Fabrication of huge penstocks with 70, 80kg/mm2 tensile strength steel

Yield & Tensile Strength of Steel & Aluminium Using Microindentation

RELATIONSHIP OF TENSILE STRENGTH OF STEEL FIBER REINFORCED CONCRETE BASED ON GENETIC PROGRAMMING

Estimating mechanical properties of concrete before designing reinforced concrete structures is among the design requirements. Steel fibers have a considerable effect on the mechanical properties of reinforced concrete, particularly its tensile strength. So far, numerous studies have been done to estimate the relationship between tensile strength of steel fiber reinforced concrete (SFRC) and ot...

Bond of High Strength Concrete with High Strength Reinforcing Steel

This paper presents a study about the bond of high strength concrete with high strength steel. Fourteen pull out tests were carried out to determine the bond. The concrete strength was about 70 MPa and the steel was a 500 MPa grade. Bar diameters used were 12, 16, 20, 25, 28, 32 and 36 mm. In order to investigate the effect of cover, each test was done twice, once in a 240 mm diameter concrete ...

Architectural fabrication of tensile structures with flying machines

The paper presents a manufacturing process for the erection of tensile structures with flying robots. Analogies are drawn to existing methods of aerial construction and robotic fabrication in architecture. Firstly, we describe a set of aerial building instructions for the vehicles, such as an assembly of a node and the erection of a link. Secondly, we investigate combinations of these instructi...

Shear and tensile plastic behavior of austenitic steel TRIP-120 compared with martensitic steel HSLA-100

Themechanical performanceofTRIP-120, a novel transformation induced plasticity steel alloy, is evaluated for different loading cases and strain rates. The performance is compared with HSLA-100, a lowalloy steel developed by the United States Navy and currently used in naval hulls. The response of these materials under uniaxial tension and shear was investigated to the point of fracture at isoth...