The ability of materials to withstand defects like cracks, notches or generic geometric discontinuities, is usually indicated as flaw tolerance, and is a crucial aspect of the safety assessment of structural components. Flaw tolerance in soft materials can be substantially different from that in traditional ones. As a matter of fact, the capacity of highly deformable materials to undergo large deformations with a significant rearrangement of the molecular network at the miscroscale in highly stressed regions can enhance such an ability, leading to an erroneous underestimation of their safety level against defect-driven failure, if traditional methods of analysis are employed. In the present research work, the mechanics of highly deformable notched plates is considered from the fail-safety point-of-view. Experimental, numerical and theoretical remarks are made in order to explain the mechanism of defect resistance in such a class of materials from a physically-based point-of-view.

Defect tolerance in soft materials / Brighenti, Roberto; Spagnoli, Andrea; Carpinteri, Andrea; Artoni, Federico. - In: PROCEDIA STRUCTURAL INTEGRITY. - ISSN 2452-3216. - 2:(2016), pp. 2788-2795. [10.1016/j.prostr.2016.06.348]

Defect tolerance in soft materials

BRIGHENTI, Roberto
Conceptualization
;
SPAGNOLI, Andrea;CARPINTERI, Andrea;ARTONI, FEDERICO
2016-01-01

Abstract

The ability of materials to withstand defects like cracks, notches or generic geometric discontinuities, is usually indicated as flaw tolerance, and is a crucial aspect of the safety assessment of structural components. Flaw tolerance in soft materials can be substantially different from that in traditional ones. As a matter of fact, the capacity of highly deformable materials to undergo large deformations with a significant rearrangement of the molecular network at the miscroscale in highly stressed regions can enhance such an ability, leading to an erroneous underestimation of their safety level against defect-driven failure, if traditional methods of analysis are employed. In the present research work, the mechanics of highly deformable notched plates is considered from the fail-safety point-of-view. Experimental, numerical and theoretical remarks are made in order to explain the mechanism of defect resistance in such a class of materials from a physically-based point-of-view.
Defect tolerance in soft materials / Brighenti, Roberto; Spagnoli, Andrea; Carpinteri, Andrea; Artoni, Federico. - In: PROCEDIA STRUCTURAL INTEGRITY. - ISSN 2452-3216. - 2:(2016), pp. 2788-2795. [10.1016/j.prostr.2016.06.348]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2810656
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