Abstract
A honeycomb core sandwich panel (hereafter, HSP for brevity) is superior in impact absorption under whole surface compression, because of the buffer effect of core. However impact properties of HSP under local compression such as drop weight impact are affected by the plate as the face sheet in addition to the core layer. This research describes drop weight impact properties of double layer HSP which consists of two core layers and three plates. In order to build up the experimental database for design of double layer HSP, a series of drop weight tests was carried out by using double layer HSPs with the several ratios of the core heights. From obtained results, the follows were summarized: 1) Two or three peaks of the load appeared in the load—displacement curve. The peak loads were larger in sequence of their appearances. 2) In the load—displacement curve until the last peak of the load, there are load increase regions by deep drawing of the plates and load equilibrium regions similar to plateau region under whole surface compression. 3) When the height of the upper layer core was lower, the absorption energy was larger in total. 4) An energy absorption model has been developed and verified for design of double layer HSP.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.