Work

Indentation and Puncturing of Pristine and Flawed Soft Membranes

Year: 2025

Type: article

Abstract: ABSTRACT This paper investigates the mechanical behavior of soft elastomeric membranes under indentation by a rigid spherical object, with a particular focus on the failure mechanisms leading to puncture. The study examines both pristine membranes and those with pre‐existing flaws, such as cracks, to explore how these imperfections affect the mechanical response and failure characteristics. An analytical axisymmetric model, based on a nonlinear solution for a hyperelastic, incompressible membrane, is presented. The prediction of the model are validated with experimental data obtained from indentation tests on silicone membranes. The study considers both stretch‐based and energy‐based criteria for fracture, providing insight into the conditions necessary for membrane failure and crack propagation.

Source: Fatigue & Fracture of Engineering Materials & Structures

DOI: 10.1111/ffe.14640

Authors: Matteo Montanari, Roberto Brighenti, Silvia Monchetti, Andrea Spagnoli

Institutions: University of Modena and Reggio Emilia, University of Parma, University of Florence

Language: English

Topic: Elasticity and Material Modeling

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,860

Funder: Università degli Studi di Parma