Study on Mechanical Properties of TC4 Titanium Alloy Honeycomb Sandwich Structure
The shear and compression special fixtures were designed for the braided titanium alloy honeycomb sandwich structure with reinforced edges.The shear and compression stability of the honeycomb panels was compared with the arrangement of two dif-ferent honeycomb cores.Optical moire method and strain gauge method to observe the structural deformation.The results show that the arrangement of the honeycomb core has some influence on the lateral pressure and shear performance of the honeycomb sand-wich structure.The shear test shows that the failure starting position and the entire failure mode are different.The lateral compres-sion test shows the observable degree of compression and compressive pressure are different.The experimental data obtained from the shear test are more consistent,and the lateral pressure test results in the dispersion of the local structure due to the native struc-ture,but the overall trend is consistent.
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