Compression failure mechanisms in sandwich panels with corrugated channel cores - Details

Author：

Zhao, Zhen-Yu (Zhao, Zhen-Yu.) | Wang, Xin (Wang, Xin.) | Han, Bin (Han, Bin.) | Zhang, Qian-Cheng (Zhang, Qian-Cheng.) | Lu, Tian Jian (Lu, Tian Jian.)

Indexed by：

EI Scopus

Abstract：

Corrugated　channel　core　sandwich　panels　(3CSPs)　have　great　potential　as　a　bi-functional　(simultaneous　loadbearing　and　heat　dissipation)　lightweight　structure　used　in　the　integral　thermal　protection　system　(ITPS)　of　a　highspeed　space　vehicle.　The　failure　mechanisms　of　3CSPs　under　out-of-plane　compression　were　investigated　using　a　combined　experimental,　analytical　and　numerical　approach.　A　variety　of　deformation　modes　were　captured　via　experimental　measurements　and　finite　element　(FE)　simulations.　The　analytical　results　revealed　three　possible　failure　modes　of　3CSPs:　core　web　Euler　buckling　(EB),　core　web　local　buckling　(LB),　and　core　web　material　yielding　(MY).　The　theory　of　structural　stability　was　employed　to　define　relevant　failure　criteria　and　then　construct　the　failure　mode　maps　of　3CSPs.　Copyright　©　(2017)　by　International　Astronautical　Federation.　All　rights　reserved.

Keyword：

Corrugated channel D. digital image correlation (DIC) Failure mode map Finite element simulations Out-of-plane compression Sandwich panel Structural stabilities Thermal Protection System

Author Community：

[ 1 ] [Zhao, Zhen-Yu;Wang, Xin;Zhang, Qian-Cheng;Lu, Tian Jian]State Key Laboratory for Strength and Vibration of Mechanical Structure, Xi'an Jiaotong University, Xi'an; 710049, China
[ 2 ] [Zhao, Zhen-Yu;Wang, Xin;Han, Bin;Zhang, Qian-Cheng;Lu, Tian Jian]MOE, Key Laboratory for Multifunctional Materials and Structures, Xi'an Jiaotong University, Xi'an; 710049, China
[ 3 ] [Han, Bin]School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China

Reprint Author's Address：

[Zhang, Qian-Cheng]State Key Laboratory for Strength and Vibration of Mechanical Structure, Xi'an Jiaotong University, Xi'an; 710049, China;;[Zhang, Qian-Cheng]MOE, Key Laboratory for Multifunctional Materials and Structures, Xi'an Jiaotong University, Xi'an; 710049, China;;

Email：

zqc111999@mail.xjtu.edu.cn

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