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Construction method of grouting material three-dimensional random defect model developed based on ABAQUS python script

A defect model and construction method technology, applied in the field of construction, can solve problems such as the inability to define material properties, the inability of the calculation model to reflect the randomness of defects, and the cumbersome process, and achieve the effect of a fast and efficient technical approach

Active Publication Date: 2021-08-31
SOUTHEAST UNIV
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Problems solved by technology

From the above, it can be seen that the research at this stage has achieved certain results, but there are still many shortcomings; for example, there is a certain degree of difference between the assumption of homogenization defects and the actual project, and the distribution, size and shape of defects in the grouting material should be random. , the calculation model of fixed defect size cannot reflect the randomness of defect generation
Moreover, most random defect modeling relies on computer languages ​​such as Matlab and C++. These languages ​​can only establish geometric models, but cannot define material properties. It is necessary to import the established geometric models into finite element software for subsequent finite element analysis. cumbersome, reducing computational efficiency

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  • Construction method of grouting material three-dimensional random defect model developed based on ABAQUS python script
  • Construction method of grouting material three-dimensional random defect model developed based on ABAQUS python script
  • Construction method of grouting material three-dimensional random defect model developed based on ABAQUS python script

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[0026] The present invention is described in further detail now in conjunction with accompanying drawing. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "left side", "right side", "upper", "lower" are based on the orientations or positional relationships shown in the drawings, and are only For the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first", "second" and the like do not represent components importance, and therefore should not be construed as limiting the invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.

[0027] At present, most random defect modeling is based...

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Abstract

The invention relates to a grouting material three-dimensional random defect model construction method based on ABAQUS python script development. The method comprises the steps of grouting defect grading random number generation, random sphere generation, random sphere interference judgment and random sphere putting. Random spheres are used for simulating pore defects generated in the construction process of a grouting material, the content of internal pores is controlled by changing the diameter and the number of the random spheres, and the complex defects are combined with an ABAQUS script to establish a geometric model; the method is close to the randomness requirement of defects generated on the construction site, the analysis process is simplified, and the calculation efficiency is improved.

Description

technical field [0001] The invention relates to a method for constructing a three-dimensional random defect model of a grouting material developed based on an ABAQUS python script, and belongs to the technical field of construction. Background technique [0002] The grouting material is affected by on-site factors such as temperature, mix ratio, and vibration time during the construction process, resulting in pore defects that greatly increase the risk of damage to prefabricated buildings. Considering the randomness of the distribution, shape and size of pores inside the grouting material, the algorithm for effectively simulating random defects is the key to establishing a three-dimensional random defect model of grouting materials; It is difficult to make further breakthroughs in the research on three-dimensional random defects of grouting materials. Based on the algorithm for simulating random defects, a reasonable calculation model is selected for finite element analysis...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/25
CPCG06F30/23G06F30/25
Inventor 陈力张永杰唐柏鉴徐睿智
Owner SOUTHEAST UNIV