Research on Crashworthiness of Metal Hollow Sphere Aluminum Foams Applied in Highway Guardrail
Aluminum foams is applied to highway guardrail to reduce damage during crash as a background,the metal hollow sphere foam models with matrix material of aluminum are established,and the dynamic performances of metal hollow sphere foams are analyzed by simulation.The influences of density distribution on load consistencies under impact are discussed emphatically.Research results show that the reasonable density distribution in space,i.e.the alternating arrangement of high density mass and low density mass,does not affect the basic mechanical properties of metal hollow sphere foams,but can improve the load consistency of metal hollow sphere foams effectively.
metal hollow sphere foamload consistencydynamic responsemass distribution
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