Now showing items 21-40 of 48

    • UNSUPERVISED LEARNING METHODS FOR IDENTIFICATION OF DEFECTS IN HETEROGENEOUS MATERIALS 

      Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Raihan, Rassel; Reifsnider, Kenneth (Proceedings of the American Society for Composites—Thirty-fifth Technical Conference, 2020-09-17)
      **Please note that the full text is embargoed** ABSTRACT: The complexity of composite materials due to the nature of their numerous laminated layers, stacking sequences, type of fibers, resin, and other external factors ...
    • Design of Embedded Wireless Sensors for Real-Time and In-Situ Strain Sensing of Fiber Reinforced Composites 

      Qhobosheane, Relebohile George; Islam, Sujjatul; Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Raihan, Rassel; Reifsnider, Kenneth; Shen, Wen (DESTech, 2019)
      **Please note that the full text is embargoed** ABSTRACT: The increasing demand of early detection of barely visible damage inside fiber reinforced polymer (FRP) composites has led to the development of advanced microsensors ...
    • Performance Enhancement and Prediction of Composite Materials with Embedded Electrospun Piezoelectric Sensors 

      Mazed, Rahman Jani; Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Ahmed, Md Riaz Uddin; Raihan, Rassel; Reifsnider, Kenneth (Society of the Advancement of Material and Process Engineering (SAMPE), 2020)
      **Please note that the full text is embargoed** ABSTRACT: In today’s world, continuous fiber reinforced composite materials are extensively used in the aerospace, automotive and other structural industries. Since the ...
    • Delamination Initiation and Migration Modeling in Clamped Tapered Laminated Beam Specimens Under Static Loading 

      Adluru, Hari K.; Hoos, Kevin H.; Iarve, Endel V.; Ratcliffe, James G. (University of Texas at Arlington Libaries, 2019-03)
      **Please note that the full text is embargoed** ABSTRACT: The Clamped Tapered Beam Specimen (CTBS) designed to study the initiation of matrix cracking and delamination and their propagation including delamination migration ...
    • A Global-local Discrete Damage Modeling Framework for Composite Laminates 

      Adluru, Hari K.; McQuien, J. Scott; Iarve, Endel V.; Harman, Alex B. (The University of Texas at Arlington Libraries, 2019-01)
      **Please note that the full text is embargoed** ABSTRACT: A global-local analysis method is demonstrated within the Regularized eXtended Finite Element (Rx-FEM) framework. Rx-FEM is a Discrete Damage Modeling (DDM) method ...
    • The Implementation of Regularized Extended Finite Element Method(Rx-FEM) in ABAQUS 

      Liang, Yu-Jui; Iarve, Endel V.; McQuien, J. Scott (University of Texas at Arlington Libraries, 2019-01)
      **Please note that the full text is embargoed** ABSTRACT: Rx-FEM is a discrete damage modeling (DDM) method, which represents an approach to progressive failure modeling in composites when multiple individual damage events ...
    • Composite Buckling Analysis Using Discrete Damage Modeling 

      McQuien, J. Scott; Iarve, Endel V.; Mollrnhauer, David H.; Braginsky, Michael; Stuebner, Michael (University of Texas at Arlington Libraries, 2019-01)
      **Please note that the full text is embargoed** ABSTRACT: A Total-Lagrange formulation for geometric nonlinearity was implemented within the Rx-FEM framework. Rx-FEM is a discrete damage modeling method for progressive ...
    • Discrete Damage Modelling of Delamination Migration in Clamped Tapered Laminated Beam Specimens 

      Adluru, Hari K.; Hoos, Kevin H.; Iarve, Endel V. (University of Texas at Arlington Libraries, 2017-10)
      **Please note that the full text is embargoed** ABSTRACT: Laminated composite materials are used in stiffness critical applications and contain various stress concentration features such as holes, tapers and stiffener ...
    • An Analytical Analysis of Fiber Waviness for Laminated Curved Beam Under Bending 

      Lu, Wei-Tsen; Liang, Yu-Jui; Iarve, Endel V. (University of Texas at Arlington Libraries, 2019-09)
      **Please note that the full text is embargoed** ABSTRACT: A closed-form analytical solution is developed for analyzing laminated composite curved beam with fiber waviness. Explicit expressions for evaluating equivalent ...
    • An ABAQUS Implementation of Regularized Extended Finite Element Method (Rx-FEM) for Modeling the Interaction between Matrix cracking and delamination in Composites 

      Liang, Yu-Jui; McQuien, J. Scott; Iarve, Endel V. (University of Texas at Arlington Libraries, 2019-09)
      **Please note that the full text is embargoed** ABSTRACT: Regularized Extended Finite Element Method (Rx-FEM) is a discrete damage modeling (DDM) method, which represents an approach to progressive failure analysis (PFA) ...
    • Modeling Complex Sub-elements by using Discrete Damage Modeling 

