微细金属Z-pin对复合材料开孔板压缩性能的影响
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宋小文,杜嘉成,费少华,丁会明,王金良,高宇
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Effect of fine metallic Z-pin on compressive property of open-hole composite laminate
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Xiaowen SONG,Jiacheng DU,Shaohua FEI,Huiming DING,Jinliang WANG,Yu GAO
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| 表 3 Cohesive界面属性[19,34] |
| Tab.3 Cohesive interface property |
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| 参数 | 参数值 | | Cohesive单元 | Z-pin Cohesive接触 | | ${K_{ {\text{nn} } } }/({\text{N} }\cdot{\text{mm} }^{-3} )$ | 5×104 | 2188.8 | | $ {K_{{\text{ss}}}},{K_{{\text{tt}}}}/({\text{N}}\cdot{\text{mm}}^{-3}) $ | 5×104 | 10944.1 | | $ \sigma _{\text{n}}^0/{\text{MPa}} $ | 30 | 273.6 | | $ \sigma _{\text{s}}^0,\sigma _{\text{t}}^0/{\text{MPa}} $ | 70 | 789.2 | | $ G_{\rm{n}}^{\rm{C}}/({\text{kJ}}\cdot{{\text{m}}^{{-2}}}) $ | 0.6 | 1103.5 | | $ G_{\rm{s}}^{\rm{C}},G_{\rm{t}}^{\rm{C}}/({\text{kJ}}\cdot {{\text{m}}^{{-2}}}) $ | 1.2 | 1325.5 |
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