Drop-weight impact performance of sandwich panels with micro-lattice structures
A range of metallic lattice panels were manufactured using the selective laser melting (SLM) rapid prototyping technique.The Alporas foam and aluminium honeycomb were chosen as comparable core materials.The penetration behaviors of fully-supported and corner-supported sandwich panels were discussed.The penetration behaviour is of importance during foreign object impact and perforation of sandwich structures.A series of experimental tests have shown that the specific impactor penetration behaviours are similar for titanium alloy lattice cores and aluminium honeycomb cores.The deformation and rupture mechanisms of honeycomb and micro-lattice structures will be discussed in general terms,and these observations will be used to inform discussion of actual deformation and rupture in the panel tests.It is concluded that there is scope for improving the performance of micro-lattice structures to offer properties superior to that of aluminium foam and honeycomb.
Micro-lattice selective laser melting sandwich impact
Shen Yiou Cantwell Wesley Mines Robert Li Yan
School of Aerospace Engineering and Applied Mechanics Tongji University, 1239 Siping Road, Shanghai Department of Engineering, University of Liverpool, Brownlow hill, Liverpool, L69 3GH, UK
国际会议
上海
英文
51-51
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）