      Hoos, Kevin H.; McQuien, J. Scott; Adluru, Hari K.; Schaefer, Joseph D.; Gu, Haozhong; Iarve, Endel V. (University of Texas at Arlington Libraries, 2019-09)
      **Please note that the full text is embargoed** ABSTRACT: Discrete Damage Modeling is applied to complex sub-elements loaded in static and fatigue. Layered 8-node brick elements called LC3D8 elements were implemented for ...
    • Structural Health Monitoring of Fiber-Reinforced Composite Using Wireless Magnetostrictive Sensors 

      Islam, Sujjatul; Qhobosheane, Relebohile George; Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Raihan, Rassel; Reifsnider, Kenneth; Shen, Wen (Society of the Advancement of Material and Process Engineering (SAMPE), 2019-04-11)
      **Please note that the full text is embargoed** ABSTRACT: Composite materials are extending the horizons of designers in all branches of engineering. These materials have numerous advantages and improved structural properties ...
    • Damage Precursor Identification in Composite Laminates using Data Driven Approach 

      Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Raihan, Rassel; Reifsnider, Kenneth (American Institute of Aeronautics and Astronautics (AIAA), 2019-01-07)
      **Please note that the full text is embargoed** ABSTRACT: Composite materials are rapidly being used in commercial aviation and other day to day applications. The individual damage modes in composites are very well understood ...
    • Discrete Damage Modeling of Matrix Dominated Failure Including Random Spatial Variation of Strength 

      Hoos, Kevin H.; Iarve, Endel V. (2018)
      **Please note that the full text is embargoed** ABSTRACT: Discrete Damage Modeling (DDM) was applied to strength prediction of three types of composite tape specimens exhibiting rather brittle behavior. These were transverse ...
    • Discrete Damage Modelling of Clamped Tapered Beam Specimen Under Fatigue Loading 

      Adluru, Hari K.; Iarve, Endel V.; Hoos, Kevin H. (2018)
      **Please note that the full text is embargoed** ABSTRACT: Clamped Tapered Beam (CTB) sub-element, proposed by Advanced Composite Project Team at the NASA Langley Research Center was studied under monotonic fatigue loading. ...
    • DATA DRIVEN COMPOSITES: THE CHALLENGE AND PATHS FORWARDS 

      Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Raihan, Rassel; Reifsnider, Kenneth (Proceedings of CAMX 2018 Conference,Dallas, TX, 2018)
      **Please note that the full text is embargoed** ABSTRACT: The concept of “data driven” grew out of the general subject of data analytics, especially in the business world. The classical sequence proposed by Dykes (2010) ...
    • Effects of Build Parameters on the Mechanical and Di-Electrical Properties of AM parts 

      Munaganuru, Sai Sri Nidhi; Elenchezhian, Muthu Ram Prabhu; Vadlamudi, Vamsee; Shaik, Rauhon Ahmed; Adluru, Hari K.; Raihan, Rassel; Reifsnider, Kenneth (Solid Freeform Fabrication 2018: Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference, 2018)
      **Please note that the full text is embargoed** ABSTRACT: Additive manufacturing (AM) revolutionized many industries, i.e., Automotive, Biomedical, Aerospace and Defense. As opposed to traditional manufacturing methods, ...
    • State Variable Methods of Assessment, Prognosis, and Control of Composite and Bonded Structures 

      Reifsnider, Kenneth; Raihan, Rassel; Vadlamudi, Vamsee; Elenchezhian, Muthu Ram Prabhu (Proceedings of the American Society for Composites—Thirty-third Technical Conference, 2018)
      **Please note that the full text is embargoed** ABSTRACT: It is generally recognized that the determination of material state is the baseline foundation for the assessment and prognosis of current and future performance ...
    • Global Prediction of Discrete Local Damage Interactions Using Broadband Dielectric Spectroscopy 

      Vadlamudi, Vamsee; Elenchezhian, Muthu Ram Prabhu; Shaik, Rauhon Ahmed; Nandini, Aishwarya; Raihan, Rassel; Reifsnider, Kenneth; Iarve, Endel V. (Proceedings of the American Society for Composites—Thirty-third Technical Conference, 2018)
      **Please note that the full text is embargoed** ABSTRACT: With the increasing demand for composites in many modern applications, it is important to predict the initiation of failure events. Due to the heterogeneous nature ...
    • Molecular Dynamics for the Prediction of the Interfacial Shear Stress and Interface Dielectric Properties of Carbon Fiber Epoxy Composites 

      Chahal, Rajni; Adnan, Ashfaq; Reifsnider, Kenneth; Raihan, Rassel; Ting Wu, Yuan; Vadlamudi, Vamsee; Elenchezhian, Muthu Ram Prabhu (Proceedings of the American Society for Composites—Thirty-third Technical Conference, 2018)
      **Please note that the full text is embargoed** ABSTRACT: The thermoset epoxy resin Diglycidyl ether of Bisphenol F (EPON 862), crosslinked with the Diethylene Toluene Diamine (DETDA) hardening agent, are utilized as the ...