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Post-peak Behavior of Shear Failing Beams Governed by Snapback Instability

This paper describes how snapback load-deflection relations of shear failing beams are numerically obtained using Arc Length Method with Selected Displacement Control Points. Identifying stress loading area while load decreases, failure process of snapback shear failure of a beam is clarified in the paper. The fundamental understanding of the phenomena is extended to failure concept of a structure through energy balance calculation.