M & AE 3272 MECHANICAL PROPERTIES

AND PERFORMANCE LABORATORY

Course Information Spring Semester 2014

1. Course Data: Two credits;

Monday lecture at 12:201:10, Kimball B-11Lab Sessions: MondayFriday (according to section) from 2:004:25 pm,

Monday, Wednesday evenings: 7:309:55 pm; B30 Upson Hall. See the Lab Schedule Handout in the Syllabus and Schedule section on the Blackboard

WEB site for details.

2. Course WEB Page: We will try to keep this site as useful as possible for you to do the lab modules.

3. Staff: Professor Wolfgang Sachse 325 Thurston Hall 55065

Lab Director Matt Ulinski 204 Upson Hall 46365

Lab Staff Liran Gazit 112 Thurston Hall 58770

Simulation Lab Rajesh Bhaskaran 102 Rhodes Hall 50390

Master TA Amy Engelbrecht-Wiggans

TA Benjamin Hasseldine

TA Seoungjun (Elijah) Lee

TA Huichan Zhao

TA-Half Zimu Zhu

4. Course Overview: This course provides an introduction to the experimental methods,instrumentation, and data analysis associated with material property determination andmechanical performance of materials. Emphasis is placed on integration of theory andanalysis with experimental methods.

Course Objectives

Use destructive and non-destructive methods to experimentally determine a variety ofmechanical properties and performance measures for several engineering materials.

Understand how to apply industry-developed standards for materials testing. Develop an understanding of the fundamental principles of engineering instrumentation

including the design of systems for measuring displacement, force and strain.

Gain an introduction to WEB-based electronic Lab Notebooks (ELN). Design and fabricate a load cell and integrate it into a measurement system using

computerized data acquisition.

Instrument a component of a dynamic mechanical system using the engineeringinstrumentation fundamentals developed in this course.

Become familiar with using 3-D finite element modeling software in the analysis ofdynamic mechanical systems for comparison with the results with measured data.

Provide a survey of several, different engineering measurement systems andexperimental techniques.

Practice writing a concise Abstract describing the measurement problem that was to besolved; the procedure(s) you followed to solve the problem; the principal results youobtained and the significance or impact of your results. It must be concise and shouldbe written as you would for an important presentation.

Course Outcomes:

(a) Be able to use a variety of standardized methods to determine mechanical propertiesand performance measures of engineering materials.

(b) Be able to use material properties and relationships to design, build and test a load cell.

(c) Be able to analyze and experimentally test components in dynamic mechanical systems.

5. Prerequisites: M&AE 2120 and M&AE 3250 .

6. Course Format: This course consists of one 50-minute lecture per week and a 2-1/2 hourlaboratory section. The lectures are held once each week for the entire class. Laboratorysections are held bi-weekly for smaller groups. Labs are scheduled by section.

There are three experimental modules: (1) Determination of Material Properties andPerformance, (2) Transducer Fabrication and (3) Bicycle Component Modeling and Testing .Each student is expected to keep an on-line electronic research notebook (ELN) of his/herwork.

7. Grading and Assessment: There are no exams or quizzes in this course! So get in theLab and learn something useful while having fun. Assessment will be based on yourperformance in the lab, the content of your electronic Lab Notebook (ELN) andassignments. Lecture attendance is strongly suggested, since the lectures will cover materialdirectly related to the labs.

Grading of your on-line, electronic Lab Notebook will be according to five levels:

Outstanding: Clear description of the measurements made, good organization of the datafiles; data are clearly labeled and conclusions are clearly stated. This is a LabNotebook youd be proud to share with your parents or friends!

Good: Not as clear description of what was measured and the results obtained thatspossible.

Mediocre: Poor description of the measurements and unclear or scattered presentation ofresults. You know that you can do better!

Bad: Data files not clearly identified. No description of what measurements were made.Theres no comparison of materials or calculations. Graphs of data are either missingor rendered ineffective through lack of labels for the axes, or a poor choice ofunits/scale, etc. Even though the data and calculations might all be there.

