Unlock instant, AI-driven research and patent intelligence for your innovation.

Constraint-considered method for predicting inoculation period of unilateral crack tensile sample

A technology for tensile samples and prediction methods, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems that the influence of incubation period has not been studied, and achieve simplified incubation period prediction methods and accurate and reliable prediction data Effect

Pending Publication Date: 2019-07-02
TIANJIN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of this prediction model involves a large number of complex calculation processes and has a certain degree of conservatism, and there are certain limitations for the application of actual components.
Moreover, the effect of the restraint effect of the structure on the incubation period has not been studied; in recent years, researchers have conducted a lot of research on the influence of the restraint effect on the growth of creep cracks.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Constraint-considered method for predicting inoculation period of unilateral crack tensile sample
  • Constraint-considered method for predicting inoculation period of unilateral crack tensile sample
  • Constraint-considered method for predicting inoculation period of unilateral crack tensile sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In this embodiment, P92 high-temperature heat-resistant steel is selected.

[0019] The incubation period prediction method of the unilateral crack tensile specimen considering restraint of the present invention comprises the following steps:

[0020] S1: if figure 1 As shown, the creep incubation period prediction model of the unilateral crack tensile specimen is established. An upper hole 2 and a lower hole 3 are arranged symmetrically at the ends; a prefabricated crack 4 is inserted on one side of the symmetrical surface of the unilateral cracked tensile sample body 1, and a constant pressure load is applied in the upper hole 2 and the lower hole 3;

[0021] S2: Establish finite e...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a constraint-considered method for predicting inoculation period of unilateral crack tensile sample, which utilizes a large amount of simulation data to fit and propose an inoculation period prediction model of a crack-containing single-side crack tensile sample. The method for predicting the single-side crack tensile sample crack inoculation period has the beneficial effects that the model for predicting the single-side crack tensile sample crack inoculation period is provided, and the design method can be used for simplifying the model for the single-side crack tensile sample crack inoculation period.

Description

technical field [0001] The present invention relates to the critical evaluation of the incubation period prediction project of the unilateral crack tensile specimen (SENT) considering the restraint influence, or, when it is determined that the unilateral crack tensile specimen (SENT) contains cracks, evaluate the unilateral crack Incubation period of tensile specimens. Background technique [0002] Components and equipment serving in high-temperature environments will inevitably have various defects during production and service. The initiation and propagation of creep cracks is a major failure mechanism of high-temperature components containing defects and leads to failure before the design life. The incubation period of creep cracks occupies a large proportion in the service life of high-temperature components. In order to ensure the reliability of components serving in high-temperature environments, the research on the incubation period of creep cracks becomes more and m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 徐连勇邬栋权荆洪阳韩永典赵雷吕小青
Owner TIANJIN UNIV