In this paper, a stress integration algorithm is presented for a generalized elasto-plastic material model governed by the three stress invariants I1, J2 and J3. The methodology is successfully applied to the Mohr–Coulomb material model with a non-associated flow rule and implemented in ADINA.

The absolute permeability of porous media is an important parameter for various technological applications ranging from ground water hydrology to hydrocarbon recovery microfluidics. We investigate the max-flow min-cut theorem which states that maximum flow through any network exactly sum edge weights define minimum cut. hypothesize can be related a network. find correspondence between measured ...

This paper presents a constitutive modelling technique for the multi-phase transformations in mono-crystalline silicon under complex loading. The development is based on the physical mechanisms observed experimentally and the incremental theory of plasticity. The stress–strain relationship is derived using closed loading/unloading surfaces, associated flow rule and isotropic hardening rule, to ...

The event-condition-action paradigm (also known as triggers or rules) is a powerful technology. It gives a database “active” capabilities – the ability to react automatically to changes in the database or in the environment. One potential use of this technology is in the area of multilevel secure (MLS) data processing, such as, military, where the subjects and objects are classified into differ...

Today network security, uptime and performance of network are important and serious issue in computer network. Anomaly is deviation from normal behavior which is factor that affects on network security. So Anomaly Extraction which detects and extracts anomalous flow from network is requirement of network operator. Anomaly extraction refers to automatically finding in a large set of flows observ...

Strains are applied to the integration procedure in nonlinear increments todecrease the errors arising from the linearization of plastic equations. Two deformationvectors are used to achieve this. The first vector is based on the deformations obtained bythe first iteration of the equilibrium step, and the second is acquired from the sum of thesucceeding iterations. By applying these vectors and...

Accurate material behaviour and its response to loading are needed for a reliable calibration of ductile failure criteria. Non-quadratic yield functions often necessary such description. Nevertheless, it leads the prediction stress states that inconsistent with expected deformations in contradiction experiments when associated flow rule is adopted. These problems may be solved by applying less ...