A procedure to calculate the yield strength and the ultimate tensile strength of the material. The procedure begins with a specially prepared specimen, usually 8 inches long and with a 0.50-inch reduced section in the middle. The specimen is put into a machine which grips the ends and then pulls the specimen apart. As the machine does this, it measures the load required to make the material go from the elastic to plastic deformation and the load required to actually break the material.
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From the Web: Steel making, fabricating have changed; mfg & politics; 3-D printing semi-solid metals - by Vicki Bell Highlights for fabricators from the past week’s Web articles— AISC VP sets the record straight about today’s steel production; what skills today’s factory workers need; manufacturing and politics, and developments in 3-D printing.
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