2000N tension stress testing equipment

2000N tension stress testing equipment

single column computer control electronic tensile testing machine

1 Introduction

l  Suitable for tension, compress, shear, peeling, tear, test

l  Attractive appearance, easy operating, stable and reliable

l  Dual test space, upper space for tension test, bottom space for compress test

l  Crossbeam speed can reach up to 1000mm/min, suitable for most test speed

l  Low noise during test

l  Suitable for industries of metal manufacturing, non-metal manufacturing, industrial and mining enterprises, technical supervision, commodity inspection and arbitration and other departments

2. Test method

GB/T 2611 testing machine General technical requirements

GB/T 16491 electronic universal testing machine

GB/T 13634  Calibration of standard dynamometer for single-axis testing machine inspection

ISO 376 Metallic materials-calibration of force-proving instruments used for the verification of uniaxial testing machines

GB/T 16825.1 Inspection of static single-axis testing machines - Part 1 : Tests and s

ISO 7500-1 metallic materials-verification of static uniaxial testing machines- parts 1: tension/compression testing machines-verification and calibration of the force-measuring system

GB/T 228 metal materials tensile test method at room temperature

GB/T 232 metal material bending test method

GB/T 7314 metal materials room temperature compression test method

 

3. Technical parameters

No

Item

Specification

1

Force capacity

100N,200N,500N,1000N,2000N,5000N

2

Force measuring range

0.4%-100%FS

3

Error of force value

Less than ±1% of set value

4

Resolution of test force

1/500000

5

Displacement resolution

0.0025mm

6

Accuracy of elongation measuring

±0.5%

7

Crossbeam speed range

0.05-500mm/min

8

Precision of displacement speed control

±1%(0.01-10mm/min); ±0.5%(10-500mm/min)

9

Accuracy of constant force, constant displacement, displacement   elongation control

When set value is less than 10%FS,error is less than ±1.0% of set value

When set value is more than 10%FS,error is less than ±0.1% of set value

10

Accuracy of deformation control

When set value is less than 0.05%FS,error is less than ±2.0%   of set value

When set value is more than 0.05%FS,error is less than ±0.5%   of set value

11

Distance between tensile grips

650mm

12

Voltage

Single phase,220V±10%,50Hz

13

Dimension

520x480x1550mm

14

Weight

80kg

How to Select the Right Tensile, Compression, Bending, Shear, Peel, and Tear Testing Machine: Calculation Formulas with Examples

Selecting the appropriate testing machine for tensile, compression, bending, shear, peel, and tear tests requires careful consideration of multiple factors, including the force range, specimen dimensions, test standards, and machine capabilities. Below are the key calculation formulas to help determine the necessary machine specifications, along with examples for better understanding.

1. Tensile Testing Machine Selection

Tensile testing machines measure the maximum tensile strength and elongation of materials.

Key Formula:

Fmaxmax × A

Where:

Fmax = Maximum required force (N)

σmax = Ultimate tensile strength of the material (MPa)

A = Cross-sectional area of the specimen (mm²)

Example: For a steel specimen with σmax =400MPa and cross-sectional area A =100mm²:

Fmax=400 × 100=40,000N (40kN)

A 50 kN tensile testing machine would be suitable.

 

2. Compression Testing Machine Selection

Compression tests determine a material's resistance to compressive forces.

Key Formula:

Fmaxc × A

 

Where:

Fmax = Maximum required force (N)

σc = Compressive strength of the material (MPa)

A = Cross-sectional area of the specimen (mm²)

Example: For a concrete cube with σc =30MPa and A =1502=22,500mm²:

Fmax=30 × 22,500=675,000N (675kN)

A 1000 kN compression testing machine would be ideal.

 

3. Bending Testing Machine Selection

Bending tests evaluate the flexural strength of materials.

Key Formula for Three-Point Bending:

image.png

Where:

σf = Flexural stress (MPa)

F= Applied force (N)

L= Span length (mm)

b= Width of the specimen (mm)

h= Thickness of the specimen (mm)

Example: For a wooden beam with L=500mm, b=50mm, h=25mm, and requiring a stress of 10 MPa:

image.png

A 5 kN bending tester would be suitable.

4. Shear Testing Machine Selection

Shear tests determine the shear strength of materials.

Key Formula:

Fmax=τ × A

Where:

Fmax = Maximum shear force (N)

τ= Shear strength of the material (MPa)

A = Shear area (mm²)

Example: For an aluminum sheet with τ=90 MPa and A=200mm²:

Fmax=90×200=18,000N(18kN)

A 20 kN shear testing machine is recommended.

 

5. Peel Testing Machine Selection

Peel tests measure the adhesion strength between bonded materials.

Key Formula:

image.png

Where:

P= Peel strength (N/mm)

F= Measured force (N)

W= Width of the specimen (mm)

Example: For a tape with F=50N and W=25mm:

image.png

A peel testing machine with at least 5 N force capacity is required.

 

6. Tear Testing Machine Selection

Tear tests determine the resistance of a material to tearing forces.

Key Formula:

image.png

Where:

Ftear= Tear strength (N/mm)

F= Measured force (N)

t= Thickness of the specimen (mm)

Example: For a rubber sheet with F=100N and t=2mm:

image.png 

A tear testing machine with 100 N capacity is needed.

 

When selecting a testing machine, ensure that the maximum force capacity of the machine is at least 1.2 to 1.5 times the calculated force to account for safety margins and unexpected variations. Additionally, consider compliance with relevant test standards (ASTM, ISO, GB, EN, JIS) and machine features such as speed control, data acquisition, and test automation.

By using the above formulas and examples, engineers and manufacturers can accurately determine the appropriate testing machine specifications for their specific material and application requirements.