Hybrid Technique to Analyze 3-D Stress - Strain States

  • Karl-Hans Laermann


Because of the development of hybrid techniques in experimental mechanics, i.e. the combination of experimental analysis with computer-oriented processes of evaluation, the advantages of the high resolving power of the presently available measuring - and recording techniques together with the possibility to evaluate the increasing amount of data can be utilized meaningfully only when the physical phenomena are described by advanced theories. Then new fields will be opened to apply methods of experimental analysis to as yet unsufficiently solved problems in solid mechanics. As one of those problems in experimental analysis, the determination of the internal stress - strain - state in threedimensional solids will be considered.

Based on the boundary-integral method, a reconstruction algorithm will be derived, by which the displacements in arbitrary points inside a threedimensional, simply connected solid can be determined from experimentally given boundary values. The experiments are carried out by means of the multi-hologram-analysis combined with digital image processing.


Harmonic Function Reconstruction Algorithm Solid Mechanic Digital Image Processing Hybrid Technique 
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Copyright information

© Elsevier Science Publishers Ltd 1990

Authors and Affiliations

  • Karl-Hans Laermann
    • 1
  1. 1.BUGH Wuppertal / FB 11Wuppertal 2Germany

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