EXPERIMENTAL STUDY ON DYNAMIC COMPRESSIVE FAILURE OF UNIDIRECTIONAL CFRP COMPOSITES(Special Issue on Recent Advances of Composites in Asia and Australasia)

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概要

• 論文の詳細を見る

• Impact compressive tests of the carbon fiber reinforced unidirectional vinyl ester composites were carried out using the split Hopkinson pressure bars. Composites of six different fiber volume fractions were tested. The dynamic stress-strain curves of CFRP were obtained at a strain rate of 10^3s^<-1>. Quasi-static compressive tests of the same specimen were conducted for comparison. Failed specimens under impact loading were examined by SEM(scanning electron microscope). The damage evolution under static loading was recorded by video camera. Test results showed that the compressive failure mechanism changed from shear failure in the unidirectional composites of low fiber volume fraction to kinking and splitting of high fiber volume fraction. The shear failure or kinking occurred on a plane, and the direction of the failure plane was found to depend upon the fiber volume fraction. Experiments also showed that the strain rate has strong effect on the compressive strength.

• 社団法人日本材料学会の論文
• 1999-09-15

著者

• TAKEDA Nobuo

  Center for Collaborative Research (CCR), The University of Tokyo

• Song Dong-yeul

  Center For Collaborative Research University Of Tokyo

• YUAN Jianming

  Center for Collaborative Research, University of Tokyo

• WAAS Anthony

  Department of Aerospace Engineering, University of Michigan

• Waas Anthony

  Department Of Aerospace Engineering University Of Michigan

• Yuan Jianming

  Center For Collaborative Research University Of Tokyo

• Takeda Nobuo

  Center For Collaborative Research University Of Tokyo

関連論文

• Transverse cracking in CFRP cross-ply laminates with interlaminar resin layers
• Experimental characterization of microscopic damage progress in quasi-isotropic CFRP laminates : effect of interlaminar-toughened layers
• Analysis of stress and displacement fields in interlaminar-toughened composite laminates with transverse cracks
• Microscopic fatigue failure process in interleaved and toughness-improved CFRP cross-ply laminates
• EXPERIMENTAL STUDY ON DYNAMIC COMPRESSIVE FAILURE OF UNIDIRECTIONAL CFRP COMPOSITES(Special Issue on Recent Advances of Composites in Asia and Australasia)
• Stress Analysis Near an Interface Crack Tip

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