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Frictional dissipation of polymeric solids vs interfacial glass transition
Lionel Bureau, Christiane Caroli, Tristan Baumberger
We present single contact friction experiments between a glassy polymer and smooth silica substrates grafted with alkylsilane layers of different coverage densities and morphologie…
Fracture of a biopolymer gel as a viscoplastic disentanglement process
Tristan Baumberger, Christiane Caroli, David Martina
We present an extensive experimental study of mode-I, steady, slow crack dynamics in gelatin gels. Taking advantage of the sensitivity of the elastic stiffness to gel composition a…
Solvent control of crack dynamics in a reversible hydrogel
Tristan Baumberger, Christiane Caroli, David Martina
The resistance to fracture of reversible biopolymer hydrogels is an important control factor of the cutting/slicing and eating characteristics of food gels. It is also critical for…