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(Solved): For aluminium alloys, the stress-strain relationship can often be written on the form e=0 ...




For aluminium alloys, the stress-strain relationship can often be written on the form
\[
\sigma_{e}=\sigma_{0}+Q\left(1-\exp
For aluminium alloys, the stress-strain relationship can often be written on the form where and are material parameters. a) Use this stress-strain relationship and find the strain (expressed using the parameters) when necking occurs under uniaxial tension. b) Express the tensile strength, . i.e. the engineering stress at maximum force in the specimen, using the parameters and .


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a) Explanation:Necking occurs when the strain ?n reaches a critical value ?c. At this point, the stress ?e no longer increases and begins to decrease
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