Feb 24, 2020  
2019 - 2020 Cowley College Academic Catalog 
    
2019 - 2020 Cowley College Academic Catalog

NDT3461 ULTRASONIC TESTING I COURSE PROCEDURE


NDT 3461 ULTRASONIC TESTING I

3 Credit Hours

 

Student Level:

This course is open to students on the college level in either the Freshman or Sophomore year and to area high school vocational students.

Catalog Description:

NDT 3461 - Ultrasonic Testing I (3 hrs.)

This course is devised to give the student a complete introduction through hands-on experience in the ultrasonic method within the field of nondestructive testing. The course is designed to meet certain Nondestructive Level I requirements in accordance with A.S.N.T., SNT-TC-1A, & NAS-410.

Course Classification:

Lab

Prerequisites:

INR3716 Technical Mathematics or instructor approval.

Controlling Purpose:

This course is designed to impart the fundamentals of ultrasonic testing; it’s applications, techniques, process controls and the terminology such that the student could pass a typical industrial certification examination in accordance with A.S.N.T. SNT-TC-1A or NAS-410.

Learner Outcomes:

  1. Upon completion of this course the student will be able to:
  2. Perform and interpret standard process control tests.
  3. Differences between the specific techniques.
  4. Determine test requirements for a specific component.
  5. Perform a given ultrasonic inspection correctly and to interpret and report the results.
  6. Pass a qualification examination (theory and practical prepared in accordance with the industry standards. SNT TC-1A & NAS-410)
  7. Correctly apply safety attitudes and procedures associated with ultrasonic testing that will insure a safe work place environment.

Unit Outcomes for Criterion Based Evaluation:

The following outline defines the minimum core content not including the final examination period. Instructors may add other material as time allows.

UNIT 1: HISTORY OF ULTRASONICS

Outcomes: Upon completion of this unit, the students will know the background and history of ultrasonics.

  • Explain the beginning of ultrasonic inspection in Russia.
  • Describe the advancements made by Dr. Firestone.
  • Describe the advancements made possible by the computer

UNIT 2: FUNDAMENTAL PROPERTIES OF SOUND

Outcomes: Upon completion of this unit, the students will be able to successfully list, describe and calculate sound movement in materials.

  • Snell’s law calculations and predict sound travel in a material.
  • Calculate angles of insistence or refraction in given materials and one angle.
  • Given velocity and density, calculate acoustic impedance.
  • Calculate energy loss in a given material.
  • Calculate beam spread in a material.

UNIT 3: PRINCIPLES OF WAVE PROPAGATION

Outcomes: Upon completion of this unit, the students will be able to successfully generate answers to calculations describing wave propagation.

  • Describe wave propagation in a media.
  • Describe wave propagation as it travels as a surface wave.
  • Describe wave propagation as it travels as a plate wave.
  • Explain the difference in wave modes, and list one advantage of using each mode.

UNIT 4: GENERATION OF ULTRASONIC WAVES

Outcomes: Upon completion of this unit, the students will be able to successfully describe the generation of ultrasonic waves.

  • Illustrate in a block diagram an ultrasonic instrument.
  • Define the piezoelectric effect.
  • Calculate the energy deference between two signals.
  • List and describe three materials that are not good propagators of sound waves.

UNIT 5: ULTRASONIC TESTING CONTACT METHODS

Outcomes: Upon completion of this unit, the students will be able to successfully perform contact inspections.

  • Calibrate an ultrasonic unit given a test block and range using compressional wave mode.
  • Locate and explain defects found in test materials using compressional waves.

UNIT 6: ULTRASONIC TESTING IMMERSION METHODS

Outcomes: Upon completion of this unit, the students will be able to successfully perform immersion inspections.

  • Calculate the amount of water path necessary for a given inspection.
  • Locate and explain defects found in test samples.
  • Demonstrate the ability to set-up an immersion inspection.

UNIT 7: ULTRASONIC TEST EQUIPMENT

Outcomes: Upon completion of this unit, the students will be able to successfully perform calibrations on two or more ultrasonic instruments.

  • Operate two flaw detectors to accurately determine thickness of materials.
  • Operate two thickness gauges to accurately determine thickness of the material.

 

UNIT 8: SELECTION OF TEST PARAMETERS

Outcomes: Upon completion of this unit, the students will be able to successfully operate the instrument eliminating variables that would interfere with the inspection.

  • Examine two materials demonstrating variables that were suppressed using pulsar and receiver controls.
  • Calculate and demonstrate the variables that change when the material changes from metal to epoxy composite.

UNIT 9: TEST CALIBRATION AND STANDARDIZATION

Outcomes: Upon completion of this unit, the students will be able to successfully calibrate and standardize two ultrasonic instruments.

  • Apply calculations and produce a DAC on two instruments.
  • Apply calculations and demonstrate use of area amplitude blocks.
  • Demonstrate the ability to set-up a ten inch shear wave screen.

UNIT 10: VARIABLES AFFECTING TEST RESULTS

Outcomes: Upon completion of this unit, the students will be able to successfully list and describe variables affecting an ultrasonic inspection.

  • List and describe five variables that could affect a shear wave inspection results.
  • List and describe five variables that could affect a compressional wave inspection results.

UNIT 11: INTERPRETATION OF ULTRASONIC INDICATIONS

Outcomes: Upon completion of this unit, the students will be able to successfully locate and evaluate indications found when inspecting with compressional waves.

  • Calculate location, and classify all defects found in two samples.

  • Examine five samples and demonstrate location of defects.

Projects Required:

Refer to Syllabus

Textbook:

Contact Bookstore for current textbook.

Attendance Policy:

Students should adhere to the attendance policy outlined by the instructor in the course syllabus.

Grading Policy:

The grading policy will be outlined by the instructor in the course syllabus.

Maximum class size:

Based on classroom occupancy.

Course Time Frame:

The U.S. Department of Education, Higher Learning Commission and the Kansas Board of Regents define credit hour and have specific regulations that the college must follow when developing, teaching and assessing the educational aspects of the college.  A credit hour is an amount of work represented in intended learning outcomes and verified by evidence of student achievement that is an institutionally-established equivalency that reasonably approximates not less than one hour of classroom or direct faculty instruction and a minimum of two hours of out-of-class student work for approximately fifteen weeks for one semester hour of credit or an equivalent amount of work over a different amount of time.  The number of semester hours of credit allowed for each distance education or blended hybrid courses shall be assigned by the college based on the amount of time needed to achieve the same course outcomes in a purely face-to-face format.

Refer to the following policies:

402.00 Academic Code of Conduct

263.00 Student Appeal of Course Grades

403.00 Student Code of Conduct

Disability Services Program: 

Cowley College, in recognition of state and federal laws, will accommodate a student with a documented disability.  If a student has a disability which may impact work in this class which requires accommodations, contact the Disability Services Coordinator.