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Showing 1 to 20 of 24 for “"Material nonlinearity"”.
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A multiscale computational framework for ceramic composite structures with localized material nonlinearity
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Three dimensional geometrical and material nonlinear finite element analysis of adhesively bonded joints for marine structures
… trains and in civil constructions. The type of materials used and design practices followed in marine structures are different from what is applied in other disciplines. Therefore new research approaches are required and recent novel ideas are explored in the context of application of bonded …
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Effects of layer waviness on compression-loaded thermoplastic composite laminates
… finite element analysis which included material nonlinearity.
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Nonlinear probabilistic finite element modeling of composite shells
… of the structural response. The effects of material nonlinearity are included through the use of a rate-independent anisotropic plasticity formulation with the macroscopic point of view. Both ply-level and micromechanics-level random variables can be selected, the latter by means of the …
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Holonomic Elastoplastic Truss Design Using Displacement Based Optimization
… was applied to truss design problems with material nonlinearities, to explore feasibility and verify efficiency of the approach to solve such problem. Various truss sizing problems with holonomic (path-independent) elastoplastic laws were investigated. This type of material nonlinearity …
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Static and dynamic large deflection flexural response of graphite- epoxy beams
… the damage caused by impact. A geometrically and materially nonlinear analysis of the response and failure of the static test specimens is presented. The analysis employed an incremental, noniterative finite element model based on the Kantrovich method and a corotational solution technique. …
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Development of a vibration fatigue failure prediction model for automotive lamps made of polymers
… are composed of different parts made of polymer materials. Polymers exhibit hyperelastic behaviour and they also exhibit inter-sample variation due to manufacturing processes. Some of the material properties required for dynamic and fatigue life analysis are not readily available. The key to …
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Characterization of nonlinearity parameters in an elastic material with quadratic nonlinearity with a complex wave field
… in an elastic half-space with a quadratic nonlinearity in its stress-strain relationship. Different boundary conditions on the surface are considered that result in both one- and two-dimensional wave propagation problems. The goal of the research is to examine the generation of second-order …
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Finite element analysis of shear band failure with particular reference to circular plate impact
… capabilities are included, together with material nonlinearity in the form of a von Mises elastic-plastic model. The algorithms used in this work are dictated to a large degree by the emphasis which is placed upon efficiency, although this is not at the expense of accuracy. Numerical …
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Nonlinear three-dimensional behavior of shear-wall dominant reinforced concrete building structures
… of shear-wall dominant building structures, ie. material nonlinearity including rotating crack capability, 3-D behavior, slab-wall interaction, floor flexibilities, stress concentrations around the openings, the location and the amount of the main discrete reinforcements are investigated. For …
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A small strain, large rotation theory and finite element formulation of thin curved beams
… curved beam of rectangular cross-section. Material nonlinearity, which is based an the von-Mises yield function and the Prandtl-Reuss flow rule and in which isotropic hardening is assumed, has been included in the formulation. A family of three-diinensional beam elements, that can …
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Optical absorption and anisotropy of refractory oxides fabricated by ion-assisted deposition and ion plating.
… members of the class of high index refractory materials: Tantalum pentoxide and Titania are investigated. These materials are known to produce very high quality films. Ion plating of tantalum results in the extremely high quality films, but ion plating of titania results in films with …
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Modeling dynamic ruptures with high resolution fault zone physics
… heating, and compaction of fluid filled granular materials and rocks in the subsurface subjected to extreme geophysical conditions. Due to the wide range of spatial and temporal scales characteristic of the earthquake source processes, computational modeling of these processes continue to be a …
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Ultimate Strength of Clamped Steel-Elastomer Sandwich Panels under Combined In-plane Compression and Lateral Pressure
… have been solved by the Galerkin method. The material nonlinearity is treated by iteration and a three-dimensional mesh. For the load case of pure lateral pressure, the ultimate strength from the semi-analytical method is similar to that from hinge line theory and finite element analysis …
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Analysis and Experimental Investigation of Wave Propagation and Energy Transfer in Mechanical Rotator Metamaterials
… of periodic structures and acoustic/elastic metamaterials is dedicated to comprehending and manipulating the propagation of waves and energy transfer in engineered materials characterized by periodic arrangements of unit cells. This organized arrangement governs wave behavior, imparting …
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Nonlinear Finite Element Analysis of FRP Strengthened RC Beams under Static and Cyclic Loads
… under cyclic load, and also the degradation of material properties of concrete, steel and FRP with number of cycles have been neglected in the existing few models. Most of the developed finite element models also neglected the bond-slip between FRP-adhesive-concrete interfaces in FRP …
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Nonlinear Analysis of Plane Frames Subjected to Temperature Changes
… for the geometric nonlinear analysis and the material nonlinear analysis of plane frames subjected to elevated temperatures are presented. The method of analysis is based on a Eulerian (co-rotational) formulation, which was developed initially for static loads, and is extended herein to …
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Thermomechanical Response of Shape Memory Alloy Hybrid Composites
… (2) characterization of the constituent materials for model quantification, (3) development of the test apparatus for conducting static and dynamic experiments on specimens with and without SMA, (4) discussion of the experimental results, and (5) validation of the analytical and numerical …
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Investigation of Linear and Nonlinear Torsional Guided Waves in Hollow Circular Cylinders for Damage Detection
… highly sensitive to early stage of micro cracks. Material nonlinearity is one of the nonlinear phenomena in the presence of the micro cracks. It can induce higher-order harmonics of guided wave. Guided wave mixing is the advanced version of nonlinear guided wave since the generation of …
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Efficient and Robust ADMM Methods for Dynamics and Geometry Optimization
… polar decomposition that separates the geometric nonlinearity of rotations from the material nonlinearity of the deformation energy. The resulting ADMM-based algorithm is a combination of an L-BFGS solve in the global step and proximal updates of element stretches in the local step. We also …
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