A Last Paper: An Equivalent Plate Modeling of Corrugated Structures
23 May 2014 | Publications | Contributor(s): Wenbin Yu, Zheng Ye, Victor Berdichevsky
An equivalent classical plate model of corrugated structures is derived using the variational asymptotic method. Starting from a thin shell theory, we carry out an asymptotic analysis of the strain energy in terms of the smallness of a single corrugation with respect to the characteristic length...
Accelerated Insertion of Advanced Materials for Aircraft Structures & Repair
31 Oct 2014 | Publications | Contributor(s): Waruna Seneviratne, John Tomblin, Chee Chan, Tharindu Jayaratne
Building block approach is a rational multi-level analysis and testing development approach used by many aerospace companies to certify metallic and composite structures. Costly and time-consuming allowable programs hinder application of novel composite materials and often forces designers to use...
Variational Asymptotic Modeling of Composite Dimensionally Reducible Structures
09 Nov 2014 | Publications | Contributor(s): Wenbin Yu
This is Prof. Yu's PhD dissertation. In this disseration, the variational asymptotic method has be used to provide a systematic, holistic, and rigorous approach to construct efficient yet accurate models for composite beams, plates, and shells.
Structure Genome: Fill the Gap between Materials Genome and Structural Analysis
29 Nov 2014 | Publications | Contributor(s): Wenbin Yu
A new concept, Structure Genome (SG), is proposed to fill the gap between materials genome and structural analysis. SG acts as the basic building block of the structure connecting materials to structures and the mechanics of SG governs the necessary information to link materials genome and...
A Critical Assessment of Computer Tools for Calculating Composites Wind Turbine Blade Properties
16 Mar 2015 | Publications | Contributor(s): Wenbin Yu
The purpose of this paper is to critically assess several computer tools for calculating the inertial and structural properties of wind turbine blades. The theoretical foundation of each tool is briefly summarized, and the advantages and disadvantages of each tool are pointed out. Several...
Mathematical Construction of a Reissner–Mindlin Plate Theory for Composite Laminates
03 Jun 2015 | Publications | Contributor(s): Wenbin Yu
A Reissner–Mindlin theory for composite laminates without invoking ad hoc kinematic assumptions is constructed using the variational-asymptotic method. Instead of assuming a priori the distribution of three-dimensional displacements in terms of two-dimensional plate displacements as what is...
Micromechanics Simulation Challenge Level I Results
30 Jun 2015 | Publications | Contributor(s): Andrew J Ritchey, Hamsasew Sertse, Johnathan Goodsell, Wenbin Yu, Byron Pipes
The initial results of level I of micromechanics simulation challenge were documented in the attached paper which is also included in the proceedings of American Society of Composites 30th Annual Technical Meeting at Michigan State. Results for various composites including fiber...
Assess the Accuracy of the Variational Asymptotic Plate and Shell Analysis (VAPAS) Using the Generalized Unified Formulation (GUF)
19 Nov 2015 | Publications | Contributor(s): Wenbin Yu
The accuracy of the Variational Asymptotic Plate and Shell Analysis (VAPAS) is assessed against several higher order, zig zag,and layerwise theories generated by using the invariant axiomatic framework denoted as Generalized Unified Formulation (GUF).These theories are also compared against the...
Analysis of Slender Structures Using Mechanics of Structure Genome and Open Source Codes
18 Apr 2016 | Publications | Contributor(s): Xin Liu
This is the Master thesis from Xin Liu in Prof Yu’s research group. In this thesis, the Mechanics of Structure Genome (MSG) has be used to provide an alternative way to model composite beam-like structures. Basic concept of MSG is introduced as well as the idea of how to carry out...
A Unified Theory for Constitutive Modeling of Composites
18 Apr 2016 | Publications | Contributor(s): Wenbin Yu
A unified theory for multiscale constitutive modeling of composites is developed using the concept of structure genomes. Generalized from the concept of the representative volume element, a structure genome is defined as the smallest mathematical building block of a structure. Structure...