... Summary Summary The aim of this research is to assess the impact performance of Steel- Concrete -Steel (SCS) sandwich structures comprising a concrete core sandwiched in between two steel plates which ... IMPACT PERFORMANCE OF STEEL- CONCRETE -STEEL SANDWICH STRUCTURES KAZI MD ABU SOHEL (B.Sc Eng, BUET, M.Sc Eng., BUET, M Eng., NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... strength of steel plate t Tensile stress y Yield strength of steel yd Dynamic yield strength of steel u Ultimate tensile strength of steel xx List of symbols FRC Shear strength of FRC ...