Suggested Steel Ductility Requirements
Test evidence is presented on the performance under tension of perforated plates, bolted connections and formability of corners, supplemented by an elastic-plastic analysis of perforated...

Elasto-Plastic Analysis of Coupled Shear Walls
An elasto-plastic procedure for analysis of coupled shear walls by assuming a partial or complete collapse mechanism is presented. The complete collapse mechanism is assumed to occur when...

Limit Analysis of Ductile Fiber-Reinforced Structures
A continuum theory of plastic behavior of fiber-reinforced materials, presented earlier by the writers, is outlined. The theory, valid for general states of stress, is based on a maximum...

Use of Irradiation in Plastic Wastes Disposal
The feasibility of utilizing irradiation to assist in plastic waste disposal was investigated. This was based on the observation that most plastic materials become brittle upon irradiation....

Failure of Unidirectional Composites in Tension
Two approaches were used to predict the tensile strength of unidirectional fibrous composites. The first, based on a criterion of maximum tensile traction on the failure plane, was applied...

Connections in Thin Low-Ductility Steels
Bolted and fillet welded connections fabricated from flat sheets of thin low-ductility low carbon steels were tested as part of a research program investigating the influence of ductility...

Effects of Reinforcements on Ductility of Concrete
To study and compare the reinforcing action of stirrups, randomly distributed short fibers, and compression reinforcement in improving ductility of plain concrete, over-reinforced and...

Practical Selection of Material for Large Water Pipe
Practical considerations are compared in selecting materials for water pipe 30 in. and larger in size. Materials are steel, ductile-iron and reinforced concrete as covered by American...

Two Nonlinear Beams With Definitions of Ductility
Two different models of nonlinear beams which can be used to represent the girders and columns of a nonlinear multistory structure are described and compared. One beam model is limited...

Earthquake Design Criteria for Subways
Earthquake effects on underground structures comprise faulting and shaking. The design criterion for underground structures is ductility to absorb imposed distortions without losing capacity...

Earthquake Response of a Ramberg-Osgood Structure
Response of a single-degree-of-freedom Ramberg-Osgood type structure subjected to strong-motion earthquakes as well as to steady-state oscillations is studied. The Ramberg-Osgood system...

Nonlinear Earthquake Behavior of Tall Buildings
A digital-computer study was made on the response of typical high-rise buildings to strong earthquake motions. Frame components were assumed to have bilinear moment-curvature properties,...

Thermal Shock Effects on Brittle-Ductile Materials
Thermal shock has different effects on brittle and ductile materials. The main reason may be explained by strains and energy. A brittle material can endure little strain before rupture....

Limit Design by Successive Moment Distribution
The limit design method presented has the novel feature of combining the techniques of the plastic design theory; determining the moment capacities and the relative moments of inertia...

Plastic Hinging in Reinforced Concrete
The complete load-deflection history of 18 beams tested during 1952-54 and 18 beams tested during 1959-61 at the Univ. of Ill. allowed a study of the factors which contribute to ductility....

Studies of the Ductility of Steel Structures
Part of the energy of an ultimate loading or of a severe earthquake shock is usually absorbed by the inelastic deformation of the structural frame. In order to assess the inelastic deformability...

Effects of Cold-Straining on Structural Sheet Steels
Tension and compression tests, transverse to and in the direction of plastic prestretching, indicate that cold stretching has pronounced effects on the mechanical properties of structural...

Brittle Fractures Explained by Negative Residuals
Hypothesis presented is that residual lateral compressive stresses may suppress ductility across notch and permit cleavage fracture to occur; theoretical explanation is given; tests made...

Physical Metallurgy and Mechanical Properties of Materials: Ductility and the Strength of Metallic Structures
At Symposium on Physical Metallurgy and Mechanical Properties of Materials, held by Eng Mechanics Div for summarizing current state of knowledge and some most recent developments in understanding...

Strength and Ductility of the Copper-Tin-Zinc Alloys
DataNotAvailable...

 

 

 

 

Return to search