Peridynamics is a nonlocal theory for dynamic fracture analysis consisting in second order time partial integro-differential equation. In this paper, we consider nonlinear model of peridynamics two-dimensional spatial domain. We implement spectral method the space discretization based on Fourier expansion solution while Newmark-? marching. This computational approach takes advantages from convo...

The subsea wellhead is a key equipment for offshore oil and gas development. Traditional research focuses on static stability of system in which the dynamic effect neglected. In this paper, drilling platform/riser/wellhead/conductor fully coupled model established to evaluate system. An algorithm solving proposed based finite element method Newmark integral method. A analysis program also devel...

This paper proposes a new element for modeling the energy-dissipation coupling beam to analyze coupled shear wall structure under seismic loading. The includes 2 rigid beams and an energy dissipation device in middle. stiffness matrix is derived based on principles of nonlinear mechanics. A procedure incremental-iterative solution built using Newmark method adopted solving equation motion. comp...

This study aims to explain the techniques and assessment of quality translation imperative sentences in book Al-Fatḥu Ar-Rabbānī Wal-Faiḍu Ar-Raḥmānī by Sheikh Abdul Qadir Al-Jaelani. research is a part criticism using descriptive analysis method. uses qualitative approach analyzing Newmark's theory. In addition, quantitative also used assessing evaluation theory Nababan. The results this indic...

In the present article two-dimensional hybrid equilibrium element formulation is initially developed, with quadratic, cubic, and quartic stress fields, for static analysis of compressible quasi-incompressible elastic solids in variational framework minimum complementary energy principle. Thereafter, high-order developed dynamic Toupin principle, which form Hamilton The Newmark time integration ...

This paper presents a finite element formulation for the dynamics analysis of the steady and transient states of a nonlinear piezoelectric beam. A piezoelectric beam with damping is studied under harmonic excitation. A numerical method is used for this analysis. In the paper, the central difference formula of four order is used and compared with the central difference formula of two order in th...

The conventional method to evaluate earthquake induced permanent deformations of slopes is the one proposed by Newmark. In this paper, permanent displacement of slopes is studied using a combination of distinct element and finite difference methods and the results of these numerical evaluations are compared with those of the Newmark's approach. Several parameters involved, including peak ground...

At present, there are still some gaps in the theoretical calculation of permanent displacement multi-stage loess slope under action earthquake. Therefore, this paper firstly uses GEO-Studio finite element software to explore influence comprehensive rate on when each grade changes and stage changes. The results show that it is feasible use calculate sliding body On basis conclusion, order simpli...

Background: Postpartum hemorrhage is an important problem because it related to maternal health and can cause death. The definition of postpartum bleeding 500 ml or more that occurs after the baby born. In 2013, highest mortality rate in Indonesia was caused by hemorrhage, which 30.3%. most common etiology uterine atony (60%) placental complications (36%), largest factor (4%) a history previous...