Fracture toughness test facilities
Test Machine
|
Type
|
Maximum load,
kN
|
Load range
kN
|
Test temperature
range, °C
|
Other facilities
|
| Baldwin (E)
|
Servo-hydraulic universal
|
±1750
|
0-1750
|
+400 to -196
|
Crosshead movement 250mm
|
| Instron (E)
|
Servo-hydraulic universal
|
±500
|
±500
|
+400 to -196
|
Dynamic tests, fatigue tests. Load, ram, clip gauge or computer control
|
| Schenk (E)
|
Servo-electric universal
|
±250
|
±250
|
+400 to -196
|
Slow strain tests, fatigue tests. Load, ram clip gauge or computer control
|
| Dartec (G)
|
Servo hydraulic universal
|
±2000
|
±2000
|
+400 to -196
|
Fatigue tests. Load, ram, clip gauge or computer control 450mm stroke
|
| Shimadzu Autograph
(E)
|
Servo electric universal
|
±10
|
±10
|
+400 to -196
|
Low, loading: plastics
displacement, strain control 420mm test width
1.1m crosshead displacement
|
| Dartec (E)
|
Servo hydraulic universal
|
±250
|
±250
|
+400 to -196
|
Dynamic tests, fatigue tests. Load, ram, clip gauge or computer control
|
| Instron (E)
|
Servo-hydraulic universal
|
±20
|
±20
|
+400 to -196
|
Fatigue tests. Load, ram, clip gauge or computer control
|
| Instron (E)
|
Servo-hydraulic universal
|
±100
|
±100
|
+400 to -196
|
Dynamic tests, fatigue tests. Load, ram, clip gauge or computer control
|
| Instron (E)
|
Servo-hydraulic universal
|
±0.5
|
±0.5
|
+400 to -196
|
Low load static testing
|
| Instron (E)
|
Servo-hydraulic universal
|
±100
|
±100
|
+400 to -196
|
Dynamic tests, fatigue tests. Load, ram, clip gauge or computer control
|
Impact testing machines
| Pellini dropweight machine (E)
|
Max energy: 1350J (1000ft lbs)
Max drop height: 3.35m (11ft)
Specimen sizes P1, P2, P3
Temperature range: -196 to +100°C
|
|
| TWI high speed dropweight machine (U)
|
Max energy: 6kJ
Max drop height: 10.4m
Max speed to impact: 33 miles/hour
Temperature range: -106 to +100°C
|
This machine uses a small computer in conjunction with a transient recorder to monitor the testing
|
| Rosand instrumented dropweight machine (E)
|
Max energy: 1400J
Max drop height: 3m
|
This machine uses a small computer in conjunction with a transient recorder to monitor the testing
|
| TWI high speed drop weight machine (U)
|
Max energy: 50kJ
Max drop height: 7.0m
Temperature range: -150 to +100°C
|
This machine mainly used for drop weight tear testing.
|
| Zwick (E)
|
Max energy: 1 or 4J
Max energy: 7.5 or 25J
|
Impact and tensile testing on plastics
|
Large scale rigs
| TWI 3500tf wide plate testing machine (U*)
|
Max load: 35MN
Stroke: 70mm (2.7in)
Single acting cylinders static load only
Load/displacement/strain control
Servo or manual control
Plate sizes up to 0.9m (3ft) square
Temperature range: -196 to +150°C
|
| TWI 1250tf biaxial wide plate rig (U)
|
Max static load: 40MN
Max fatigue load: 20MN
Load/displacement/strain control
Fatigue frequency: 0.25Hz
Servo or manual control
Double acting cylinder 100mm (4in) stroke plate sizes up to 0.9m, (3ft) square
Temperature range: -196 to +150°C
Both wide plate rigs can be computer controlled, to make them suitable for time dependent work
|
| TWI 1250tf biaxial wide plate rig (U)
|
Max load: 12.5MN
Single acting cylinders
Static load
Load/displacement/strain control
Plate size 0.5m2
Temperature range –100 to +150°C
|
TWI large pipe bend test rig (G)
|
Max load: 6000 kN
4 point bend rig. 1000mm max od pipe.
Single acting cylinders, 300mm stroke
Static load
Load control
Temperature range –100 to +150°C
|
| TWI 800tf tubular joint tensile rig (E)
|
Max. load 8MN
Max. fatigue load 6MN
Load/displacement/strain control
Servo control
|
