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Normal impact behaviour of C/SiC rigid‐felt titanium alloy three‐layered plate
Author(s) -
Chen L,
Yao X,
Cen S.,
Wang S
Publication year - 2016
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12362
Subject(s) - materials science , dissipation , titanium alloy , alloy , finite element method , composite material , impact energy , kinetic energy , structural engineering , thermal , computer simulation , mechanics , engineering , classical mechanics , physics , meteorology , thermodynamics
In this paper, impact damage behaviours of C/SiC rigid‐felt titanium alloy three‐layered plate under normal impact are investigated. First, low velocity impact experiment of the three‐layered plate is performed by means of a drop weight impact apparatus. Second, the finite element model of the three‐layered plate is established using a damage constitutive model; also, the influences of the initial kinetic energy (the initial velocity and the mass of the impactor) on stress distributions and damage patterns of the three‐layered plate are analysed. Finally, the energy dissipation mechanisms and failure characterizations of the three‐layered plate are discussed; also, the agreements of physical variables and damage morphologies between experimental and numerical results validate the reliability of numerical simulation. The results will play an important role in designing and evaluating advanced thermal protection structure.