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Javier Ortega, PhD
Lab Teaching Assistants:
Rolando Garcia
Luz Sotelo
Erick Gonzalez
Spring 2015
Dr. Javier Ortega
Office ENGR 3.263 (Fishbowl)
Phone (956) 665-3527
Office Hrs M-R 4:00 pm – 5:00 pm
Email [email protected]
Website http://ortagaja-utpa.weebly.com
BlackBoard Learn will be utilized
Permanently bound carbon copy notebook
Safety glasses
Appropriate lab clothing
No Phones!
Week Lab
Introduction, Safety, Group assignments
Introductory Lab
2 Hardness (1&2, 3&4)
3 Metallography (3&4, 1&2)
4 Determination of Case Depth (1,2,3,4)
5 Tensile Properties of Metals (2,3,4,1)
6 Jominy Test for Comparing Heat Treatability of Steels (3,4,1,2)
7 Identifying the Impact Transition Temperature of Steel (4,1,2,3)
8 Rate Dependence of Thermoplastic Properties (1,2,3,4)
9 Cure Optimization of Thermosetting Adhesives (2,3,4,1)
10 Fabrication and Testing of Composite Materials (3,4,1,2)
11 Thermal Analysis of a Polymer (4,1,2,3)
12 Material Testing Assignment
13 Material Testing Assignment
14 Final Project Presentations
Rotation V - Final Project
Rotation IV - Characterization of Polymers
Rotation III - Characterization of a Metal/Alloy
1
Rotation II - Analysis of Failing Steel Bolts
Rotation I - Introduction
Reports (50%)
Attendance (10%)
Lab Notebook (15%)
Final Project (15%)
Quizzes (10%)
Reports (50%)
Formal Lab Report Multiple pages
Extensive analysis
Very thorough discussion
Relation of results to real world applications
Technical Memo 1 page only
Only necessary analysis
Brief discussion
Simple conclusions
Cover Page
THE UNIVERSITY OF TEXAS PAN-AMERICAN
COLLEGE OF ENGINEERING AND COMPUTER SCIENCE
DEPARTMENT OF MECHANICAL ENGINEERING
MECE 2140
MATERIALS LABORATORY
SEMESTER/YEAR
LABORATORY SECTION #
GROUP #
LABORATORY ANALYSIS FOR
_____________________________________
PREPARED FOR:
SAMANTHA RAMIREZ, MSE
BY:
YOUR NAME GOES HERE
____________________________________
DATE PERFORMED: _________________________
DUE DATE: _________________________________
DATE RECEIVED: ___________________________
DR. JAVIER ORTEGA
Cover Page
Background & Theory
Introduce the theory for the lab you conducted
Use what you have learned in class and previous classes
Provides the reader with a reason to read your report
Helps the writer to better understand the theory behind the lab performed
Cover Page.
Background & Theory
Objective
Should be a concise, single paragraph stating the purpose of the experiment ◦ What was the purpose of the lab you performed?
◦ What was supposed to have been achieved?
◦ What were you trying to do?
Reason for conducting the experiment
Must be stated in YOUR OWN WORDS!
Cover Page
Background & theory
Objective
Experimental Setup & Procedures
Should be a short description of the experimental procedure ◦ What steps did you take to successfully perform the
lab?
◦ What ASTM Standard was followed?
◦ This section can be in bullet or paragraph format.
◦ Be sure to include all names of machines or instrumentation used.
Be detailed but not exhaustive.
Cover Page
Background & theory
Objective
Experimental Setup & Procedures
Results & Discussion
“Factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation.”1
Pertinent data should be presented in a clear, concise chart.
All columns or rows should have headings and must include units!
1 http://www.merriam-webster.com/dictionary
“An examination of a complex, its elements, and their relations.”1
Briefly describe the theoretical analysis and data analysis procedures and present and discuss your results ◦ Include any and all equations used to perform the
analysis. ◦ Chart and/or graphs are absolutely necessary If equations were utilized, both charts and graphs are
needed.
Discussion of analysis and results after each graph or chart
Figure 1: This graph depicts how well a student will do on an exam based on the amount of time spent studying or watching TV.
0
50
100
0 5 10
Exam
Gra
de (Poin
ts)
Time (Hours)
How Well a Student Will do on an
Exam
Studying
Watchin TV
Captions for all graphs,
charts, figures, etc.
Cover Page
Background & theory
Objective
Experimental Setup & Procedures
Results & Discussion
Conclusions
What were the results from the analysis that was performed on your data?
How do your results compare to theory learned in class? ◦ Tie your results to topics in class and to
everyday situations.
Do not express feelings in the conclusions.
Be technical with your conclusions.
Use your knowledge to make connections and decipher data.
Cover Page Background & theory Objective Experimental Setup & Procedures Results & Discussion Conclusions References Appendix
All sources should be referenced. ◦ Equations, definitions, explanations, etc.
All raw data not included in the lab report should be in the appendix.
Brief discussion of your reason for and process of completing the experiment.
Pertinent data and analysis with captions.
Discussion and Conclusions in 1 paragraph.
Objective and Procedures
Data
Analysis
Conclusions
Total of 10 Written Reports due 2 weeks after the end of the rotation. ◦ Rotation I: Introduction (Due week of Feb 6) ◦ Rotation II: Analysis of Failing Steel Bolts (Due
week of Feb 20) ◦ Rotation III: Characterization of Metals (Due
week of March 27, after spring break) ◦ Rotation IV: Characterization of Plastics (Due
week of May 1st)
You will turn in a hard copy at the beginning of class.
