy the ASME requirements? Matt Ridzon, PE, MSME Sr. Engineering Analyst Email matt@prime-engineer.com<mailto:matt@prime-engineer.com> Mail 266 Main St, Burlington, VT 05401 Web http://www.prime-engineer.com/<http://www.prime-engineer.com/> [A blue hexagon with white letters Description automatically generated] PRIME ENGINEERING LLC This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended to be for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is prohibited.