Anisotropic elasticity and inelasticity is of relevance in many practical applications. The Eulerian formulation for anisotropic elastic inelastic response based on microstructural vectors used here to model an injection-moulded low-density polyethylene. In contrast with Lagrangian models inelasticity, the insensitive arbitrariness reference intermediate configurations as well measures total de...

In earthquake-resistant design it is usually assumed that the structure is linearly elastic and remains linearly elastic throughout the duration of the seismic activity. This is not always a realistic assumption. Indeed, even well designed structures will yield during very strong shaking and endure stresses well beyond the elastic limit of the design material. It is neither necessary nor econom...

A triaxial constitutive model is developed for elastoplastic behavior of geomaterials, which accounts for tensile damage. The constitutive setting is formulated in the framework of continuum thermodynamics using internal variables. The interaction of elastic damage and plastic flow is examined with the help of very simple constitutive assumptions: (i) a Drucker-Prager yield function is used to ...

most of the population of nigeria is rural and agriculture is the mainstay of the impoverished people’s livelihood. this paper estimated the determinants of rural poverty in nigeria using the tobit regression model. through the multistage sampling technique, primary data were obtained from 150 rural farming households using a questionnaire. the result of tobit regression analysis shows that inc...

The D2 on Cu(111) system has for many years been one of the major benchmark systems surface scientists. Generating configurations using embedded atom method (EAM), we investigate quality chemically accurate static corrugation model (SCM) including temperature effects, with a focus random displacement approach to its distorted generation. With this EAM potential, also treat our fully dynamically...

A new methodology is proposed to simulate accelerogram which is compatible to both linear and nonlinear design spectra. For this purpose, a wavelet-based parametric characterization of earthquake accelerogram is adopted and the parameters are optimized to tune its non-stationary features. A modified form of L-P basis is considered for wavelet transform which has the unique feature to decompose ...

The application of the finite element method to the inelastic analysis of structures and continua has received considerable attention over the last fifteen years [ 1-21 ]. To a large extent, this effort has been motivated by the need to safety and economically predict material response under conditions of extreme mechanical and thermal loading. Some examples are the design and analysis of press...

The multiple impulse input is introduced as a substitute of the long-duration earthquake ground motion, mostly expressed in terms of harmonic waves, and a closed-form solution is derived of the elastic–plastic response of a single-degree-of-freedom structure under the “critical multiple impulse input.” Since only the free vibration appears under such multiple impulse input, the energy approach ...

ground vibrations during an earthquake can severely damage structures and equipments housed in them. many factors including earthquake magnitude, distance from the fault or epicenter, duration of strong shaking, soil condition of the site, and the frequency content of the motion define the properties of ground motion and its amplification. a deep understanding of the effects of these factors on...