Strain Gauge Measurements Testing (SGT)
Strain gauges can be used to measure static strain due to relatively constant loads such as pressure, thermal expansion.
Strain gauges may also be used to measure dynamic strain due to transient events or vibration.
Information from strain gauge measurements is useful for validation of finite element analysis (FEA) models, establishing more accurate operating loads and failure investigations.
AVT Reliability BV (formerly Van Geffen Reliability) also include selection of gauge size and type, specification of gauge locations and orientations, strain gauge installation, and recommendations for bonding methods.
Our solution
AVT Reliability has extensive analytical and field measurements experience in dealing with strain gauge measurements for both rotating/reciprocating machinery as well as static equipment.
The field of application of strain gauge measurements for both rotating and static equipment is very wide. Typical projects where this technique is applied include:
- Comparison of real values with computational values/calculations (verification)
- Indirect force/torque/power; measurements of a system, like propulsion lines, generator sets etc;
- Monitoring purposes, e.g. monitoring a displacement/deformation over time due to external influences for static equipment;
- Monitoring purposes, for example remote monitoring of a ship’s propeller performance during sea trials
Offering
AVT Reliability offers various services within the field of strain gauge measurement testing including;
- Strain gauge selection/installation and acquisition;
- Static strain measurements due to pressure, temperature, loads etc;
- Dynamic strain measurements due to vibration & transient events;
- Validation of finite element stress analysis;
- Residual strain due to stress removal;
- Failure investigation (RCA).
Applications
Strain gauges are ideal for verifying stress and displacement simulation models when measurements are taken at specific locations and correlated with the simulation results. Modelling assumptions such as boundary conditions, contacts, and loads may be updated to make the simulation better fit the observed behavior. Once the model accurately reflects the measurements, more detailed information about the system can be discovered and simulations of the modified system can be used to predict behavior with confidence..
We specialise in both strain gage measurement as well as simulation, allowing seamless support when conducting investigations.
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