Advanced Mechanical Testing Facility
Advanced Mechanical Testing Facility
Make
1.Planar Biaxial System – 100kN, 2.Axial Torsion Test System-250kN/2000Nm, 3.Axial Fatigue System- 100kN, 4.Rotary Bending Fatigue System- 20Nm
Model
1.MTS Systems Corporation, 2.Planar Biaxial Test MTS Systems Corporation, 3. 809 Axial Torsion test system,4.MTS Systems Corporation,Landmark 100 kN Servo Hydraulic system,M/s.Sushma Industries,4.Rotary bending fatigue system
Facility Status
Working
Facility Management Division
Institute Central Research Facilities (ICRF- IoE Funded*)

Category

  • Material Characterization » Mechanical Characterisation

Booking Details

Booking available for
Internal and External Both

Facility Management Team and Location

Faculty In Charge
Name : Prof. Sushil Mishra
Email : sushil.mishra@iitb.ac.in
Co-convenors
Prof. Sushil Mishra
Prof. K Narasimhan
Prof. Chandra S. Yerramalli
Prof. Prakriti Tayalia
Prof. Krishna N. Jonnalagadda
Prof. Asim Tewari
Prof. Rakesh G. Mote
Prof. Tanmay K. Bhandakkar
Prof. Parag Tandaiya
Prof. B Ravi
Prof. Dharamveer Singh
Department
Mechanical
LAB Email ID
amtf@iitb.ac.in
Facility Location
Ground Floor:23, Mechanical Engg, Dept.

Facility Features, Working Principle and Specifications

Features Working Principle

Features :

 1. Planar Biaxial System – 100kN:

This system employs multiaxial loading technology to apply and measure in-plane stresses in both the X and Y axes

a) Strain measurement

 Using DIC and Video extensometer

High Temperature Test Facility Upto 600oC

2. Axial Torsion Test System-250kN/2000Nm:

 a) Video extensometer:

This is an Optical (non-contact) instrument to measure strain on specimen.

b) Electronic extensometer 

Room Temperature:

Fixed gauge length: 25 mm (max. elongation  50% of gauge length)

Variable gauge length: 10, 15, 20, 25, 30, 35, 40, 45, 50 mm

5 mm and 10 mm dynamic extensometer

High Temperature (up to 14000C ):

Gauge length: 12mm (Max. elongation +20%/-10%)

Multi-axial Extensometer: 

Gauge length: 25 mm

c) Clip on gauge or CTOD gauge

Gauge length: 5 and 12 mm

d) Environmental chamber

Temperature Range:  -120 0C to +350 0C

e) Furnaces

Two zone furnace: 1000-14000  C ( Min. Gauge Length: 120mm)

Three zone furnace: 1000-14000  C (Min. Gauge length: 250mm)

f) Three Point and Four Point bend fixtures

Span: 38-305 mm

3. Axial Fatigue System- 100kN:

a) Video extensometer

This is an Optical (non-contact) instrument to measure strain on specimen.

b) Electronic extensometer

Room Temperature:

Fixed gauge length: 25mm (max. elongation  50% of gauge length)

Variable gauge length: 10, 15, 20, 25, 30, 35, 40, 45, 50 mm

5 mm and 10 mm dynamic extensometer

High Temperature (up to 14000C ):Gauge length: 12mm (Max. elongation +20%/-10%)

c) Clip on gauge or CTOD gauge

Gauge length: 5 and 12 mm

d) Environmental chamber

Temperature Range:  -120 0C to +350 0C

e) Furnaces:

Two zone furnace: 1000-14000 C( Min. Gauge Length: 120 mm)

Three zone furnace: 1000 -14000 C (Min. Gauge length: 250 mm)

f) Three Point and Four Point bend fixtures

Minimum Span: 38 mm

Maximum Span: 305 mm

g) MTS High temperature grips for Threaded and Shouldered End Samples

5. Digital Image Correlation (DIC):

The VIC-3D Fulcrum Module allows low-speed cameras to capture displacement and strain measurements during periodic, high-speed events. It allows users to accurately trigger low-speed cameras at peaks, valleys, or phase intervals in the driving frequency. Applications include fatigue tests.

