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Development and Evaluation of a Small Punch Testing Device
Linköping University, Department of Management and Engineering, Engineering Materials.
2010 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In the turbine industry today, thermal barrier coatings are a commonly used, these are 0.1-2mm thick. So to be able to do some type of mechanical testing to receive material data so one can build an opinion regarding the health of the material. One needs a procedure that can work with small specimens and achieve clear results that can be transformed and compared with known data and known procedures. One of those methods is Small Punch Testing.

This thesis describes one way to develop and test a functioning prototype of a Small Punch Testing device. The thesis includes; the reason it was developed in the beginning and how it has been developed throughout the decades, also in which areas the main research is made. It also shortly describes a working procedure in Ansys to get a Finite Element Method [FEM] model working.

This method showed itself as useful, when just a small sample is at hand. The trials in this thesis also show that repetitive test can be done with good results which can be compared with real and FEM analysis data such as σ uts·

Abstract [sv]

Inom turbin industrin idag så är keramiska värme barriärer vanligt förekommande dessa är normalt 0,1-2mm tjocka. För att kunna utföra mekanisk provning som grund för att bilda en åsikt om materialets kondition. Så behöver man en metod som kan åstadkomma tydliga data med små provbitar, Small Punch Testing är en av dem.

Den här rapporten beskriver hur man kan gå tillväga för att få en fungerande prototyp. Den tar upp metodens ursprung och hur den har utvecklats under år tiondena, också mot vad den nuvarande forskningen riktar sig. Den beskriver även kort hur man ställer upp en finita element metod [FEM] modell i Ansys.

Metoden visade sig användbar när man bara har en liten provbit att tillgå. Försöken visade att repetitiva tester kan göras med bra resultat som går att jämföra med verkliga och FEM analys data.

Place, publisher, year, edition, pages
2010. , 42 p.
Keyword [en]
SPT, FEM, Prototype
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:liu:diva-59285ISRN: LIU-IEI-TEK-A-10/00870-SEOAI: oai:DiVA.org:liu-59285DiVA: diva2:350400
Uppsok
Technology
Supervisors
Examiners
Available from: 2010-09-17 Created: 2010-09-10 Last updated: 2011-03-18Bibliographically approved

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CiteExportLink to record
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Citation style
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