STUDY ON FAILURE CRITERION OF CONCRETE UNDER COMBINED STRESS (Part III)

a study on construction of iranian life tables: the case study of modified brass logit system

چکیده ندارد.

New empirical failure criterion for shale

A new failure criterion was presented to predict the ultimate strength of shale under the triaxial and polyaxial state of stress. A database containing 93 datasets was obtained from the results of the uniaxial, triaxial, polyaxial compressive tests, an indirect tensile test was collected from reliable references, and this test was carried out on the shale samples taken from the southwestern oil...

Mammography; Part III

From the Book of Mammography by Dr. Zabihollah Arnavaz - Head of Radiology Department of Jorjani Hospital, National University of Iran.

Study on Surface Permeability of Concrete under Immersion

In this paper, concrete specimens are immersed in ultrapure water, to study the evolutions of surface permeability, pore structure and paste microstructure following the prolonging of immersion period. According to the results, after 30-day immersion, the surface permeability of concrete becomes higher as compared with the value before immersion. However, further immersion makes the surface per...

Failure design of high-rise concrete panels under fire loading