b) Destructive tensile testing on samples of two ceramic fibre composites have been used to determine their ultimate tensile stress (UTS). Sample 1 has been in use for several years (under cyclic loading), Sample 2 has just been freshly manufactured. The test results are shown in the table 1. UTS Test (MPa) Sample 1 94 Sample 2 190 Theoretical Value 210 Table 1 - Results of destructive tensile tests i. The test shows that Sample1 has clearly degraded, discuss the possible caused that would cause this to happen. ii. Sample 2 is also lower than the expected theoretical value, what factors may have contributed to the lower UTS