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  • Iosipescu Procedure
  • laserXtens

Iosipescu Procedure

In this test arrangement, which is described in ASTM D 5379, a specimen notched on both sides is clamped in a special device which is held longitudinally. 

When compressed, this creates a zone of torque-free shear load between the notches. 

The fibers must lie parallel or perpendicular to the loading axis. 

Strain gages are placed at less than 45° in the direction of the shear plane in order to determine the shear extension.

Results are shear response, 0.2% offset stress, max. shear stress and secant shear modulus.