| 基于能量观点的半刚性基层裂缝扩展模拟及预裂缝技术研究 |
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| 引用本文： | 蔡荣坤,张志定. 基于能量观点的半刚性基层裂缝扩展模拟及预裂缝技术研究[J]. 广东交通职业技术学院学报, 2011, 10(3): 1-5 |
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| 作者姓名： | 蔡荣坤 张志定 |
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| 作者单位： | 广东韶赣高速公路粤境段管理处,广东韶关,512001 |
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| 基金项目： | 交通部科研项目韶赣高速公路关键技术研究(项目编号:粤公研韶2007-3) |
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| 摘 要： | 文中基于能量的观点，采用了内聚力模型CZM，并借助ABAQUS有限元软件，通过室内确定力学指标，对半刚性基层的道路结构在实际环境和荷载影响下裂缝的扩展模型进行模拟研究。模拟的结果显示，裂缝间距越小，系统蓄积的能量也越小，根据能量最小原理，系统的能量越小，整个系统越稳定；另外研究显示，基层裂缝的最佳分布模式是由多条细裂缝...
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| 关 键 词： | 能量 半刚性基层 裂缝 模拟 预裂缝 CZM模型 |
A Research Based on the Energy Viewpoint of Semi-rigid Base and Pre-fracture Crack Propagation Simulation Technique |
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| CAI Rong-kun,ZHANG Zhi-ding. A Research Based on the Energy Viewpoint of Semi-rigid Base and Pre-fracture Crack Propagation Simulation Technique[J]. Journal of Guangdong Communication Polytechnic, 2011, 10(3): 1-5 |
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| Authors: | CAI Rong-kun ZHANG Zhi-ding |
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| Affiliation: | CAI Rong-kun,ZHANG Zhi-ding(Shaogan Expressway Guangdong Management office,Shaoguan 512001,China) |
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| Abstract: | Based on the viewpoint of energy,this paper use the CZM(Cohesive Zone Model),together with the ABAQUS finite element software,through the indoor mechanical index,to conduct a research on the semi-rigid base road construction's crack extension model under the situation of practical environment.The result shows,the smaller the crack space is,the less energy can the system store.According to the energy-minimization principle,the less energetic a system is,the more steady it will be.Another research shows that ... |
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| Keywords: | energy semi-rigid base crack simulation pre-crack CZM |
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