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It should be noted that Load - Extension ( displacement ) diagram is more advantages than stress- strain diagram . It is so because any "foot correction' ' (initial slackness ) cannot be complete corrected to arrive at proof stress or elastic limit . Since Y & x axis values are divided by area & gauge length respectively thus correction is erroneous due to divisor .Thus Load - Extension is more fundamental to arrive at a correct straight line to get off set value

J. Sreenivas

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11y ago
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Q: What are the advantages of a stress-strain diagram over a load-extension diagram for showing the result of a test?
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