Strain gauges for residual stress analysis: Ideal for ring core method and hole drilling method

Determining residual stresses in materials (e.g. during casting, welding and forming processes) becomes easy with HBM's special strain gauges. 

The special strain gauges for residual stress analysis are available for a variety of commonly used methods in that field: in addition to the ring core method, there are more versions available for hole drilling (according to the integral method), and even for precise and safe high-speed drilling (in combination with the MTS3000 drilling device from our partner company Sint Technology). 

For high-speed drilling, we also offer our patented six-wire strain gauges, which can compensate for non-centric boreholes, providing increased measurement accuracy. 

  • Supported residual stress measurement methods: Ring core method, integral hole-drilling, high-speed drilling
  • Nominal resistance: 120 and 350 Ohm
  • Measuring grid lengths: 1.5 to 5 mm

Versatility in usage

  • Ideal choice for residual stress analysis using ring core method and hole-drilling method
  • Additional strain gauge types for high-speed drilling available
  • Select between 12 different geometries for different methods and applications

Get the right strain gauge for residual stress measurements – for any desired method for residual stress analysis. 

Quick installation

  • Integrated measuring chain available for high-speed drilling (from our technology partner), including control and evaluation software
  • Patented self-compensating strain gauge rosettes for high measurement accuracy in high-speed drilling
  • Suitable accessories for quick and clean installation of the strain gauges on the measuring point

Fast and fail-safe installation of strain gauges. Residual stress measurements as simple as the application of "classical" strain gauges.

Fast delivery

  • Most types available directly from stock
  • Comfortable ordering via the HBM online shop (available in many countries worldwide)

Get immediate results thanks to quick delivery. No delays for your measurement projects. 


Residual Stress Analysis Strain Gauges for the Ring Core Method

 

Types available with immediate delivery

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Measuring grid

Carrier

Ω

a

b

c

d

Volt

 

1-XY51-5/350
For ferritic steel with α = 10.8 · 10-6/K

350

5
0.197

2.5
0.098

12
0.472

-

6,5

 

 

 

Types available with immediate delivery

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Measuring grid

Carrier

Ω

a

b

c

d

Volt

 

1-RXY51-5/350
For ferritic steel with α = 10.8 · 10-6/K

350

5
0.197

2.5
0.098

12
0.472

-

4,5


Residual Stress Analysis Strain Gauges for the Hole-Drilling Method

 

Types available

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Solder Terminals

 

Measuring grid

Carrier

Ω

a

b

c

d

V

 

1-RY21-3/120
For ferritic steel with α = 10.8 · 10-6/K

120

3
0.118

2.5
0.098

-

22.1
0.866

4,5

LS 5

 

 

 

Types available

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Solder Terminals

 

Measuring grid

Carrier

Ω

a

b

c

d

V

 

1-RY61-1,5/120
For ferritic steel with α = 10.8 · 10-6/K

120

1.5
0.059

0.8
0.031

-

12
0.472

2

LS 5

As these strain gauges are covered by a print plate, they can be used on level or weakly curved surfaces only.

 

Types available

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Solder Terminals

 

Measuring grid

Carrier

Ω

a

b

c

d

V

 

1-RY61-1,5/120K
For ferritic steel with α = 10.8 · 10-6/K

120

1.5
0.059

0.8
0.031

7.2
0.283

12
0.472

2

LS 7

 

 

 

Types available

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Solder Terminals

 

Measuring grid

Carrier

Ω

a

b

c

d

V

 

1-RY61-1,5/120R
For ferritic steel with α = 10.8 · 10-6/K

120

1.5
0.059

0.8
0.031

8
0.315

13.5
0.531

2

LS 7

 

 

 

Types available

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Solder terminal

Measuring grid

Measuring grid carrier

Ω

a

b

c

d

V

 

1-RXY61-1.5/350
For ferritic steel with α = 10.8 · 10-6/K

120

1.5
0.059

0.8
0.031

-

10.2
0.402

2

LS 5

 

 

 

Types available

Nominal resistance

 

Dimensions [mm/inch]

Max. perm. Effective bridge ex voltage

 

Solder terminal

Measuring grid

Carrier

Ω

a

b

c

d

V

 

1-RXY61-3.2/120S
For ferritic steel with α = 10.8 · 10-6/K

120

3.2
0.126

3.2
0.126

20.9
0.823

22
0.866

10

LS 5

 

 

What are residual stresses?

Residual stresses can arise in material due to the effects of internal forces without any external forces acting. For example, residual stresses arise by non-uniform cooling of cast components, by welding or forging of the parts, or by mechanical processing.

Two strain gauge-based technologies are often used for determining residual stresses:  the ring core method and the hole drilling method.

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