Strain measurement using experimental stress analysis and strain gauges
Determining and identifying stress in material: This is done using experimental stress analysis. Strain gauges are the principal measuring instrument used in this context. Here you will find useful information on measurement using strain gauges and experimental stress analysis:
- How to professionally and correctly install strain gauges
- What to keep in mind when using experimental stress analysis
- How to benefit from innovative optical strain gauge technology in your application.
The reference book on experimental stress analysis using strain gauges
Get a complete overview of the topic of "Measurements using strain gauges" - in Karl Hofmann's 250-page reference book.
Available as a free download only from us!
Installing strain gauges
How to install a strain gauge?
Watch our training video to learn step by step how to proceed when measuring with strain gauges.
You can also download the book "Practical hints for the installation of strain gages".
White Papers on Strain Measurement using Strain Gauges
Compliance with a strain gauge's maximum permissible bridge excitation voltage is essential to avoid measurement errors. Read this white paper to learn what the significance of this value is and how it is calculated.
Each strain gauge produces a temperature-dependent measurement signal. Read in this article how the temperature-dependent apparent strain can be reduced by temperature response matching.
Well-proven foil-type strain gauges have many advantages over alternative technologies believes HBM's Dr.-Ing. André Schäfer
If measuring points are not directly accessible, the measuring instruments need to be connected using long cables. The disadvantage: The lead resistance can negatively affect the measurement. Various types of strain gauge...
Fiber-reinforced composites are used in an increasing number of applications. These materials too can be tested using strain gauges, which is shown in this article.
It is essential to properly protect a strain gauge measuring point from environmental influences. This article provides you with the information you need to find the right covering agent to ensure protection of your measuring...
Most electronics engineers don't give much thought to strain measurements—EEs are usually more concerned with electrical reliability than with structural integrity. But for engineers who develop products such as aerospace...
Strain gauges can be integrated directly into a structure instead of being installed on the surface of a material. Read our extensive instructions on the topic to learn how to successfully integrate strain gauges into structures.
White Papers on measurements using optical strain gauges
Our comprehensive article provides basic knowledge on the topic: Everything you need to know about measurement using optical strain gauges: From technological background information through calibration of interrogators and...
When are electrical strain gauges adequate, when do you need to use optical strain gauges? This article describes the fundamental differences between the technologies and their implications for the respective fields of...
Fiber Bragg Grating Sensors (FBGS) are gaining increasing attention in the field of experimental stress analysis.
White Papers on the Wheatstone Bridge Circuit
From measured strain to mechanical stress: analysis of biaxial stress state with unknown principal directions
The three rosettes available in the 0°/45°/90° and 0°/60°/120° designs are designated by the letters a, b and c. 3 strains, ea, eb, and ec are measured accordingly using a rosette with 3 measuring grids.
After the principal...
This brochure provides you with concise knowledge about the application of Wheatstone Bridge Circuits.
Wheatstone Bridge Circuits Show Almost No Nonlinearity and Sensitivity Errors When Used for Single Strain Gage Measurements
The measurement of strain with single strain gages is an important part of experimental stress analysis. The type of circuitry employed influences the linearity and sensitivity of the measurements. Wheatstone bridge circuits and...
Specialized articles on experimental stress analysis
This paper describes some statistical techniques for taking measured data and projecting what the expected time history and resulting fatigue damage would be if test data were collected for much longer times.
In the field of Experimental Stress Analysis hundreds and sometimes thousands of single strain gages are to be measured. Calibration of such big systems can be a tedious task.
The signals of strain gage transducers are very small. In consequence, error signals can even exceed the measuring signal amplitudes and therefore must be suppressed by sophisticated measuring circuits.
Linearity and Sensitivity Error in the Use of Single Strain Gages with Voltage-Fed and Current-Fed Circuits
An important part of experimental stress analysis is the measurement of strain with single strain gages and the type of circuitry employed influences the linearity and sensitivity of the measurements.
Experimental Stress Analysis with HBM
Installation of Strain Gauges
Strain gauges from HBM
Our tip: HBM Academy seminars
In numerous HBM Academy seminars and workshops you learn how to install strain gauges - step by step, explained in detail by our competent trainers.