Table 5: Principal stresses obtained from compression experiments on EP 280 Prepreg.

Test numberMechanical stresses [10]Residual stresses
(MPa) (MPa) (MPa) (MPa) (MPa) (MPa)

1−77.18−253.42−95.605.074.75−5.32
2−86.29−281.52−106.375.074.75−5.32
3−63.60−207.49−78.395.074.75−5.32
4−66.01−227.05−84.195.074.75−5.32
5−55.62−187.58−69.575.074.75−5.32
6−57.23−195.18−72.305.074.75−5.32
7−53.06−191.05−67.155.074.75−5.32
8−57.59−207.38−72.895.074.75−5.32
9−52.71−189.80−66.725.074.75−5.32
10−49.27−198.03−64.175.074.75−5.32
11−48.49−194.87−63.155.074.75−5.32
12−29.40−154.37−45.245.074.75−5.32
13−24.03−126.38−37.125.074.75−5.32
14−30.58−160.81−47.235.074.75−5.32
1515.19−137.00−23.555.074.75−5.32
1613.90−125.36−21.555.074.75−5.32
1714.73−132.91−22.855.074.75−5.32
1822.37−134.04−22.735.074.75−5.32
1920.67−126.11−21.695.074.75−5.32