Re: In-situ Chemical Composition and Physical Properties

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Re: In-situ Chemical Composition and Physical Properties
Posted by: Wieslaw Bicz , E-mail: optel@optel.com.pl, on January 30, 1999 at 15:17:41:
In Reply to: In-situ Chemical Composition and Physical Properties posted by : Dilip Maniar on January 30, 1999 at 03:38:52:
: Sir/Madam,
: This posting is regarding nondestructive testing techniques available for in-situ material evaluation. I will briefly describe the problem we are facing. It will be of great use to us if you can suggest some direction to look for.
: I am a graduate student at The University of Texas at Austin. I am working on a research project related to historic metal bridges. The bridge that I am working on as a case study was constructed in 1885. We don't have any details about the metal used in the construction of that bridge. We are looking at some of the nondestructive testing techniques to evaluate the mechanical properties and the chemical composition of the metal used. Generally we take out a piece of metal from a bridge and carry out destructive tests in the laboratory to know everything about it. In my case study, the structural analysis shows that all the bridge members are optimized and we can not take out any piece of metal from the bridge for material evaluation. Our main objective is to know chemical composition, mechanical properties and elastic properties of the metal used.
: We will highly appreciate your help in to the matter.
: Dilip Maniar
: Graduate Research Assistant
: UT Austin Structural Engineering
: FSEL: 512-471-5783
: Home: 512-478-9275
: maniard@mail.utexas.edu
It is possible to test almost all mechanical properties with ultrasonic waves (Lame constants, Young module, Poisson constant, density and more) with ultrasound.
I can imagine, it could be possible to do it on your bridge, but you need some preparations and tools.
We are making such measuremenst, but only with a pieces of material, not on the bridge, but I dont think, it is a real problem.
Wieslaw Bicz
Optel sp. z o.o.

optel

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: : Sir/Madam, : : This posting is regarding nondestructive testing techniques available for in-situ material evaluation. I will briefly describe the problem we are facing. It will be of great use to us if you can suggest some direction to look for. : : I am a graduate student at The University of Texas at Austin. I am working on a research project related to historic metal bridges. The bridge that I am working on as a case study was constructed in 1885. We don't have any details about the metal used in the construction of that bridge. We are looking at some of the nondestructive testing techniques to evaluate the mechanical properties and the chemical composition of the metal used. Generally we take out a piece of metal from a bridge and carry out destructive tests in the laboratory to know everything about it. In my case study, the structural analysis shows that all the bridge members are optimized and we can not take out any piece of metal from the bridge for material evaluation. Our main objective is to know chemical composition, mechanical properties and elastic properties of the metal used. : : We will highly appreciate your help in to the matter. : : Dilip Maniar : : Graduate Research Assistant : : UT Austin Structural Engineering : : FSEL: 512-471-5783 : : Home: 512-478-9275 : : maniard@mail.utexas.edu : It is possible to test almost all mechanical properties with ultrasonic waves (Lame constants, Young module, Poisson constant, density and more) with ultrasound. : I can imagine, it could be possible to do it on your bridge, but you need some preparations and tools. : We are making such measuremenst, but only with a pieces of material, not on the bridge, but I dont think, it is a real problem. : Wieslaw Bicz : Optel sp. z o.o.

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