New Strength Criterion Based on Relationship between Elastic and Plastic Strains
Due to the limitations of the existing strength theories or criteria, the phenomenon of material failure cannot be not fully explained, which makes material strength criterion to always be an important direction to study. Reference  found that there was a certain relationship between elastic strain and plastic strain, and a preliminary summing-up of this relationship had been done.Based on the relationship, the dominant factor of material failure has been analyzed, and a new strength criterion has been established with plastic strain as the control value. The new criterion is of simple expression, and can be used to explain very well some experiment phenomena.
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Y. Li "New Strength Criterion Based on Relationship between Elastic and Plastic Strains", Advanced Materials Research, Vols. 146-147, pp. 166-169, 2011