A three-dimensional finite element model is established to analyze and optimize the slope angle of
sandwich structure ramp transition region. Based on the finite element analysis software MSC,Patran/ Nastran the finite
element model of sandwich structure considering the decrease of panel layer of transient slope zone. After studying
the structural mechanical behavior formed in uniaxial compression load, the article further discussed the influence of
slope angle for the intensity and stability of regional structure of sandwich structure transition. The results show that
when the foam sandwich structure slope angle is between 25° to 30°,it can improve structure bearing capacity and reduce
the structure weight of dual purpose.