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Ultimate bearing capacity analysis method for steel pressure vessel based on yield strength and tensile strength double key points

A technology of ultimate bearing capacity and yield strength, applied in instruments, special data processing applications, electrical digital data processing, etc., can solve problems such as inconvenient engineering application, complicated calculation process, and strict requirements for calculation parameters, and achieve good calculation accuracy and practicality. The effect of the convenience solution method

Inactive Publication Date: 2017-06-20
GUANGXI UNIV
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  • Application Information

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Problems solved by technology

Therefore, the existing numerical methods have the problems of strict requirements for calculation parameters, complicated calculation process, and inconvenient engineering application.

Method used

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  • Ultimate bearing capacity analysis method for steel pressure vessel based on yield strength and tensile strength double key points
  • Ultimate bearing capacity analysis method for steel pressure vessel based on yield strength and tensile strength double key points
  • Ultimate bearing capacity analysis method for steel pressure vessel based on yield strength and tensile strength double key points

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specific example

[0025] This embodiment is a specific example of an analysis method for the ultimate bearing capacity of a steel pressure vessel based on the double key points of yield strength and tensile strength, including the following steps:

[0026] (1) Obtain the geometric parameters, elastic modulus and double key point parameters of the pressure vessel:

[0027] The geometric parameters and elastic modulus of a pressure vessel are shown in Table 1, and the parameters of double key points are shown in Table 2.

[0028] Table 1 Geometric parameters and modulus of elasticity

[0029]

[0030] Table 2 Double key point parameters

[0031] Double Keypoint Parameters Yield Strength tensile strength value 324.00MPa 460.00MPa

[0032] (2) Solve the equivalent yield strength based on double key points

[0033] Based on the double key point parameters obtained in step (1), calculate the equivalent yield strength:

[0034]

[0035] Among them, the hardening in...

Embodiment 2

[0045] This embodiment is another specific example of the ultimate bearing capacity of a steel pressure vessel based on the double key points of yield strength and tensile strength, including the following steps:

[0046] (1) Obtain the geometric parameters, elastic modulus and double key point parameters of the pressure vessel:

[0047] The barrel and connecting pipe of a pressure vessel are made of different materials. The geometric parameters and elastic modulus of the barrel are shown in Table 4, the double key point parameters of the barrel are shown in Table 5, and the geometric parameters and elastic modulus of the connecting pipe are shown in Table 4. 6, and the double keypoint parameters of the takeover are shown in Table 7.

[0048] Table 4 geometric parameters and modulus of elasticity of the cylinder

[0049]

[0050] Table 5 Double key point parameters of cylinder

[0051] Double Keypoint Parameters Yield Strength tensile strength value 3...

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Abstract

Provided is an ultimate bearing capacity analysis method for a steel pressure vessel based on yield strength and tensile strength double key points. The method comprises the following steps: (1) obtaining geometric parameters, elasticity modulus, and double key point parameters of a pressure vessel; (2) based on the double key points, solving equivalent yield strength; (3) based on the equivalent yield strength, solving ultimate bearing capacity of the steel pressure vessel. The method can accurately and rapidly calculate the equivalent yield strength just according to the double key point information, so as to solve the ultimate bearing capacity of the steel pressure vessel. The method overcomes problems of strict calculating parameter requirements, complex calculation process, and inconvenient engineering application since calculating ultimate bearing capacity at present is based on a total constitutive curve. The invention provides a practical and convenient solving method for solving the ultimate bearing capacity of the steel pressure vessel.

Description

technical field [0001] The invention relates to an analysis method for the ultimate bearing capacity of a steel pressure vessel, in particular to an analysis method for the ultimate bearing capacity of a steel pressure vessel based on the double key points of yield strength and tensile strength. Background technique [0002] The ultimate bearing capacity is an important index for the structural design and safety assessment of steel pressure vessels. The strain hardening effect of steel will have a significant impact on the solution results of the ultimate bearing capacity of steel pressure vessels. Some pressure vessel design codes have required that material strain hardening be considered. Structural design and safety assessment to give full play to the bearing capacity of steel. Therefore, it is necessary to carry out research on the calculation method of the ultimate bearing capacity of steel pressure vessels considering the strain hardening of materials, so as to carry o...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F2119/06
Inventor 张伟叶征远陈正张阳李伟
Owner GUANGXI UNIV
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