AAE552-Session15

AAE552-Session15 - AAE 552 Spring 2009 A. F. Grandt AAE...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
AAE 552 Spring 2009 – A. F. Grandt 1 1 AAE 552: Nondestructive Evaluation of Structures and Materials A. F. Grandt, Jr. Professor of Aeronautics and Astronautics Purdue University W. Lafayette, IN 47907 Session 15 – 16 February 2009 2 Contact Information Alten F. (Skip) Grandt, Jr. Email: aae552@ecn.purdue.edu Telephone: Office: 765-494-5141 Home: 765-463-4276 FAX: 765-494-0307 Course webpage accessed at: http://www.itap.purdue.edu/tlt/blackboard 3 AAE 552 Session 15 16 February 2009 Last Time: Finish Visual inspection Endoscopes Machine vision Case histories Pros/cons Today: Start penetrant inspection 4 Assignment Please read Textbook : Chapter 10 Webpage powerpoint references “Visual inspection” – collaboration for NDT education “Endoscopes: The Borescope for Humans,” Christine Poulin AAE 552 term paper Abstract #2 – Due Session 18 (23 February 2009) Paper#1 – Due Session 21 (2 March 2009) 5 Visual Inspection (Fig. 10.1) Visual detection of surface anomalies with the aid of lighting, mirrors, low power magnification Borescopes Spring 2006 Endoscopes: The Borescope for Humans By: Christine Poulin AAE 552 March 2006
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
AAE 552 Spring 2009 – A. F. Grandt 2 Machine Vision Inspection 8 Visual Inspection Case Studies Goal : demonstrate quantitative results of visual inspection under aircraft service conditions Case #1 Japanese Airline Experience (1988- 1990) Endo et. al. in-service inspection results No POD Case #2 FAA Benchmark (1995) Spencer, FAA validation center Large panels and retired 737 aircraft POD data 9 Visual Inspection Advantages s Relatively inexpensive s Portable s Immediate results s Minimal training s No special safety precautions s Readily used with other methods s Can be routinely conducted by many individuals not formally designated with NDE responsibility s e.g. pilot walk around, passengers, etc. 10 Visual Inspection Disadvantages s Only surface anomalies s Visual access required s Surface cleaning necessary s Sensitive to lighting s Inspector vision dependent on many factors – difficult to monitor continuously s POD low relative to other methods 11 Ch 10: Penetrant Inspection Penetration of colored liquid locates surface breaking anomalies PENETRANT TESTING
Background image of page 2
AAE 552 Spring 2009 – A. F. Grandt 3 13 Chapter 10 Liquid Penetrant Inspection Major steps Classification of Penetrant Methods Penetrant Applications Safety Considerations Penetrant Advantages & Disadvantages Introduction This module is intended to provide an introduction to the NDT method of penetrant testing. Penetrant Testing, or PT, is a nondestructive testing method that builds on the principle of Visual Inspection. PT increases the
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 17

AAE552-Session15 - AAE 552 Spring 2009 A. F. Grandt AAE...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online