From the experiment, a throttle switch back and forth in a continuous cycle of test material until fracture occurs, or lack of.Can be seen that the test by using a test mass kg 15.036 appears that material test pieces of material, so the damage using a slower period of mass 20 kg? Due to the least mass causes gravity to test material at least as well, and the result is less Stress, according to which the Stress is less, it will make the material fatigue occurs slowly, which causes the material to fracture or broken down.
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