20 points off per day
No written reports accepted after it is 1 week late. You will receive a 0 for that report.
Week Lab Output Due
Rotation I - Introduction
1 Introduction, Safety, Group assignments
Introductory Lab Report 2/6
Rotation II - Analysis of Failing Steel Bolts
2 Hardness (1&2, 3&4) Memo 2/20
3 Metallography (3&4, 1&2)
Rotation III - Characterization of a Metal/Alloy
4 Determination of Case Depth (1,2,3,4) Memo
3/27
5 Tensile Properties of Metals (2,3,4,1) Memo
6
Jominy Test for Comparing Heat Treatability of Steels (3,4,1,2) Memo
7
Identifying the Impact Transition Temperature of Steel (4,1,2,3) Report
Rotation IV - Characterization of Polymers
8 Rate Dependence of Thermoplastic Properties (1,2,3,4) Report
5/1 9 Cure Optimization of Thermosetting Adhesives (2,3,4,1) Memo
10 Fabrication and Testing of Composite Materials (3,4,1,2) Memo
11 Thermal Analysis of a Polymer (4,1,2,3) Memo
Rotation V - Final Project
12 Material Testing Assignment
13 Material Testing Assignment
14 Final Project Presentations Report & Slides
5/8
Reports (50%)
Attendance (10%)
Will be taken every week
If late, you will be counted absent.
1 absence the entire semester ◦ Only excused absences can be made up
◦ Any more than 1 absence, you will be dropped.
Do not leave the laboratory during lab time.
Remain with your group at all times.
Written Reports (50%)
Attendance (10%)
Lab Notebook (15%)
Must be graded after each lab before you leave ◦ Forgetting your notebook is not an excuse.
You will not receive credit if you forget it.
Only write in ballpoint pen Must be legible Scratch out with one line Do not write on scratch paper and
recopy later. Make mistakes
A detailed record of all experimental work which includes study rationale, materials, methods, models, raw experimental data, incorrectly performed work, interpretations, calculations, conclusions, and future work.
Ensures that future workers may repeat the previously done work.
Verifies unclear results and intellectual property.
Written Reports (50%)
Attendance (10%)
Lab Notebook (15%)
Quizzes (10%)
Cover laboratory procedures and safe operating procedures for the lab you will be performing that day
Must be completed in BlackBoard Learn before lab time each week.
Reports (50%)
Attendance (10%)
Lab Notebook (15%)
Quizzes (10%)
Final Project/Presentation (15%)
Research project of your choosing but approved by me
Proposal due by week of March 27, 2015
Final project presentation week of May 8, 2015
Final project report due at time of presentation
DO NOT CHEAT!
If caught, you will: ◦ Lose credit for the work
◦ Be reported to the department chair, Dr. Freeman
◦ Be reported to the Dean of Students
Bronc Honor Code ◦ Sign last page of syllabus
Sign & turn in next week for a quiz grade.
Fire Alarm
Fire extinguisher for small fires
No food or drinks!
Locate the following: ◦ Nearest safety exit
◦ Nearest fire extinguisher
◦ Nearest telephone
◦ Electrical power panels
◦ Nearest shower and eye wash station
Page 12
Safety Glasses
No long sleeve shirts, jackets, sweaters, etc.
Tuck in shirts (aprons available)
Closed toe shoes
Full length pants (jeans preferred)
No jewelry
Tie back long hair
Wear caps backwards
Do not use it unless you know how it works
No sitting while machines are running
All blades must be at a complete stop before opening
Clean up when you are done
Return all tools
Know where the emergency stop button is
You must fix any safety violation IMMEDIATELY.
NO HORSEPLAY
Any extremely careless behavior that endangers the safety of others will result in you immediately losing lab privileges for the semester
Safety quiz next week!
◦ All information in lab procedures
Units!
Statistics
Property Unit Symbol Property Unit Symbol
Distance
Meter m
Energy
Joule J
(=kg∙m2/s2)
Foot ft Foot-pound force ft∙lbf
Time
second s Power Watt W (=kgm2/s3)
minute min
Temperature
Celcius °C
Mass kilogram kg Farenheit °F
pound mass lbm Kelvin K
Velocity m/s
Hardness
Rockwell HR(Scale)
in/min Vickers kg/m2
Acceleration m/s2 Brinell HB
lbm/ft2 Pressure (Stress)
Pascal Pa
(=kg/m∙s2)
Force Newton N (=kg∙m/s2) psi psi (=lbf/in2)
Pound force lbf
Prefix Symbol Value Prefix Symbol Value
deci d 10-1 deka da 101
centi c 10-2 hecto h 102
milli m 10-3 kilo k 103
micro μ 10-6 mega M 106
nano n 10-9 giga G 109
pico p 10-12 tera T 1012
Become familiar with using various measurement techniques and a material testing machine.
Explore the relationship between atomic bonds and material properties.
Primary ◦ Ionic
Adjacent and oppositely charged ions
High bonding energies
◦ Covalent
Sharing of electrons between neighboring atoms
◦ Metallic
Sharing of valence electrons in metallic solids
◦ Mixed (Polar covalent)
Has both ionic and covalent properties
Secondary ◦ Van der Waals
Ceramics ◦ Ionic &/or Covalent
Metals ◦ Metallic
Polymers ◦ Covalent & van Der Waals
Hardness
Thermal Expansion
Thermal Conductivity
Melting