AAE552-Session27

AAE552-Session27 - AAE 552 Spring 2009 A. F. Grandt AAE...

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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 27 – 23 March 2009 2 Contact Information Alten F. (Skip) Grandt, Jr. Email: [email protected] 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 27 23 March 2009 Last Time: Finished Ultrasound Today: Start eddy current 4 Assignment Please read: Chapter 13 in textbook: Eddy Current Testing “Eddy Current Testing” Collaboration for NDT Education powerpoint posted on Webpage Exam #1 – Session 29 Cover material thru ultrasonic inspection (Ch 12 in text) See topic list and sample exam on webpage 5 Midterm Exam - Session 29 25% of final grade Final exam – 30% (comprehensive) Paper 1 – 20% Paper 2 – 25% Closed book 1 page review sheet (both side of 8.5 x 11 inch sheet) Short answer, fill in blank, true/false, numerical calculations, etc. Chapters 1, 4, 10, 11, 12 Exam description and example exams on web page Chapter 11 Problems 1-5 1. Use the Internet to locate the home page for a vendor that supplies radiographic supplies for NDE purposes and record this company’s address for future reference. Examine the products and applications described on the web site and prepare a short report that describes the various capabilities and uses for some of the radiography products sold by this company. 2. Discuss the general classifications of X-ray radiography. 3. Briefly describe the four mechanisms of X-ray absorption that are important in industrial radiology and indicate their relative contribution to the total absorption/scattering process. 4. Determine the tenth-value thickness and the half-value thickness for an iron plate subjected to 0.5-MeV X-rays. 5. What factor(s) is frequently used to characterize the strength of the X-rays employed for a particular application? 6
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AAE 552 Spring 2009 – A. F. Grandt 2 Chapter 11 Problems (6-10) 6. What factors limit the maximum X-ray energy that can be obtained from a given X-ray tube? 7. Discuss the factors that would determine the choice of X-ray power for a given inspection situation. 8. What are gamma rays? How does their use compare with X-rays for NDE purposes? 9. Briefly compare and contrast neutron and conventional X-ray radiography. 10. Briefly discuss the factors that influence image quality of radiographic photographs. What techniques can be used to improve image quality? 7 Chapter 11 Problems 11-15 11. What technique is frequently used to measure the quality of an X-ray photograph? 12.
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This note was uploaded on 11/04/2010 for the course AAE 552 taught by Professor Longuski during the Spring '10 term at IUPUI.

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AAE552-Session27 - AAE 552 Spring 2009 A. F. Grandt AAE...

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