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State the maximum acceptable thickness of the brake disk - Leaving Cert Engineering - Question g - 2018
Question g
State the maximum acceptable thickness of the brake disk. (g) The shell of the American football helmet shown is manufactured from carbon fibre and must resist impa... show full transcript
Worked Solution & Example Answer:State the maximum acceptable thickness of the brake disk - Leaving Cert Engineering - Question g - 2018
Step 1
Describe one suitable impact test.
Answer
One suitable impact test for the American football helmet made of carbon fibre is the Izod test. In this test:
- Striking Energy: The test uses a specified striking energy of 167 joules.
- Test Specimen Position: The test specimen is placed in a vertical position.
- Clamping Method: The specimen is clamped at one end.
- Notch Orientation: The notch of the test piece is faced towards the pendulum.
- Result Measurement: After the impact, the distance the pendulum travels indicates the toughness of the material, providing valuable information about its ability to withstand impacts.