摘要
This study focused on the impact behavior of carbon-fiber-wrapped composite cylinders subjected to impact from flat-ended, hemispherical-nosed and conical-nosed impactors. Damage morphologies of the cylinders and mechanisms of the damage were analyzed. Change laws of the maximum impact forces, durations of impact processes and energies absorbed by the cylinders after impact with different impactors and impact energies were obtained. A finite element model was developed and the simulation results were in reason- able agreement with the tests. Finally, taking the flat-ended impactor as an example, stress distributions of the cylinders under pressurization and impact were discussed.
This study focused on the impact behavior of carbon-fiber-wrapped composite cylinders subjected to impact from flat-ended, hemispherical-nosed and conical-nosed impactors. Damage morphologies of the cylinders and mechanisms of the damage were analyzed. Change laws of the maximum impact forces, durations of impact processes and energies absorbed by the cylinders after impact with different impactors and impact energies were obtained. A finite element model was developed and the simulation results were in reason- able agreement with the tests. Finally, taking the flat-ended impactor as an example, stress distributions of the cylinders under pressurization and impact were discussed.
作者
Qiaoguo Wu
Xuedong Chen
Zhichao Fan
Yong Jiang
Defu Nie
qiaoguo Wu;Xuedong Chen;Zhichao Fan;Yong Jiang(Defu Nie National Safety Engineering Technology Research Center for Pressure Vessels and Pipelines, Anhui Key Laboratory of Composite Technology for General Machinery, Hefei General Machinery Research Institute, Hefei 230031, China)
基金
supported by National Natural Science Foundation of China (no.:51305122)
National Key Research and Development Program of China (no.:2016YFC0801902)
Anhui Provincial Natural Science Foundation (no.:1608085ME111)
Anhui Province Scientific and Technical Problem Tackling Plan (no.:1604a0902163)
