Low-Velocity Impact Characteristics of Carbon Fiber Composites Lattice Core Sandwich Structures

Shi Xun Wang; Lin Zhi Wu; Li Ma

doi:10.4028/www.scientific.net/AMR.79-82.127

Paper Titles

Preparation of Ultra-Fine MgO•Al₂O₃ Spinel Powder and its Metallurgy Behavior in Medium Carbon Steel
p.111

Stress Corrosion of High Performance Hybrid Fibers Reinforced Expansive Concrete Exposed to Magnesium Sulfate Solution
p.115

Effect of Li on Al-Si Alloys Structure and Properties
p.119

Research on LSCMCo-CDC Composites as Improved Anode Material for IT-SOFC
p.123

Low-Velocity Impact Characteristics of Carbon Fiber Composites Lattice Core Sandwich Structures
p.127

Synthesis of Spherical Mesoporous Co-MCM-41
p.131

Crack Crazing Patterns Interaction Based on Damage Criteria
p.135

Microstructural Morphology and Phase Structure of Rapidly Solidified Hypereutectic Al-Si Alloys
p.139

Effect of Ti, Al and Mg Addition on the Impact Toughness of Heat Affected Zone in Low Carbon Steel
p.143

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Low-Velocity Impact Characteristics of Carbon Fiber Composites Lattice Core Sandwich Structures

Abstract:

Since composite sandwich structures are susceptible to low-velocity impact damage, a thorough characterization of the loading and damage process during impact is important. In the present paper, the low-velocity impact response of carbon fiber composites lattice structures are investigated by experimental and numerical methods. Impact tests on composite plates are performed using an instrumented drop-weight machine (Instron 9250HV) and a new damage mode is observed. A three-dimensional finite element model is built by ABAQUS/Explicit and user subroutine (VUMAT) to predict the peak loading and simulate the complicated damage problem. It can be found that numerical predictions coincide well with experimental results.