Abstract
The composite grid structure, which is highly efficient and strongly designable, posses a variety of excellent performances， such as light weight, high strength, and inherent impact resistance. This paper used experimental methods to investigate the composite grid structure consisting of quadrilateral unit cells. The authors made nine specimens composed of different unit-cell sizes of the grid structure, through a series of static and dynamic load testing on them, examined and further analyzed their mechanical behaviors and energy-absorbing capabilities, as well as compared their mechanical properties, thus found specific (new) correlations between microstructures and mechanical properties in composite grid structures.
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