This document presents the results of experiments testing the shape memory and recovery properties of a Pu-Pvac 50-50 alloy. The alloy was deformed to various strain percentages (200%, 300%, etc.) and its stress-strain behavior was plotted on graphs. Additional graphs show the alloy's recovery ratio and shape fixity at different deformation levels, with recovery ratios generally above 95% and shape fixity above 98%. Compiled data tables provide specific recovery and shape fixity values for deformation levels from 200-500%. Overall, the experiments demonstrate the Pu-Pvac 50-50 alloy's ability to recover its original shape after significant deformation.

1. Shape Memory
By: Mitchell Baller

2. Raw Data
0 50 100 150 200
-1
0
1
2
3
4
5
6
7
Stress(MPa)
Strain (%)
"Test 1"
"Test 2"
"Test 3"
"Test 4"
"Test 5"
Stress vs Strain, Pu-Pvac 50-50, 200 % Strain
0 50 100 150 200 250 300
0
1
2
3
4
5 Stress vs Strain, Pu-Pvac 50-50, 300%
Stress(MPa) Strain (%)
Test2
Test1
Test3
Test4
Test5
0 100 200 300 400
0
1
2
3
4
Stress vs Strain, Pu-Pvac 50-50, 400 % Strain
Stress(MPa)
Strain (%)
"Test1"
"Test2"
"Test3"
"Test4"
"Test5"

3. Recovery Ratio
0 100 200 300 400 500
0
2
4
6
8
10
Stress(MPa)
Strain (%)
Test1
Test2
Test3
Test4
Test5
Stress vs Strain, Pu-Pvac 50-50, 500%
recovery of the material

4. Shape Fixity
0 100 200 300 400 500
0
2
4
6
8
10
Stress(MPa)
Strain (%)
Test1
Test2
Test3
Test4
Test5
Stress vs Strain, Pu-Pvac 50-50, 500%
Shape fixity

5. Compiled Data
200 96.711 99.513 99.703 99.734
300 98.433 96.77 98.917 99.224
400 94.378 97.595 98.132 98.42
500 95.685 97.888 99.256 99.46
% Def Recv 2 Recv 5 S.Fix 2 S.Fix 5
200 250 300 350 400 450 500
94
95
96
97
98
99
Recovery Ratio for Cycle 2
Deformation (%)
RecoveryRatioforCycle2(%)
Recovery Ratio vs % Deformation for Cycle 2
0
5
10
15
20
25
30
35
YAxisTitle
200 250 300 350 400 450 500
96.5
97.0
97.5
98.0
98.5
99.0
99.5
Recovery ratio vs % Deformation for Cycle 5 Recovery Ratio for Cycle 5
Deformation (%)
RecoveryRatioforCycle5(%)
0
5
10
15
20
25
30
35
YAxisTitle
200 250 300 350 400 450 500
98.0
98.2
98.4
98.6
98.8
99.0
99.2
99.4
99.6
99.8
Shape Fixity vs % Deformation for Cycle 2 Shape Fixity Ratio 2
Deformation (%)
ShapeFixityRatio2(%)
0
5
10
15
20
25
30
35
YAxisTitle
200 250 300 350 400 450 500
98.4
98.6
98.8
99.0
99.2
99.4
99.6
99.8
Shape Fixity vs % Deformation for Cycle 5 Shape Fixity
Deformation (%)
ShapeFixityRatio5(%)
0
5
10
15
20
25
30
35
YAxisTitle