Engineering, 16.06.2021 18:40 F00Dislife
The fracture strength of glass may be increased by etching away a thin surface layer. It is believed that the etching may alter surface crack geometry (reduce the crack length and increase the tip radius). Compute the ratio of the etched and original crack-tip radii for a fourfold increase in fracture strength if half of the crack length is removed.
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Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
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The fracture strength of glass may be increased by etching away a thin surface layer. It is believed...
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