in this paper, a structural damage identification method (sdim) is developed for plate-like structures. this method is derived using dynamic equation of undamaged/damaged plate, in which local change in flexural rigidity is characterized utilizing a damage distribution function. the sdim requires to modal data in the intact state and frequency response of damage state where most of vibration ba...

The purpose of the present study is the damage detection in the thin plates in terms of the wide application of such structures in various branches of engineering such as structural, mechanical, aerospace, shipbuilding, etc. using gradient-based second-order numerical optimization techniques. The technique used for optimization in this study is the second-order Levenberg-Marquardt algorithm (SO...

The Joint Warfighting Center (JWFC) supports Combatant Commander exercise programs with several simulation suites. Ten years ago simulated scenarios involved combat. Increasingly, however, scenarios depict crises requiring humanitarian assistance, disaster relief, or similar emergency response (ER). JWFC responded to the change in scenario requirements by developing a simulation suite using exi...

For a proper simulation of urban traffic scenarios, besides cars other road users, namely bicycles and pedestrians, have to be modeled. In scenarios where a whole city is modeled, a detailed actor-based simulation of pedestrians leads to expensive extra computational load. We investigate to what extent it is possible to capture traffic effects imposed by simulated pedestrians and then perform s...

This paper studies the joint damage assessment and recovery of the power infrastructure after a natural disaster has occurred. Earlier work in this area proposed an optimization algorithm for the recovery phase, assuming that the infrastructure damage was known precisely. This paper lifts this assumption which does not always hold in practice. It proposes three approaches to this problem: An on...

abstract the main objective of this paper is to apply the canalman model in the performance assessing of different water operational scenarios in the west main canal of dez irrigation network. the proposed model was calibrated and validated based on the real data of march and april 2006. the real water operational condition during five months (may to september 2006) was simulated. for this peri...

BACKGROUND Pediatric medication dosing has been recognized as a high-error activity with the potential to cause serious harm. Few studies assess systems approaches to error reduction in pediatrics. OBJECTIVE To estimate the decrease in deviation from recommended medication doses associated with use of a pediatric intervention standardization system in the acute setting. DESIGN Two-period, 2...

The continuum mechanic simulation of micro-structural damage process is important in the study of ductile fracture mechanics. In this paper, the continuum damage mechanics model formulation proposed by Lematire has been validated against ductile damage evolution experimentally measured in A533B-C1 steel under stress triaxiality conditions. First, a &#10procedure to identify the model parameters...