Ugly: Data files are not clearly identified. The files contain pieces of data with nodescription of how the data was collected. Maybe even no plots or if there are plots theyare poorly legible with no description, comparison, or organization. There are numerouscrossed-out data or analyses sections and there are randomly appearing numbers withno clue as to which formula or equation was their source. One cannot tell whatmeasurement was made, what was measured. The Notebook is pretty much useless.

Your final course grade will be based on the following:

Lab Exercises 70% Based on attendance and participation in labsEvaluation of deliverables (Lab Reports) and tutorial assignments

Lab Notebook 20% Format and consistency of keeping up the electronic Lab Notebook (ELN)

Teamwork 10% Ability to work and complete tasks as part of a team

Assignments are due need to be uploaded to your LabArchives folder by the time indicatedin lab or announced by your TA/Instructor which will in every case be prior to the start ofyour next lab session. Given the number of students enrolled, we cannot acceptany late assignments.

8. Grading Errors: If you believe an error was made in your grade, you should submit awritten request for a regrade to your TA. The request should be as specific as possible sothat it can be discussed during the courses weekly meeting of the teaching staff. No requestswill be accepted after two weeks.

9. Electronic Lab Notebooks: Again this year, are using WEB-based electronic LabNotebooks (ELN). Your Laboratory Notebook is an essential part of this course! You havebeen invited to access to the WEB site

Three students will comprise a Lab Group and each member of the group will have access(view, upload and download) to a common set of data. But also, each student will have hisown folder in which assignments can be uploaded. All the folders will be accessible by theTAs and the Professor Sachse so please keep items you do not wish to share with the MAE3272 staff out of your folders. Youre expected to maintain your ELNs current. The ELNswill be reviewed (randomly) several times during the semester for evaluation based on fivelevels: Outstanding, Good, Mediocre, Bad and Ugly which will be factored into your finalgrade in this course.

10. Lab Reports: The completed Lab Reports must be in your LabArchives folder by theannounced time. Please note that all activity to your folder is recorded. Your electronic LabReport is comprised of your Material or Experiment Data Sheets for which templates will be

available on the LabArchives website. The data sheets should show the deviation fromresults which were expected. For Module #1, you can find data for material in the CESMaterials Selector or appropriate handbook. For Modules #2 and #3 your expected resultsare those you have computed using fundamental principles and finite element analysis, asappropriate.

Your Lab Report must also include a 200-500 word (approx) Abstract written in completesentence form. This Abstract should address the following four points:

What was the measurement problem that was to be solved? What procedure(s) did you follow to solve the problem? What were your principal results? What is the significance or impact of your results?

Grading of this element of your Lab Report will be based not only on the informationconveyed but also how well it is written. These points will be elucidated further in the LabModule Handouts as well as the lectures.

11. Individual and Group Work: You will be working in small groups during most labs. Inthe first lab module you will collect and share data with other students in your lab section,but complete the analysis on your own. In Modules 2 and 3, you will work with a group tocomplete the projects. Lab groups will be assigned at the beginning of the first Module.

All work in your electronic Laboratory Notebook should be done by you, individually. Inaddition, you will be responsible for understanding all aspects of each lab module andshould expect to be questioned about them during Lab Sections and Project Demonstrationtimes. Group work will be assessed through the use of peer evaluations and TA observation.

Missed Labs: You must obtain permission from the instructor at least one week prior tomissing a lab. In the case of an emergency you must bring documented proof on theemergency to the Instructor. Makeup work will be coordinated through the Instructor withLab TAs.

Academic Integrity: We take academic integrity very seriously: This courseadheres to all aspects of Cornells Code of Academic Integrity. The lab reports that youupload to your LabArchives folder are to be your work unless clearly stated on the first pageof the file which should list all collaborations. All violations of this policy will be turnedover to the College of Engineerings Academic Integrity Hearing Board. The Code can befound at:

12. Textbooks and Reference Materials: The course website has an extensive list of booksand reference materials that will be helpful for the course. Supporting documents for thelabs are also available for downloading on the Blackboard WEB site.

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