Data Mining Practical Machine Learning Tools and Techniques

INTRODUCTION TO COMPOSITE MATERIALS Chapter Objectives Introduction Classi?cation Recycling Fiber-Reinforced Composites Mechanics Terminology Summary Key Terms Exercise Set References MACROMECHANICAL ANALYSIS OF A LAMINA Chapter Objectives Introduction Review of De?nitions Hooke's Law for Different Types of Materials Hooke's Law for a Two-Dimensional Unidirectional Lamina Hooke's Law for a Two-Dimensional Angle Lamina Engineering Constants of an Angle Lamina Invariant Form of Stiffness and Compliance Matrices for an Angle Lamina Strength Failure Theories of an Angle Lamina Hygrothermal Stresses and Strains in a Lamina Summary Key Terms Exercise Set References APPENDIX A: MATRIX ALGEBRA Key Terms APPENDIX B: TRANSFORMATION OF STRESSES AND STRAINS Transformation of Stress Transformation of Strains Key Terms MICROMECHANICAL ANALYSIS OF A LAMINA Chapter Objectives Introduction Volume and Mass Fractions, Density, and Void Content Evaluation of the Four Elastic Moduli Ultimate Strengths of a Unidirectional Lamina Coefficients of Thermal Expansion Coefficients of Moisture Expansion Summary Key Terms Exercise Set References MACROMECHANICAL ANALYSIS OF LAMINATES Chapter Objectives Introduction Laminate Code Stress-Strain Relations for a Laminate In-Plane and Flexural Modulus of a Laminate Hygrothermal Effects in a Laminate Summary Key Terms Exercise Set References FAILURE, ANALYSIS, AND DESIGN OF LAMINATES Chapter Objectives Introduction Special Cases of Laminates Failure Criterion for a Laminate Design of a Laminated Composite Other Mechanical Design Issues Summary Key Terms Exercise Set References BENDING OF BEAMS Chapter Objectives Introduction Symmetric Beams Nonsymmetric Beams Summary Key Terms Exercise Set References INDEX

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Mechanics of composite materials

3D meso-scale fracture modelling and validation of concrete based on in-situ X-ray Computed Tomography images using damage plasticity model

Generation of 3D representative volume elements for heterogeneous materials: a review

Independence-oriented VMD to identify fault feature for wheel set bearing fault diagnosis of high speed locomotive

Withdrawal: Transonic Aeroelastic Global Structural Optimization using an Efficient CFD-based Reduced Order Model with Flutter Constraints

Large eddy simulation (LES) is performed on a jet issued normally into a
 cross-flow using lattice Boltzmann method (LBM) and multiple graphic
 processing units (multi-GPUs) to study the flow characteristics of jets in
 cross-flow (JICF). The simulation with 8 1.50´10 grids is fulfilled with 6
 K20M GPUs. With large-scaled simulation, the secondary and tertiary vortices
 are captured. The features of the secondary vortices and the tertiary
 vortices reveal that they have a great impact on the mixing between jet flow
 and cross-flow. The qualitative and quantitative results also indicate that
 the evolution mechanism of vortices is not constant, but varies with
 different situations. The hairpin vortex under attached jet regime originates
 from the boundary layer vortex of cross-flow. While, the origin of hairpin
 vortex in detached jet is the jet shear-layer vortex. The mean velocities
 imply the good ability of LBM to simulate JICF and the large loss of jet
 momentum in detached jet caused by the strong penetration. Besides, in our
 computation, a high computational performance of 1083.5 MLUPS is achieved.

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Large-scaled simulation on the coherent vortex evolution of a jet in a cross-flow based on lattice boltzmann method

A Nolinear POD Reduced Order Model for Limit Cycle Oscillation Prediction

Topological Sensitivity Analysis of Structural Sound Radiation in a Thermal Environment

In past several decades, vortex-structure interaction generated aerodynamic noise became one of the main concerns in aircraft design. In order to understand the mechanism, the acoustic analogy method combined with the RANS-based nonlinear acoustics solver (NLAS) is investigated. The numerical method is firstly evaluated by the experiment data of the classic rod-airfoil model. Compared with the traditional analogy methods, the RANS/NLAS can capture the nonlinear aerodynamic noise more accurately with lower gird requirements. Then different rod-airfoil configurations were simulated to investigate the aeroacoustic interaction effects. The numerical results are in good agreement with those of the earlier experimental research. It is found that the vortex-shedding crash to the airfoil is the main reason for the noise generation which is dependent on the configurations, distance, and flow conditions.

/pdf/numerical-investigation-on-vortex-structure-interaction-45u9rm3kp6.pdf

Yueming Li

Papers

Withdrawal: Transonic Aeroelastic Global Structural Optimization using an Efficient CFD-based Reduced Order Model with Flutter Constraints

Large-scaled simulation on the coherent vortex evolution of a jet in a cross-flow based on lattice boltzmann method

A Nolinear POD Reduced Order Model for Limit Cycle Oscillation Prediction

Topological Sensitivity Analysis of Structural Sound Radiation in a Thermal Environment

Numerical Investigation on Vortex-Structure Interaction Generating Aerodynamic Noises for Rod-Airfoil Models