Acta Mechanica Solida Sinica

, Volume 25, Issue 2, pp 111–116 | Cite as

Experimental and simulated Compressive Properties of Work-Hardened X-Type Lattice Truss Structures

  • Qiancheng Zhang
  • Tianjian Lu


The expanded metal sheets were folded with 11% work-hardening. These were subsequently used with resistance welding to construct X-type lattice truss sandwich panels having a core relative density of 0.17. The sandwich panels were tested in uniaxial compression and, for comparison, the method of finite elements was employed to simulate the measured compressive stress-strain curves. The peak compressive strength was 32% higher than that of pyramidal core sandwiches. The enhanced mechanical properties of the work-hardened X-Type lattice structures mainly originate from the contribution of straight struts with low degree of curvature and work hardening, rather than the two-dimensional staggered nodes.

Key words

sandwichs work hardening resistance welding X-type core 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2012

Authors and Affiliations

  1. 1.MOE Key Laboratory of Strength & Vibration, School of AerospaceXi’an Jiaotong UniversityXi’anChina

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