Reduced Order Modeling with Local Enrichment for the Nonlinear Geometric Response of a Cracked Panel

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Reduced Order Modeling for the Nonlinear Geometric Response of Some Curved Structures

Abstract: The focus of this paper is on the assessment of nonlinear reduced order models (ROM) for the accurate prediction of the geometrically nonlinear response of some curved structures. Earlier difficulties in obtaining accurate reduced order models are clarified and a revised identification procedure of the ROM parameters is proposed. The validation of the methodology to a curved beam and ...

Reduced Order Modeling for Nonlinear Vibration Analysis of Mistuned Multi-Stage Bladed Disks with a Cracked Blade

In this paper, a novel modeling methodology for the nonlinear vibration analysis of multi-stage bladed disk systems with small blade-to-blade mistuning and a cracked blade is proposed. The modeling strategy is based on an e cient stage-wise reduced order modeling method based on cyclic-symmetry analysis and component mode synthesis. Reduced order models are constructed for individual stages and...

Reduced Order Modeling of Nonlinear Control Systems

Equilibrium condition nonlinear modeling of a cracked concrete beam using a 2D Galerkin finite volume solver

A constitutive model based on two–dimensional unstructured Galerkin finite volume method (GFVM) is introduced and applied for analyzing nonlinear behavior of cracked concrete structures in equilibrium condition. The developed iterative solver treats concrete as an orthotropic nonlinear material and considers the softening and hardening behavior of concrete under compression and tension by using...