Higher Order Instabilities in Single Mode Structures

Creep of Pipes Under Axial Force and Twisting Moment
The load-deformational behavior of twisting of pipes in the presence of axial force is examined. Based on the small deformation theory, charts and curves, which relate the twisting moment,...

Beam-To-Column Web Connection Details
For a beam-to-column web connection where the beam is attached to the column perpendicular to the plane of the column web, the theoretical maximum strength of this beam and column assemblage...

Plastic Rotation of Composite Beams
The sagging rotation capacity of composite beams consisting of a concrete slab attached to a steel beam by a shear connection is studied. Tests are reported on four full-scale beams in...

The Booming Business in Wick Drains
Prefabricated vertical wick drains, used to improve weak, saturated soils, have been used in Japan and Europe for 20 years but were introduced in the U.S. only four years ago. Since then...

Application of Plasticity and Generalized Stress-strain in Geotechnical Engineering
This volume on the application of plasticity and generalized stress-strain in geotechnical engineering is divided into two main sections, with an introduction on soil constitutive model...

Elastic and Plastic Strain Properties of Sand
This paper describes the results of tests using conventional triaxial apparatus with loading and unloading, on samples of medium sand with two different unit weights. The method is used...

Progressive Collapse of Rigid-Plastic Circular Foundations
The paper presents an analytical study of the behavior of a rigid-perfectly plastic circular foundation plate indenting an elastic two-parameter soil layer (Vlasov soil) under the action...

Emerging High Performance Structural Plastic Technology
Structural plastics have forced their growth by better performance over conventional materials in hostile environments. Demand by industry for increased life of process equipment and structures...

Optimum Design of Prestressed Concrete Tension Members
A systematic procedure is proposed for the design of prestressed concrete tensile members. The design criteria considered include maximum allowable compression, ultimate strength, safety...

Lower Bound Limit Design of Rectangular Slabs
A plastic method of design of rectangular slabs based on lower bound solutions of collapse has been developed. The slab is divided into middle and end zones so as to reinforce for beam...

Plastic Models for Structural Analysis: Facts and Fallacies
Laboratory and field measurements have shown that scale plastic models can be used to measure static deflections and stress levels natural frequencies, response levels, mode shapes and...

Neutral Holes: Theory and Design
As previously demonstrated it is possible to leave the geometry of an opening unspecified and invert the standard problem in elasticity to solve for shapes which achieve an optimum design...

Repetitive Load Deformation of Cohesionless Soil
Presented is a simplified procedure for obtaining material characterization of free draining cohesionless soils for use in calculating permanent deformations of transportation support...

Optimal Grillage Layout for Given Natural Frequency
The problem of minimizing the volume of structural material of an elastic grillage subject to a prescribed value or the fundamental frequency of free transverse vibrations, is considered....

Plastic Design under Multiple Loads
A mathematical model and a solution algorithm are developed for the rigid-plastic optimal design of skeletal structures under multiple loading conditions. Iterative linear programming...

State-of-the-Art Report Limit Equilibrium Plasticity in Soil Mechanics

A Plasticity Model for the Load Unload Behaviour of Sand

Soil as an Anisotropic Kinematic Solid

Analysis of Soil Response with Different Plasticity Models

 

 

 

 

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