Experimental and simulation studies on compressive properties of brazed
aluminum honeycomb plate and a strength prediction method
Abstract
To study the compressive mechanical properties of a new type of brazed
aluminum honeycomb plate (BAHP), tensile tests on single- and
brazed-cell walls as well as compression tests in the out-of-plane,
in-plane longitudinal, and transverse directions were conducted.
Compared to the material properties of a traditional glued aluminum
honeycomb plate (GAHP), those of the single- and brazed-cell walls of
the BAHP are entirely different. Therefore, their characteristics should
be considered separately when performing theoretical and simulation
analysis. Under out-of-plane compression, the core of the BAHP did not
debond, owing to its higher strength than that of the GAHP. In
comparison, under in-plane compression in the longitudinal and
transverse directions, the load–displacement characteristics, ultimate
load, and failure modes also differed, and there was no large-scale
cracking. Considering the characteristics of the BAHP, a strength
prediction method was proposed. The simulation results demonstrated that
the model built based on the new method was highly consistent with the
experimental results.