seismic piezocone device (scptu) together with resonant column and cyclic triaxial test apparatus are employed to measure small strain shear modulus (g0) of carbonate sandy and clayey soils of southern coasts of iran. a large area of southern regions of iran is formed from clay, silt and sand. in this study, maximum shear modulus that is derived from both field (by seismic piezocone) and labora...

an energy based damage index based on a new nonlinear finite element (fe) approach applicable to rc structures subjected to cyclic, earthquake or monotonic loading is proposed. the proposed method is based on the evaluation of nonlinear local degradation of materials and taking into account of the pseudo-plastic hinge produced in the critical sections of the structure. a computer program is dev...

In this paper we describe an eecient parsing model for monotonous xed-mode DCGs, including traversing of cyclic terms. The algorithm can be viewed as an extension of the classic push-down automaton model in dynamic programming along with the incorporation of a mechanism for detecting and traversing cyclic trees. Details of implementation and experimental tests are described. Experimental result...

A nanocomposite of polyaniline (PANI) with natural clinoptilolite (Clino) was prepared by chemical oxidative polymerization of anilinium cations in the presence of clinoptilolite dispersion. The PANI/Clino nanocomposite was characterized using FTIR, XRD and SEM techniques as well as electrical conductivity measurement using four point probe technique. Cyclic voltammetry analysis was used to inv...

This paper presents the results of a series of hollow cylinder tests carried out to investigate the role of drainage conditions on the response of railway track foundation materials during cyclic loading. Three sand–clay mixes were tested. It was found that, below a certain cyclic shear stress threshold, and depending on the drainage conditions, changes in principal stress direction should not ...

It is of great interest to describe and quantify the evolution microstructure for a better understanding rock deformation processes. In this study, 2D images salt are analyzed at several stages consolidation tests cyclic compression magnitude orientation solidity, coordination, local solid volume fraction, crack volume. both tests, aggregates achieved by grain rearrangement greater than that an...