CRACKS GROWTH BEHAVIOR THROUGH WALL PIPES UNDER IMPACT LOADING AND HOT ENVIRONMENT
Keywords:
cracks, crack initiation, crack growthAbstract
This search concerns study the crack growth in the wall of pipes made of low carbon steel under the impact load
and using the effect of temperature (50°C). The environmental conditions were controlled using high accuracy digital control
with sensors. The pipe has a crack already. The test was performed and on two type of specimens, one have length of 100cm
and other have length 50cm. The results were, when the temperature was applied to the pipe, the crack would enhance to
growth (i.e. the number of cycles needed to growth the crack will reduce). In addition, when the test performed on the
specimens of length 50cm the number of cycles needed to growth the crack is increase due to the effect of bending stress on
the pipes.