Low-velocity impact characteristics and residual tensile strength of carbon fiber composite lattice core sandwich structures
Low-velocity impact characteristics and residual tensile strength of carbon fiber composite lattice core sandwich structures
复制标题
碳纤维复合材料晶格芯夹层结构的低速冲击特性及残余拉伸强度
DOI:
10.1016/j.compositesb.2011.01.007
复制
发表时间:
2011-06
期刊:
影响因子:
--
通讯作者:
Feng, Ji-Cai
中科院分区:
文献类型:
--
作者:
Wang, Bing;Wu, Lin-Zhi;Ma, Li;Feng, Ji-Cai
In this paper, low-velocity impact characteristics and residual tensile strength of carbon fiber composite lattice core sandwich structures are investigated by experimentally and numerically. Low-velocity impact tests and residual tensile strength tests are performed using an instrumented drop-weight machine (Instron 9250HV) and static test machine (Instron 5569), respectively. The FE (finite element) software, ABAQUS/Explicit is employed to simulate low-velocity impact characteristics and predict residual tensile strength of carbon fiber composite lattice core sandwich structures. These numerical investigations create a user-defined material subroutine (VUMAT) to enhance the damage simulation which includes Hashin and Yeh failure criteria. The impact contact force and the tensile strength are accurately estimated using the present method. From results of this paper, the degradation of residual tensile strength can be divided to three stages for different impact energies, and amplitudes of degradation are affected by stacking sequences.
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DOI:
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发表时间:
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影响因子:
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作者:
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