Calculate the range of allowable currents in problem 3143, Civil Engineering

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Calculate the range of allowable currents in problem 3143

Calculate the range of allowable currents in Problem 31.43 if the temperature should be between 0.7 and 0.8 times the melting temperature of copper. Repeat this problem for carbon steel.

Problem 31.43

Two flat copper sheets (each 1.0 mm thick) are being spot welded by the use of a current of 7000 A and a current flow time of 0.3 s. The electrodes are 4 mm in diameter. Estimate the heat generated in the weld zone. Assume that the resistance is 200 μ Ω .

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Civil Engineering: Calculate the range of allowable currents in problem 3143

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Civil Engineering: Calculate the range of allowable currents in problem 3143

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