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Validated Materials Properties

Posted August 11, 2014 12:00 AM by SavvyExacta
Pathfinder Tags: ESDU

Design engineers can spend a great deal of time rigorously developing models, analyzing structures, and simulating product performance. Good, reliable design data is critical to the design process.

The design engineer faces an ever-increasing demand for products with a performance that must be substantiated under stringent conditions of cost and environment. If invalid material property data are utilized, then valuable engineering time will be wasted.

If the error is detected early during development or testing, then the design and structures will have to be reanalyzed with validated data and new prototypes built and tested. In the worst case, field failures could result in costly corrective actions such as scrapping of raw materials, alternative materials selection, new supplier identification and approval, product redesign, or retooling of production lines.

How do you find--and verify--that you're using accurate information?

Read the full article, Validated Aerospace Metallic Materials Properties.

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Guru
United Kingdom - Member - Old New Member

Join Date: Jul 2005
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#1

Re: Validated Materials Properties

08/11/2014 9:42 AM

I've always found Matweb to be accurate, & free.

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Guru
Technical Fields - Project Managers & Project Engineers - New Member

Join Date: Jun 2014
Posts: 623
Good Answers: 33
#2

Re: Validated Materials Properties

08/12/2014 7:09 AM

As far as I know, I have always received the material I have ordered for a design. And the materials properties for ASTM verified materials are all over the web and in hard copies.

However, I learned a good lesson one time about material properties in an expensive way: Especially true for round stock, the material properties are only valid for a certain depth toward the central axis, that is to say for example that the properties are valid only for something like 2/3 of the radius of the round stock. So if you have a 6" diameter of 1144 SP for example the properties are only good until you turn it down to 2" then all bets are off and no one knows what the material properties are at that point without further testing.

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