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首页> 外文会议>Second Biot Conference on Poromechanics Aug 26-28, 2002 Grenoble, France >Development of a new concrete damage model MODEV in SYMPHONIE F.E. code: Application to metallic anchor bolts
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Development of a new concrete damage model MODEV in SYMPHONIE F.E. code: Application to metallic anchor bolts

机译：在SYMPHONIE F.E.代码中开发新的混凝土损伤模型《 MODEV》：在金属地脚螺栓上的应用

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摘要

The present research work aims at the development of a reliable and predictive model for the virtual evaluation of concrete structures, especially for the evaluation of metal anchors in concrete slabs. This work was motivated by the observation of the incapacity of existing models toward the reliable prediction of loads and ultimate displacements under a complex state of stresses, particularly for the mixed modes 1 & 2; it is notably the case of shear behaviour of metal anchors in concrete slabs. Different models of concrete behaviour, more or less detailed, were found in the literature. But generally, compared to the modelling, they are either not predictive for cases of complex loads, or very complicated and cumbersome, thus non-exploitable for industrial cases. Due to this observation, the choice to develop a new model was made. This new model is based on certain hypothesis of deformation mechanisms relative to the diverse aspect of the concrete. After its 2D & 3D implementation in the SYMPHONIE software, the model was tessed and compared with test and other theoretical results, under various scenarios found in the literature, in order to estimate its answer toward a wide combination of requests. The model shows a good capacity to predict both qualitatively and quantitatively the shear behaviour of these metal anchors.
机译：目前的研究工作旨在为混凝土结构的虚拟评估，尤其是混凝土板中的金属锚的评估，开发可靠的预测模型。这项工作的动机是观察到现有模型无法在复杂应力状态下可靠地预测载荷和最终位移，特别是对于混合模式1和2；特别是在混凝土板中金属锚的剪切行为。在文献中发现了或多或少详细的混凝土行为的不同模型。但是通常，与建模相比，它们对于复杂负载的情况不能预测，或者非常复杂且繁琐，因此对于工业用例是无法利用的。由于这种观察，做出了开发新模型的选择。这个新模型基于相对于混凝土不同方面的变形机理的某些假设。在SYMPHONIE软件中将其2D和3D实现后，对该模型进行了整理，并与文献中发现的各种情况下的测试结果和其他理论结果进行了比较，以估计其对各种要求的回答。该模型显示出很好的能力来定性和定量地预测这些金属锚的剪切行为。

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