Low-Velocity Impact Response of Carbon Fiber-Aluminum Foam Sandwich Plate

LIU Shanshan; LIU Yajun; ZHANG Yingjie; LI Zhiqiang

doi:10.11858/gywlxb.20190872

Volume 34 Issue 3

Jun 2020

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Chinese Journal of High Pressure Physics > 2020 > 34(3): 034202.

LIU Shanshan, LIU Yajun, ZHANG Yingjie, LI Zhiqiang. Low-Velocity Impact Response of Carbon Fiber-Aluminum Foam Sandwich Plate[J]. Chinese Journal of High Pressure Physics, 2020, 34(3): 034202. doi: 10.11858/gywlxb.20190872

Citation:

LIU Shanshan, LIU Yajun, ZHANG Yingjie, LI Zhiqiang. Low-Velocity Impact Response of Carbon Fiber-Aluminum Foam Sandwich Plate[J]. Chinese Journal of High Pressure Physics, 2020, 34(3): 034202. doi: 10.11858/gywlxb.20190872

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Low-Velocity Impact Response of Carbon Fiber-Aluminum Foam Sandwich Plate

doi: 10.11858/gywlxb.20190872

LIU Shanshan^1
,,
LIU Yajun¹,
ZHANG Yingjie¹,
LI Zhiqiang^{1, 2, 3,*
,
,}

1.
Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
2.
Shanxi Key Laboratory of Material Strength & Structural Impact, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
3.
National Demonstration Center for Experimental Mechanics Education (Taiyuan University of Technology), Taiyuan 030024, Shanxi, China

Received Date: 23 Dec 2019
Rev Recd Date: 04 Feb 2020

Abstract

Abstract

In order to study the low velocity impact response of the core-layer structure, this paper simulates the damage process of sandwich structure, that carbon fiber (T700)/epoxy composite laminates are used as the top and bottom panel, the foam aluminum is used as core layer, under impact loading of drop hammer. The composite laminates were modeled with three-dimensional solid elements, and the failure criteria of three-dimensional Hashin were introduced to simulate the damage of composite materials by the user subroutine VUMAT in the finite element software ABAQUS. The bonding layer failure between the layers was simulated with criterion of the secondary stress and cohesive unit. The aluminum foam core layer was modeled by a 3D Voronoi mesoscopic model. By analyzing the damage initiation, damage propagation and final failure modes of composite sandwich structures under low speed impact, the progressive failure mechanism of composite materials was clarified. The contact force and displacement through the hammer head, internal energy of sandwich panel, rear panel to study the stress distribution and maximum displacement energy absorption and impact resistance of sandwich structure. The optimal design of the coupling relation between the relative density and thickness of five different core layers under the condition of a certain quality control have been obtained, which provides designed guidance for satisfying the requirements of practical engineering.
- composite sandwich plate,
- low speed impact,
- damage evolution,
- dynamic response,
- energy absorption characteristics

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Low-Velocity Impact Response of Carbon Fiber-Aluminum Foam Sandwich Plate

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