Since VIC-3D calculates the Lagrangian strain tensor on the specimen surface, the transverse strain can be used to calculate the reduction in a cross-sectional area of the sample using a volume conservation constraint.

 

Working Principle : 

1. Planar Biaxial System – 100kN:

It is a servo hydraulic machine which is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism. It usually includes a built-in encoder or other position feedback mechanism to ensure that the output achieves the desired effect.It applies correctly only to systems where the feedback or error-correction signals help control mechanical position, speed or other parameters. The system uses closed-loop feedback, which classifies it as a servomechanism.

2. Axial Torsion Test System-250kN/2000Nm:

It is a servo hydraulic machine which is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism. It usually includes a built-in encoder or other position feedback mechanism to ensure that output is achieving the desired effect.It applies correctly only to systems where the feedback or error-correction signals help control mechanical position, speed or other parameters. The system uses closed-loop feedback, which classifies it as a servomechanism.

3. Axial Fatigue System- 100kN:

It is a servo hydraulic machine which is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism. It usually includes a built-in encoder or other position feedback mechanism to ensure that the output achieves the desired effect.It applies correctly only to systems where the feedback or error-correction signals help control mechanical position, speed or other parameters. The system uses closed-loop feedback, which classifies it as a servomechanism.

4. Rotary Bending Fatigue System- 20Nm:

The machine is designed based on the rotating beam principle. The load condition is similar to that of a simple beam symmetrically loaded at two points. When the load is applied, tensile and compressive stresses develop in the material below and above the neutral axis respectively. For the first one half revolutions, the stresses in the specimen originally below the neutral axis are reversed from tension to compression and vice versa. Upon completing the revolution, the stresses are again reversed so that during one revolution, the test specimen passes through a complete cycle of flexural stresses (tension and compression).

5. Digital Image Correlation (DIC):

DIC relies on finding the maximum of the correlation array between pixel intensity array subsets on two or more corresponding images, which gives the integer translational shift between them. The method tracks the changes in grey value pattern in small neighbourhoods called subsets during deformation.

 

Body Specification

 

Technical specification related to high speed camera  :

  • Maximum image capture rate: 1,50,000 fps (at maximum resolution) and 2000 fps(at minimum resolution)
  • Minimum image capture rate: 50 fps
  • Maximum Resolution: 1280×1024 pixels
  • Memory Capacity: 17,500 images at maximum resolution.

Instructions for Registration, Sample Preparation, User Instructions, Precautionary Measures and Charges

Instruction for Sample Preparation

1. Planar Biaxial System – 100kN:

Sample Dimensions (mm): Preferable ASTM/equivalent standard samples

a) Gauge length: 200-350 mm

b) Width: 10-50 mm

c) Thickness: 0.5 - 19mm

2. Axial Torsion Test System-250kN/2000Nm:

Preferable ASTM/equivalent standard samples

Round

Gauge length: 20-300 mm

Diameter: 6-26 mm

Flat

Gauge length: 20-300 mm

Width: 10-50 mm

Thickness: ~0.5-25.9 mm

3. Axial Fatigue System- 100kN:

a) Round

Gauge length: 20-300 mm

 Diameter: 6-22.9 mm

b) Flat

 Gauge length: 20-300 mm

Width: 10-70 mm

Thickness: ~0.5-19 mm

4. Rotary Bending Fatigue System- 20Nm:

Preferable ASTM standard samples

a) At Room temperature

Gauge length: 60-200 mm

Diameter: 2-16 mm

b) At elevate temperature

Gauge length: 200 mm

Diameter: 2-16 mm

Applications

Planar Biaxial System – 100kN: 1.a) Aerospace and Power Generation: To study engine turbine materials, like metal alloys, ceramics and composites, to allow them to operate at increasingly higher temperatures for improved efficiency 

1.b) Ground Vehicle: To validate new material models for sheet metal or composite components that are being used to meet more stringent fuel economy targets and increased safety requirements 

1.c) Construction: To study advanced materials that are increasingly used to allow more complex designs, to address security issues from natural and man-made disasters and to meet environmental requirements. 

