Matteo Ciccotti Home Page

Postdoc Wanted !!! Debonding Soft Fibrils on Patterned Substrates

mciccott — 2023-09-25T14:42:40Z

Understanding the role of crosslink density and linear viscoelasticity on the shear failure of pressure-sensitive-adhesives. Soft Matter. 2023

mciccott — 2023-09-01T14:34:21Z

Arrowood A., Ansari M.A., Ciccotti M., Huang R., Liechti K.M. and Sanoja G.E. (2023). Understanding the role of crosslink density and linear viscoelasticity on the shear failure of pressure-sensitive-adhesives. Soft Matter. 19, 6088.
Pressure-sensitive-adhesives (PSAs) are ubiquitous in electronic, automobile, packaging, and biomedical applications due to their ability to stick to numerous surfaces without undergoing chemical reactions. Although these materials date back to the 1850s with (…)

- International Papers

Real-Time Early Detection of Crack Propagation Precursors in Delayed Fracture of Soft Elastomers. Physical Review X. 2023

mciccott — 2023-06-03T09:22:55Z

Ju J., Sanoja G.E., Nagazi M.Y., Cipelletti L., Liu Z., Hui C.Y., Ciccotti M., Narita T. & Creton C. (2023). Real-Time Early Detection of Crack Propagation Precursors in Delayed Fracture of Soft Elastomers. Physical Review X, 13(2), 021030.
The fracture of materials can take place below the critical failure condition via the slow accumulation of internal damage followed by fast crack propagation. While failure due to subcritical fracture accounts for most of the structural failures in (…)

- International Papers

Soft coring : how to get a clarinet out of a flute ? Extreme Mechanics Letters, 2023

mciccott — 2022-11-23T10:16:49Z

Lechenault F., Ramdane I., Moulinet S., Roman-Faure M. and Ciccotti M., 2023. Soft coring : how to get a clarinet out of a flute ?. Extreme Mechanics Letters, 61, 101976.
Cutting mozzarella with a dull blade results in poorly shaped slices : the process occurs in a configuration so deformed as to yield unexpectedly curved surfaces. We study the morphogenetics arising from such process through the example of coring : when a thin cylindrical hollow punch is pushed into a soft elastomer, the (…)

- International Papers

Finite deformation field near the tip of a Blatz–Ko wedge bonded to a rigid substrate. International Journal of Fracture, 2022

mciccott — 2022-11-23T10:07:03Z

Hui C.Y., Zhu B. and Ciccotti M., 2022. Finite deformation field near the tip of a Blatz–Ko wedge bonded to a rigid substrate. International Journal of Fracture, 238(1), 71-87.
Sharp corners or wedges are common in everyday structures. Depending on the internal angle theta0 of the wedge, severe stress concentration can occur. Linear elasticity predicts that when an incompressible elastic wedge is bonded to a rigid substrate and subjected to plane strain deformation, the stresses at the (…)

- International Papers

Self-Organization at the Crack Tip of Fatigue-Resistant Thermoplastic Polyurethane Elastomers. Macromolecules, 2021

mciccott — 2022-11-23T09:59:00Z

Scetta G., Euchler E., Ju J., Selles N., Heuillet P., Ciccotti M. and Creton C., 2021. Self-Organization at the Crack Tip of Fatigue-Resistant Thermoplastic Polyurethane Elastomers. Macromolecules, 54(18), 8726-8737.
Despite their technological relevance, the resistance of soft thermoplastic polyurethanes (TPU) to crack propagation in cyclic fatigue has never been investigated in detail. In particular, a clear shortcoming in the literature for this class of materials is the lack of (…)

- International Papers

Strain induced strengthening of soft thermoplastic polyurethanes under cyclic deformation. Journal of Polymer Science, 2021

mciccott — 2022-11-23T09:51:48Z

Scetta G., Ju J., Selles N., Heuillet P., Ciccotti M. and Creton C., 2021. Strain induced strengthening of soft thermoplastic polyurethanes under cyclic deformation. Journal of Polymer Science, 59(8), 685-696.
We investigate the cyclic mechanical behavior in uniaxial tension of three different commercial thermoplastic polyurethane elastomers (TPU) often considered as a sustainable replacement for common filled elastomers. All TPU have similar hard segment contents and linear moduli but (…)

- International Papers

Cyclic fatigue failure of TPU using a crack propagation approach. Polymer Testing, 2021

mciccott — 2022-11-23T09:47:20Z

Scetta G., Selles N., Heuillet P., Ciccotti M. and Creton C., 2021. Cyclic fatigue failure of TPU using a crack propagation approach. Polymer Testing, 97, 107140.
Thermoplastic polyurethane elastomers (TPU) are stretchable, tough, wear resistant and easily processable soft materials. Especially because of their recyclability, TPUs can be suitable candidates to replace rubbers in several applications such as damping, footwear and cable coatings. However, their capacity to operate under (…)

- International Papers

Why is mechanical fatigue different from toughness in elastomers ? The role of damage by polymer chain scission. Science Advances, 2021

mciccott — 2022-11-23T09:33:09Z

Sanoja G.E., Morelle X.P., Comtet J., Yeh C.J., Ciccotti M. and Creton C. Why is mechanical fatigue different from toughness in elastomers ? The role of damage by polymer chain scission. Science Advances, 7(42), eabg9410.
Although elastomers often experience 10 to 100 million cycles before failure, there is now a limited understanding of their resistance to fatigue crack propagation. We tagged soft and tough double-network elastomers with mechanofluorescent probes and quantified damage by (…)

- International Papers

Bridging steady-state and stick-slip fracture propagation in glassy polymers. Soft Matter, 2022

mciccott — 2022-11-23T09:23:49Z

Nziakou Y., George M., Fisher G., Bresson B., Roux S., Halary J.L. and Ciccotti M., 2022. Bridging steady-state and stick-slip fracture propagation in glassy polymers. Soft Matter, 18, 793-806.
Both an experimental and a theoretical investigation of fracture propagation mechanisms acting at the process zone scale in glassy polymers are presented. The main aim is to establish a common modeling for different kinds of glassy polymers presenting either steady-state fracture propagation or (…)

- International Papers