On the Evaluation of the R-Curve Including the Self-Weight Contribution: Mortar

Abstract:

In fracture tests involving the Single-Edge-Notched beam loaded in Three or Four-Point-Bending as well as in other specimen shapes, the specimen weight contributes to the overall loading of the system. Unless special methods are put into practice, the contribution of the specimen weight is not compensated, leading to misevaluations of fracture parameters obtained in the experiments. In this work a method taking into account the exact contribution of the specimen self-weight is proposed to evaluate the Resistance-curve of mortar. Cohesive crack modeling accounting for the structure self-weight is used to generate the necessary load-displacement response to perform the validation of the proposed method.

• Periodical: Key Engineering Materials (Volumes 488-489)
• Pages: 609-612
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.488-489.609
• Online since: September 2011
• Authors: N. Dourado, S. Morel
• Keywords: Bilinear Damage Law, Cohesive Zone Model (CZM), Equivalent Crack Length, Fracture Process Zone FPZ, R-Curve, Self-Weight

References

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