1.d) Oil and Gas Pipeline Components: To evaluate the material properties for high temperature and corrosive environment. To design high efficiency turbine, pressure vessels, heat-exchanges etc. 

1.e) Large Scale Wind Turbine Structures: Efficient design of wind turbine structures by evaluating the material properties at multiaxial loading. Axial Torsion Test System-250kN/2000Nm: Axial-torsion testing machines help characterize biaxial mechanical properties of materials, both in static and dynamic conditions, which helps in choosing the right materials for different applications where components are exposed to axial torsion loading profiles. 

2.a) Fatigue Testing This system is ideal for the exacting demands of material fatigue testing. Highly stiff integrated actuator beams, patented hydraulic grips, high resolution force transducers and precision alignment fixtures combine to deliver tightly controlled and consistent through-zero specimen loading. Example: Constant Amplitude, Variable Amplitude, Low Cycle Fatigue (LCF) and High Cycle Fatigue (HCF)

 2.b) Fracture Testing The system can be readily configured to perform linear elastic and elastic-plastic fracture toughness testing. The system load frame can be used for both pre-cracking and fracture testing and equipped with a selection of standard compliant grips and precision clip-on displacement gauges. Example: Fracture Toughness, Fatigue Crack Growth, Crack Propagation, JIc and KIc 

2.c) Component Testing Highly configurable MTS Axial Torsional System feature the test space and performance flexibility required to perform both static and dynamic component testing. These systems can be equipped with fixtures for single and multiple specimens, as well as a full selection of extensometers that are versatile enough to measure displacement from a variety of locations on a specimen. Example: Strength and Mechanical Properties of Components and Assemblies 

2.d) Monotonic Testing Multipurpose MTS Axial Torsion systems are equipped to meet a full spectrum of monotonic—or static-material testing requirements. These systems run industry-leading MTS Test Suite software, which combines powerful test definition capabilities with simplified runtime operation and the ability to analyse data report test results in a variety of standard and custom formats. Example: Tensile, Compression, Bend and Stress Relaxation Axial Fatigue System- 100kN: 

3.a)Fatigue Testing The MTS Landmark system is ideal for the exacting demands of material fatigue testing. Highly stiff integrated actuator beams, patented hydraulic grips, high resolution force transducers and precision alignment fixtures combine to deliver tightly controlled and consistent through-zero specimen loading. Example: Constant Amplitude, Variable Amplitude, Low Cycle Fatigue (LCF) and High Cycle Fatigue (HCF)

 3.b) Fracture Testing The system can be readily configured to perform linear elastic and elastic-plastic fracture toughness testing. The system load frame can be used for both pre-cracking and fracture testing and is equipped with a selection of standard compliant grips and precision clip-on displacement gauges. Example: Fracture Toughness, Fatigue Crack Growth, Crack Propagation, JIc and KIc 

3.c) Component Testing Highly configurable MTS Landmark systems feature the test space and performance flexibility required to perform both static and dynamic component testing. These systems can be equipped with fixtures for single and multiple specimens, as well as a full selection of extensometers that are versatile enough to measure displacement from a variety of locations on a specimen. Example: Strength and Mechanical Properties of Components and Assemblies

 3.d) Monotonic Testing Multipurpose MTS Landmark systems are equipped to meet a full spectrum of monotonic—or static-material testing requirements. These systems run industry-leading MTS Test Suite software, which combines powerful test definition capabilities with simplified runtime operation and the ability to analyse data report test results in a variety of standard and custom formats. Example: Tensile, Compression, Bend and Stress Relaxation Digital Image Correlation (DIC): Strain Contour on the specimen, strain on individual points, average and maximum strains and various other geometric data can be obtained by using DIC technique. Using the High Speed Camera, crack propagation can be clearly studied. Can use DIC to analyse images of in situ tensile or compression test.

Sample Details

Chemical allowed

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Gases allowed

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Substrate Dimension

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Target dimension

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Contamination remarks

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Precursors/ Targets allowed

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SOP, Lab Policies and Other Details

Publications

Publications
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