Mechanical Engineering ETDs
Publication Date
4-4-1969
Abstract
The present investigation establishes a cumulative-damage criterion for specimens subjected to reversed cyclic dynamic shear loads. The empirical equation is found to be:
where
= the change in plastic shear strain at each loading.
= the ultimate shear strain at single loading.
= the empirical exponent to be determined.
Specimens of 6061-T6 aluminum alloy were tested under reversed shear loadings from 1 to 22 applications prior to fracture. The amount of shear deformations was measured at the center part of the critical section. The data was analyzed with the aid of a digital computer. The exponent p in the power function was statistically determined to be 1.26 for dynamic tests and 1.06 for static tests.
Degree Name
Mechanical Engineering
Level of Degree
Masters
Department Name
Mechanical Engineering
First Committee Member (Chair)
Frederick Dsuin Ju
Second Committee Member
William Ernest Baker
Third Committee Member
James Tsu-Ping Yao
Fourth Committee Member
Youn-Chang Hsu
Document Type
Thesis
Language
English
Recommended Citation
Liu, Teh T.. "A Criterion for Dynamic Low-Cycle Shear Fracture." (1969). https://digitalrepository.unm.edu/me_etds/233
