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A large plate of a brittle ceramic material contains a single edge notch. The plate is subjected to a far-field tensile load of 5 kN. The plate dimensions are: width W = 5.0 cm, height H = 6.0 cm and thickness B = 1.2 cm. The notch length a0 is 2 cm and the notch-root radius ρ = 0.5 mm
(a) Estimate the minimum length of the pre-crack one has to introduce at the tip of the notch to avoid possible effects of the strain field of the notch on subsequent fracture behavior.
(b) Calculate the stress intensity factors if through-thickness pre-cracks of the following lengths are introduced at the notch-tip:
(i) 10 urn,
(ii) 0.5 mm and
(iii) 3 mm
A 10cm diameter vertical tank holds 20cm of water topped with 15cm of ethyl alcohol. The cylinder is rotated about its central axis at a rotation rate of 20 rad/s. (a) What will be the shape of the air-alcohol and alcohol-water interfaces (include ..
How would you plan to find the forces in members DB and FB? Do not solve for these forces, rather tell me your thought process.
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