mechanics of solid lab

data.rtf

DATA HAS BEEN ALTERED-- this is just an example! ***not correct area

rubber band area (m2)*** 0.000004

L0=5.5 cm MASS(g) delta (cm) Force (N) strain stress (MPa)

L1 7.6 50 2.1 0.4905 0.168 0.0000002

L2 8.8 70 3.3 0.6867 0.264 0.000002

L3 9.6 90 4.1 0.8829 0.328 0.000002

narrow rubber

L0=5.5 cm MASS(g) delta (cm) Force (N) strain stress (MPa)

L1 6.8 50 1.3 0.4905 0.14606742 0.0000001

L2 7 70 1.5 0.6867 0.16853933 0.000001

L3 7.4 90 1.9 0.8829 0.21348315 0.000001

several rubber

L0=5.1 cm MASS(g) delta (cm) Force (N) strain stress (MPa)

L1 6 100 0.9 0.981 0.11111111 0.00000012

L2 6.4 150 1.3 1.4715 0.16049383 0.0000012

L3 7.1 200 2 1.962 0.24691358 0.0000012

wide rubber

L0=7.6 Cm MASS(g) delta (cm) Force (N) strain stress (MPa)

L1 9.1 100 1.5 0.981 0.000022

L2 10.3 150 2.7 1.4715 0.000022

L3 12.1 200 4.5 1.962 0.000022