Now showing items 47-54 of 54

    • Reduced allowable strength of composite laminate for unknown distribution due to limited tests 

      Zhang, Yiming; Kim, Namho; Palliyaguru, Upul R.; Schutte, Jaco F.; Haftka, Raphael T. (SAGE Publications, 2020-02-06)
      In design under uncertainty, random distributions are often determined by expensive sampling tests. A key question is whether to invest in more samples or live with a reduced performance by fewer samples due to large ...
    • Refill Friction Stir Spot Joining for aerospace aluminum alloys 

      Boldsaikhan, Enkhsaikhan; Fukada, Shintaro; Fujimoto, Mitsuo; Kamimuki, Kenichi; Okada, Hideki; Duncan, Brent; Bui, Phuonghanh; Yeshiambel, Michael; Brown, Brian M.; Handyside, Alan Bruce (Springer, 2017)
      Refill Friction Stir Spot Joining (RFSJ) developed by Kawasaki Heavy Industries (KHI) is a derivative technology of friction stir spot welding for joining aerospace aluminum alloys. The aerospace aluminum alloys were ...
    • Refill friction stir spot welding of surface-treated aerospace aluminum alloys with faying-surface sealant 

      Boldsaikhan, Enkhsaikhan; Fukada, Shintaro; Fujimoto, Mitsuo; Kamimuki, Kenichi; Okada, Hideki (Elsevier, 2019-06)
      Refill friction stir spot welding (RFSSW) is a derivative of friction stir spot welding (FSSW). Unlike conventional FSSW, it does not leave behind an exit hole in the workpiece. Kawasaki Heavy Industries (KHI) developed a ...
    • Simulation framework for autonomous search and rescue UAVs 

      Lemmens, Yves; Teirlinck, Casper; Hegde, Anoosh; Olivares, Gerardo; Shah, Harsh (American Institute of Aeronautics and Astronautics, Inc., 2022-06-15)
      This paper presents the capabilities of the Simcenter-based simulation framework for modeling and validating hybrid autonomous aircraft systems and flight missions. This is accomplished by modeling the drone subsystems in ...
    • SIMULIA Abaqus simulations to predict compression-after-impact behavior 

      Krishnan, Arun; Perera, Shenal; Seneviratne, Waruna P. (DEStech Publications, 2019-09)
      Fiber-reinforced composites are receiving increased attention due to their superior mechanical properties compared to traditional materials. Since composites are made of multiple components, their failure mechanisms are ...
    • Skin/stringer interface damage characterization of stiffened composite structures 

      Seneviratne, Waruna P.; Saseendran, Vishnu; Shafie, Mohamed Z.; Tomblin, John S. (DEStech Publications, 2021-09-01)
      With stiffened composite panels being widely used in aerostructures, critical failure mechanics of the skin/stringer interface need to be thoroughly understood. The interface is design critical and must demonstrate the ...
    • SPH -- Lagrangian study of bird impact on leading edge wing 

      Guida, M.; Marulo, F.; Meo, M.; Grimaldi, A.; Olivares, Gerardo (Elsevier, 2011-02)
      Results from the experimental tests are given so that they can be used to validate numerical models and promote the use of the numerical tools in aircraft design and certification process. The explicit finite element ...
    • The use of neural network and discrete Fourier transform for real-time evaluation of friction stir welding 

      Boldsaikhan, Enkhsaikhan; Corwin, Edward M.; Logar, Antonette M.; Arbegast, William J. (Elsevier, 2011-12)
      This paper introduces a novel real-time approach to detecting wormhole defects in friction stir welding in a nondestructive manner. The approach is to evaluate feedback forces provided by the welding process using the ...