It could be used to determine stress-strainrelation in oedometer test.
该方法可用于电压表试验中应力-应变关系的确定。
2
Then the increment stress - strainrelation of plasticity on the corner of the yielding surface is presented by the Koiter theory which is connected with the above hardening function.
According to the stress-strainrelation and disposal mode of steel in the tensional region of section from the experimental results of other papers, the design formula is concluded.