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Structural fracture assessment processing method suitable for discontinuous area

A continuous area, evaluation and processing technology, applied in data processing applications, electrical digital data processing, special data processing applications, etc., can solve problems such as unfavorable applications, high professional knowledge requirements, time-consuming, etc., to improve efficiency and avoid technical requirements. , the effect of ensuring safe operation performance

Pending Publication Date: 2021-01-15
LINGAO NUCLEAR POWER +3
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  • Description
  • Claims
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Problems solved by technology

Usually, the establishment of a finite element model of a structural discontinuity region, especially a finite element model with defects, is not only time-consuming, but also requires high professional knowledge of relevant technical personnel, which is not conducive to engineering applications

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  • Structural fracture assessment processing method suitable for discontinuous area
  • Structural fracture assessment processing method suitable for discontinuous area
  • Structural fracture assessment processing method suitable for discontinuous area

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a structural fracture assessment processing method suitable for a discontinuous area, and the method comprises the following steps: S1, building a finite element analysis modelthrough employing a computer based on the material characteristics and geometric characteristics of a to-be-assessed discontinuous area, carrying out the numerical simulation analysis, and obtaininga discontinuous area stress calculation impact function; S2, carrying out regularization processing of defect types and shape parameters of the to-be-evaluated discontinuous area to determine stress characteristics of defect positions distributed in the wall thickness direction, and then calculating crack front edge fracture parameters; and S3, comparing a calculation result of the crack front edge fracture parameter in the step S2 with an evaluation criterion in an industry evaluation standard, and carrying out structural elastic-plastic fracture evaluation. According to the method, the technical requirements of engineering rapid and accurate evaluation are met, and related technologies can be applied to online safety monitoring of key equipment of a nuclear power plant and conditions with related rapid evaluation technical requirements.

Description

technical field [0001] The invention relates to the field of on-line safety monitoring of nuclear power plant equipment, in particular to a structural fracture evaluation and processing method suitable for discontinuous areas. Background technique [0002] Reactor Pressure Vessel (hereinafter referred to as RPV), steam generator and other key components of nuclear power plants are nuclear safety first-class components. Defects will inevitably appear, and these factors will have a serious impact on the safe operation of nuclear power plants. At the same time, there are obvious stress concentrations in the structural discontinuity areas of these parts. Therefore, it is necessary to make an accurate assessment of the reliability of the structural discontinuity areas of key equipment. [0003] At present, the design and in-service evaluation codes of nuclear power plants mainly provide safety assessment methods for structurally continuous areas. For the structurally discontinuo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06Q10/06G06Q50/06G06F119/02G06F119/14
CPCG06F30/23G06Q10/0635G06Q50/06G06F2119/02G06F2119/14
Inventor 王春辉池志远安英辉方奎元陈明亚余伟炜薛飞陈志林高红波黄平张晏玮
Owner LINGAO NUCLEAR POWER
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