Material Strength Testing Machine Computerized
1. introduction
This universal testing machine for all kinds of metal materials, non-metallic materials and geotextile fabrics, steel-plastic geogrid, plastic grille and other materials, the tensile, bending, shear, tear Crack, top broken, punctured, peeling test. It can save automatically and manually after test, calculate the max. force value, upper and lower yield strength, hysteresis loop. Step-by-step approach method, non-proportional elongation intensity, tensile and compression strength, arbitrary spot elongation strength, arbitrary spot load elongation, elastic module, elongation percentage, peeling interval max. value, min. value and average value, net energy value, turn back energy, total energy, bending module, breakpoint displacement x% load, breakpoint displacement x% displacement, and so on. With a multi-functional, automatic, light weight, easy operation, high precision.
2. specification
| Model | WTD-5/10/20/50 | WTD-100 | WTD-200/300 | WTD-500/600 |
| Max. capacity(kN) | 5/10/20/50 | 100 | 200/300 | 500/600 |
| Measuring range | 1%~100%FS(0.4%-100%FS) |
| Grade | Grade 1(Grade 0.5) |
| Force resolution | 1/400000 |
| Deformation measuring range | 2%~100%FS |
| Relative error of deformation value | +/-1%(+/-0.5%) |
| Deformation resolution | 1/400000 |
| Force speed | 0.01-50 kN/s |
| Deformation speed | 0.01-30mm/min |
| Displacement speed | 0.01-500mm/min (can be 1000mm/min) | 0.01-300mm/min | 0.01-250mm/min |
| Tensile fixture for round and flat specimen | Standard one set tensile fixture for round specimen, one set tensile fixture for round specimen, one set of compression platen, other test fixture can be equipped according to client’s requirement or relative test method |
| Extensometer | According to test materials or client’s requirement |
| High and low temperature test | According to relative test method or client’s requirement |
| Max. stroke of crossbeam | 1090mm | 1070mm | 1140mm | 1200mm |
| Effective tensile space (equip with metal tensile fixture) | 800mm | 700mm | 600mm | 600mm |
| Distance between columns | 430mm | 550mm | 600mm | 625mm |
| Power | 220V,1.0kw | 220V,2kw | 220V,3kw | 380V,4kw |
| Dim. Of loading frame(cm) | 79x43x186 | 92x50x198 | 110x60x241 | 130x87x250 |
| Weight | 400kg | 700kg | 1150/1250kg | 2500kg |
3. parameters can be measured
For tensile test, the universal testing machine can measure following parameters according to different materials (not limit to the following):
Elongation: increase in the original gauge length at any moment during the test
Percentage elongation: elongation expressed as a percentage of the original gauge length
Percentage permanent elongation: increase in the original gauge length of a test piece after removal of a specified stress, expressed as a percentage of the original gauge length
Percentage elongation after fracture: permanent elongation of the gauge length after fracture, expressed as a percentage of the original gauge length
Extensometer gauge length: initial extensometer gauge length used for measurement of extension by means of an extensometer
Extension: increase in the extensometer gauge length at any moment during the test
Percentage extension/ strain: extension expressed as a percentage of the extensometer gauge length
Percentage permanent extension: increase in the extensometer gauge length, after removal of a specified stress from the test piece, expressed as a percentage of the extensometer gauge length
Percentage yield point extension: in discontinuous yielding materials, the extension between the start of the yielding and the start of uniform work-hardening, expressed as a percentage of the extensometer of the extensometer gauge length
Percentage total extension at maximum force: total extension (elastic extension plus plastic extension) at maximum force, expressed as a percentage of the extensometer gauge length
Percentage plastic extension at maximum force: plastic extension at maximum force, expressed as a percentage of the extensometer gauge length
Percentage total extension at fracture: total extension (elastic extension plus plastic extension) at the moment of fracture, expressed as a percentage of the extensometer gauge length
Maximum tensile force: highest force that the test piece withstands during the test
Stress: at any moment during the test, force divided by the original cross-sectional area of the test piece
Tensile strength: stress corresponding to the maximum force
Yield strength: when metallic material exhibits a yield phenomenon, stress corresponding to the point reached during the test at which plastic deformation occurs without any increase in the force
Upper yield strength: maximum value of stress prior to the first decrease in the force
Lower yield strength: lowest value of stress during plastic yielding, ignoring any initial transient effects
Proof strength/ plastic extension: stress at which the plastic extension is equal to a specified percentage of he extensometer gauge length
Proof strength, total extension: stress at which total extension (elastic extension plus plastic extension) is equal to a specified percentage of the extensometer gauge length
Permanent set strength: stress at which, after removal of force, a specified permanent elongation or extension, expressed respectively as a percentage of original gauge length, or extensometer gauge length, has not been exceeded.
Modulus of elasticity: quotient of change of stress and change of percentage extension in the range of evaluation, multiplied by 100%
For compression test, this universal testing machine can measure following (not limit to the following):
Compression stress,
proof strength, non-proportional compression,
proof strength, total compression,
compressive yield strength,
upper compressive yield strength,
lower compressive yield strength,
compressive strength,
compressive modulus of elasticity
The universal testing machine can also make bending and flexural test, shear test, peel test, high and low temperature test, assurance loading test, wedge test, etc. if equipped with relative test fixtures.
4. software introduction
- Easy to control and friendly interface
windows based interface, easy and fast to reach different functions, suitable for most of operators using habits. Integrated all common operation functions, like specimen information input, specimen choosing, curve plotting, data display, data process, data analysis, test operation etc., easy and convenient to operate.
- Full digital display and computer control
Adopting remote controller, fast response and reliable to parameter gathering. Realize digital adjustment and zeroing of load, deformation and displacement as well as PID parameter adjusting.
- Different control mode & speed setting
- Programmable control mode
Users can program test mode according to their own requirements.
- Load holding facility for a specific period:
Report is editable
