Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Microstructure Analysis Of Aluminum Alloy And Copper Alloy Circular Shells After Multiaxial Plastic Buckling, N. Drusina, R. Mahapatra, A. Abdul-Latif, R. Baleh, C. Wilhelm, P. Stoyanov, Omar S. Es-Said
Microstructure Analysis Of Aluminum Alloy And Copper Alloy Circular Shells After Multiaxial Plastic Buckling, N. Drusina, R. Mahapatra, A. Abdul-Latif, R. Baleh, C. Wilhelm, P. Stoyanov, Omar S. Es-Said
Mechanical Engineering Faculty Works
Aluminum and copper cylindrical shells were plastically buckled under quasi-static and dynamic loading conditions with an Absorption Compression-Torsion Plasticity (ACTP: Patent No. WO 2005090822) combined mechanical testing device. Optical microscopy and transmission electron microscopy (TEM) analysis were used to study the microscopic evolutions in the mechanically buckled aluminum and copper alloy samples. Optical microscopy showed evidence of the presence of second-phase particles in both the aluminum and copper alloys samples. Under dynamic loading aluminum samples showed more energy absorption as compared to copper samples. Material flow lines were more pronounced in the copper samples when observed by optical microscopy. The …
Evaluation Of Advanced Adhesives For Aerospace Structures, P. Stoyanov, N. Rodriguez, T. Dickinson, D. H. Nguyen, E. Park, J. Foyos, V. Hernandez, J. Ogren, Michael Berg, Omar S. Es-Said
Evaluation Of Advanced Adhesives For Aerospace Structures, P. Stoyanov, N. Rodriguez, T. Dickinson, D. H. Nguyen, E. Park, J. Foyos, V. Hernandez, J. Ogren, Michael Berg, Omar S. Es-Said
Mechanical Engineering Faculty Works
Polymer adhesives are finding increased use in panel joining applications in aircraft and aerospace structures where the applied stresses permit their use and where a uniform stress distribution is needed. One such adhesive, Hysol EA-9394 (TM), was compared to three other formulations in this study. The new formulations were Hysol EA-9396, Hysol EA-9396 filled with nickel nanofibers and mixed by machine (Jamesbury Blender), and Hysol EA-9396 filled with nickel nanofibers and hand mixed in the laboratory. The comparison consisted of measuring shear lap strengths of aluminum test pieces bonded together with the candidate adhesives. The mechanical tests were supplemented by …