Papers by Keyword: Cushion Materials

Abstract: This work studied the cushion efficiencies of aluminum foam and metal rubber as the cushion materials for microaccelerometers under shock load. A series of shock experiments were carried out to test the performance of these two materials. Preliminary results indicated that aluminum foam and metal rubber have different energy absorption mechanisms, and both of them have excellent energy absorption capability, which can effectively cushion the effect of shocking pulse peak and suppress the high-frequency vibration noise. Aluminum foam and metal rubber are believed to be promising cushion materials for microaccelerometer.

Abstract: In this paper, we have studied the hot forming process of composites made by polylactic acid (PLA) and corn straw fiber. In order to obtain the composite cushioning material with ideal density and expansion ratio, the parameters of processing was optimized. It showed that the optimum condition as follows: the hot-press time was 5min, the pressure was 15MPa and the temperature was 200°C. The structure of the composite was characterized by FTIR.

Abstract: A static compressive model and a dynamic compressive model have been constructed based on Sherwood-Frost’s constitutive model for a corn straw fiber reinforced composite cushioning packaging material. In deriving the models, material density, shape function, strain and strain ratio are considered. The validity of models has been verified by static compressive and dynamic impact testing. The proposed models will provide important theoretic guideline for designing this kind of cushioning material.