Dynamic photoelasticity applied to crack-branching investigations

Slimane Hammami; Mario Cottron; Alexis Lagarde

doi:10.1117/12.49487

1 December 1991 Dynamic photoelasticity applied to crack-branching investigations

Slimane Hammami, Mario Cottron, Alexis Lagarde

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.49487
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Experimental investigations of crack-branching on central-notched plates in polymer are presented using dynamic photoelasticity. From a multiparameter representation of the stresses around the crack-tip, the stress-intensity factor is determined by a multiple-point method which couples iterative process and minimization procedure. The experimental device (high-speed camera, loading system) is described and the results are discussed. The polymer tested seems to correlate with the macroscopic branching criteria commonly found in dynamic fracture analysis.

Citation Download Citation

Slimane Hammami, Mario Cottron, and Alexis Lagarde "Dynamic photoelasticity applied to crack-branching investigations", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.49487

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