in this paper, the behaviour of buried pipelines under the effect of propagation of seismic waves and faulting is studied seperately. the stability of this type of structure was first studied by using three different methods proposed by newmark-hall, kenndey et al. and wang - yeh under the effect of ground faulting. by parametric study, the effect of soil types, size of pipeline, depth of embed...

The application of the TR-BDF2 method to second order problems typical structural mechanics and seismic engineering is discussed. A reformulation this presented, that only requires solution algebraic systems size equal number displacement degrees freedom. linear analysis numerical experiments on relevant benchmarks show superior in terms accuracy efficiency classical Newmark its generalizations.

A novel enriched finite element method (EFEM) was employed to analyze the transient wave propagation problems. In present method, traditional approximation by employing appropriate interpolation covers. We mathematically and numerically showed that EFEM possessed important monotonic convergence property with decrease of used time steps for problems when unconditional stable Newmark integration ...

A simulation of the NC-shape grinding process of free formed surfaces is considered. A central issue in the simulation is the numerical solution of dynamic Signorini problems. Here, space adaptive techniques for such problems are discussed. The Newmark method in time and low order finite elements in space are used for discretisation. For the global discretisation error in space, an a posteriori...

Mothers who undergo normal delivery during the COVID-19 pandemic can experience severe anxiety because Corona Virus Disease-19 virus also cause respiratory infections, such as lung infections (pneumonia). This attack anyone, including pregnant women and babies is a potential or actual threat to person's integrity that evoke physiological psychological stress reactions. The purpose of this study...

This study investigates message change in vocative sentences in the glorious Qur'an when translated to English. The present study aims to find the answers to the following research question: “Do the syntactical and grammatical changes affect the quality of the rhetorical message when translating vocative sentences of qur’anic texts [source language text (ST)] to English [target language text (T...

A series of nonlinear, explicit finite difference analyses were performed to determine the dynamic response of a cantilever retaining wall subjected to earthquake motions. This article outlines the calibration and validation of the numerical model used in the analyses and comparisons are presented between the results from the finite difference analyses and results from simplified techniques for...