Dynamic Stress & Strain Measurement

News

New Datasheet
Optical Measurement of Dynamic Stress and Strain

Understanding the origin of the stress and strain distribution is crucial to increasing the durability of components under dynamic load.

Numerical simulations based on finite element (FE) models help with this understanding but must be validated by real component data. Polytec’s 3-D Scanning Laser-Doppler Vibrometer provides an advanced, non-contact optical test solution.

Fields of Application

  • Automotive
     
  • Mechanical Engineering
     
  • Bioengineering/ Biomechanics

Benefits

  • Quick setup and fast results
  • Non-contact probe
  • No mass loading, stiffening and damping
  • High spatial resolution at no additional cost
  • Variable field-of-view for different object sizes
  • Measure using arbitrary points or FEM geometry for model validation

Links

About stress & strain (Wikipedia)

Stress, strain & Young's modulus (Engineering ToolBox)

PSV Software

PSV-400-3D Scanning Vibrometer 
 
PSV-3D Instructional Video - Learn About 3-D Vibration Measurement On Your Desktop

 

 
 Copyright 2009 Polytec GmbH Technical specifications are subject to change.
Print

Polytec StrainProcessor

Polytec’s StrainProcessor is a measurement extension developed for easy finite element model (FEM) updating and for comparisons to calculated stress and strain distributions. It comprises a set of hardware and software components enabling a PSV-400-3D Scanning Vibrometer to measure and analyze the dynamic strain and stress distribution on surfaces with high resolution and low noise.


 Literature |
Polytec Strain Processor

PSV Software

Polytec's software package dedicated to the acquisition and processing of out-of-plane vibration measurements using PSV-400, MSV-400 and MSA-400 systems. PSV Software is a powerful tool that
 
  • Controls the scanners
  • Performs data processing
  • Provides intuitive & animated data visualization
  • Provides interfaces to modal,
    FEM and other software

 General | 8.7 | 8.6 | 8.5 | 8.4 | 8.3 | Updates |
PSV Software Screen

PSV-400-3D Scanning Vibrometer

The perfect measurement instrument for gathering 3-dimensional vibration data from both simple and complex structures. 3

  • Simultaneous measurement using 3 sensor heads at high spatial resolution
     
  • Intuitive 3-D animation of the measurement results with separation of Out-of-Plane and In-Plane vector components
     
  • Data interface to Modal Analysis and FEM Software

 RoboVib Station | Features | Technical Data | Applications | Download |
PSV-400-3D Scanning Vibrometer