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Carbon fiber reinforced cement is a multifunctional composite material owing to its conductive behavior. This paper presents a model for quantitative analysis of the conductive mechanism. The model is based on the concept that the electronic conduction dominates when the composite is in dry state and is a combination of ohmic contacting conduction and tunnel transmission conduction. Therefore, Ohm’s law and tunnel effect theory are employed in the modeling process. Good agreement is found between theoretical and experimental results. For additional investigation, the model is applied in simulating the strain sensing characteristics. Numerical results are shown and they are compared with measured data obtained under compressive loading, which provides further support to the model. [ Last edited by qingshaojun0823 on 2009-10-24 at 18:01 ] |
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goodtimega
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linghanyuan(金币+2,VIP+0):鼓励新虫 10-14 11:13
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linghanyuan(金币+2,VIP+0):鼓励新虫 10-14 11:13
| Carbon fiber reinforced cement is a multifunctional composite material owing to its conductive behavior. This paper presents a model for quantitative analysis of the conductive mechanism. The model is based on the concept that the predominant contribution to the electronic conduction is when the composite is in dry state and is a combination of ohmic contacting and tunnel transmission conduction. Therefore, Ohm’s law and tunnel effect theory are employed in the modeling process. Good agreement is found between theoretical and experimental results. Furthermore, the model is applied in simulating the strain sensing characteristics. Numerical results are shown and compared with measured data obtained under compressive loading. The agreement between experimental and theoretical results provides further support to the model. |
4楼2009-10-13 09:15:20
2楼2009-10-12 17:52:24
maming1306
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3楼2009-10-12 18:02:30
| Carbon fiber reinforced cement is a multifunctional composite material owing to its conductive behavior. This paper presents a model for quantitative analysis of the conductive mechanism. The model is based on the concept that the predominant contribution to the electronic conduction is when the composite is in dry state and is a combination of ohmic contacting and tunnel transmission conduction. Therefore, Ohm’s law and tunnel effect theory are employed in the modeling process. Good agreement is found between theoretical and experimental results. Furthermore, the model is applied in simulating the strain sensing characteristics. Numerical results are shown and compared with measured data obtained under compressive loading. The agreement between experimental and theoretical results provides further support to the model. |
5楼2009-10-19 21:57:03