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

Plate strip tension simulation device suitable for universal tensile testing machine

A tensile testing machine and simulation device technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of inaccurate calculation, too many assumptions, complicated calculation models, etc., and achieve economical savings. Assembly time, simple and reasonable structure, and the effect of improving experimental efficiency

Active Publication Date: 2020-01-10
TAIYUAN UNIV OF TECH
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The simulation prediction mainly uses finite element method and influence function method to simulate the rolling process. Due to the high nonlinearity of the rolling process, the mutual coupling of tension and rolling force requires a lot of model simplification, and it is difficult to accurately realize the strip stress field and longitudinal Prediction of residual stress distribution, especially thin strip and extremely thin strip rolling simulation calculation results are difficult to accurately reflect the objective facts; another method of simulation prediction is to conduct modeling research on the strip buckling process, this method realizes the strip buckling process to a certain extent The degree of influence of the stress load on the defects of the strip, the buckling process of the strip is studied by giving the boundary load, but the form of the given boundary load of this method is relatively simple, the calculation model is complicated, there are too many assumptions, and there are also problems of inaccurate calculation
Tension detection is mainly to measure the residual stress distribution of the strip after rolling through the tension detection roller. This method can only detect the distribution of the longitudinal stress field after rolling, and cannot characterize the interaction of longitudinal stress, shear stress, and transverse compressive stress. Realize the research on the evolution law and cause of the stress field in the buckling process of the strip

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
  • Plate strip tension simulation device suitable for universal tensile testing machine
  • Plate strip tension simulation device suitable for universal tensile testing machine
  • Plate strip tension simulation device suitable for universal tensile testing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] like Figure 1 to Figure 12 As shown, a strip tension simulation device suitable for a universal tensile testing machine includes two stretching frames 9 arranged symmetrically up and down, and the stretching frame 9 includes a stretching frame main body 4, and in the stretching frame The middle part of the upper surface of the main body 4 is fixedly provided with a clamping end 2, and the width of the stretching clamping end 2 is l jw 40mm, height l jh 60mm, length l jl 60mm, ribs 3 are respectively fixedly arranged on both sides of the clamping end 2, the lower end of the ribs 3 is fixedly connected with the main body 4 of the stretching frame, and the thickness of the ribs 3 is 1 sw is 7mm. In the middle part of the lower surface of the stretching frame main body 4, a middle groove 12 for clamping the strip 6 is provided, and on the left and right sides of the middle groove 12, side grooves 13 for placing the tension simulation bracket 7 are arranged symmetrically...

Embodiment 2

[0080] like Figure 1 to Figure 12 As shown, a strip tension simulation device suitable for a universal tensile testing machine includes two stretching frames 9 arranged symmetrically up and down, and the stretching frame 9 includes a stretching frame main body 4, and in the stretching frame The middle part of the upper surface of the main body 4 is fixedly provided with a clamping end 2, and the width of the stretching clamping end 2 is l jw 45mm, height l jh 55mm, length l jl 70mm, ribs 3 are respectively fixedly arranged on both sides of the clamping end 2, the lower end of the ribs 3 is fixedly connected with the main body 4 of the stretching frame, and the thickness of the ribs 3 is 1 sw is 8mm. In the middle part of the lower surface of the stretching frame main body 4, a middle groove 12 for clamping the strip 6 is provided, and on the left and right sides of the middle groove 12, side grooves 13 for placing the tension simulation bracket 7 are arranged symmetrically...

Embodiment 3

[0101] like Figure 1 to Figure 12 As shown, a strip tension simulation device suitable for a universal tensile testing machine includes two stretching frames 9 arranged symmetrically up and down, and the stretching frame 9 includes a stretching frame main body 4, and in the stretching frame The middle part of the upper surface of the main body 4 is fixedly provided with a clamping end 2, and the width of the stretching clamping end 2 is l jw 50mm, height l jh 50mm, length l jl 80mm, ribs 3 are respectively fixedly arranged on both sides of the clamping end 2, the lower end of the ribs 3 is fixedly connected with the main body 4 of the stretching frame, and the thickness of the ribs 3 is 1 sw is 10mm. In the middle part of the lower surface of the stretching frame main body 4, a middle groove 12 for clamping the strip 6 is provided, and on the left and right sides of the middle groove 12, side grooves 13 for placing the tension simulation bracket 7 are arranged symmetricall...

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

PropertyMeasurementUnit
Widthaaaaaaaaaa
Heightaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of plate strip tension distribution simulation experiments, and particularly relates to a plate strip tension simulation device suitable for a universal tensile testing machine, which comprises two tension frames which are symmetrically arranged up and down, wherein each tension frame comprises a tension frame main body, a middle groove is formed in the middle ofthe lower surface of the each tension frame main body, side grooves are symmetrically formed in the left side and the right side of the middle groove, tension simulation supports are arranged in theside grooves, angle steel is symmetrically arranged at the front side and the rear side of the upper end and the lower end of a plate strip respectively, one side of the each angle steel is fixedly connected with the plate strip, the other side of the each angle steel is arranged on the corresponding tension simulation support, and the upper end and the lower end of the plate strip are respectively clamped in the two tension frame main bodies. Through adoption of the plate strip tension simulation device of the invention, the angle steel is supported by the variable-height tension simulation support, the nonlinear load effect of the plate strip in a production process is simulated, the change of a stress field of the plate strip in a tension process is detected, and a evolution rule of thelongitudinal stress distribution uneven change of the plate strip in a bending process after rolling on the stress field is researched.

Description

technical field [0001] The invention belongs to the field of simulation experiments of tension distribution of plates and strips, and in particular relates to a strip tension simulation device suitable for a universal tensile testing machine. Background technique [0002] Shape is essentially the distribution of residual stress inside the strip, an important index to evaluate the quality of the strip, and an important problem that plagues the control of the rolling process of the strip, especially an important factor affecting the yield of the thin strip. It is very important to study the distribution and evolution of the internal stress field of the strip during the strip rolling process. [0003] At present, the research on flatness in rolling process is mainly based on simulation prediction method and tension detection method. The simulation prediction mainly uses finite element method and influence function method to simulate the rolling process. Due to the high nonline...

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): G01N3/08G01N3/02G01N3/04
CPCG01N3/08G01N3/02G01N3/04
Inventor 马晓宝王涛任忠凯史汉卿石瑛黄庆学张金柱高翔宇和东平
Owner TAIYUAN UNIV OF TECH