Lab Experiment # 10Tensile Testing of PolymersThe City College of New YorkDepartment of Mechanical EngineeringMahbub RobinSection 1(2PS) Group 2Prof. Jackie LiDecember 1, 2015Objective:The objective of this experiment is to understand the behavior of the molecular structure ofpolymers when subjected to mechanical loading. We are also comparing the mechanical properties ofpolymer with those of plai
...[Show More]
Lab Experiment # 10
Tensile Testing of Polymers
The City College of New York
Department of Mechanical Engineering
Mahbub Robin
Section 1(2PS) Group 2
Prof. Jackie Li
December 1, 2015
Objective:
The objective of this experiment is to understand the behavior of the molecular structure of
polymers when subjected to mechanical loading. We are also comparing the mechanical properties of
polymer with those of plain-carbon steel and aluminum obtained in the first experiment.
Equipment:
INSTRON testing machine with environmental chamber
Materials:
Nylon
Acrylic
Experimental Procedure:
1. For the Acrylic specimen in the environmental chamber at 60oC, similar procedures as
experiment 1 should be followed from steps 1-4.
2. Next, the same procedure for the PMMA specimen at the room must be repeated.
3. After that, we compared the two curves each specimen at different temperature.
4. Step 2 of this experiment was repeated with slower displacement rate. We analyzed the
effects of strain rate on the yield strength and ultimate strength of the polymers.
5. The entire experiment was repeated using different strain rates for Nylon at room
temperature.
6. Finally, we compared the mechanical properties of polymers with those of metals in
experiment 1.
[Show Less]
-preview.png)
