English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report on a theoretical and experimental investigation of the normalcontact of stretched neo-Hookean substrates with rigid spherical probes.Starting from a published formulation of surface Green's function forincremental displacements on a pre-stretched, neo-Hookean, substrate (L.H. Lee\textit{J. Mech. Phys. Sol.} \textbf{56} (2008) 2957-2971), a model is derivedfor both adhesive and non-adhesive contacts. The shape of the ellipticalcontact area together with the contact load and the contact stiffness arepredicted as a function of the in-plane stretch ratios $\lambda_x$ and$\lambda_y$ of the substrate. The validity of this model is assessed by contactexperiments carried out using an uniaxally stretched silicone rubber. forstretch ratio below about 1.25, a good agreement is observed between theory andexperiments. Above this threshold, some deviations from the theoreticalprediction are induced as a result of the departure of the mechanical responseof the silicone rubber from the neo-Hokeean description embedded in the model.

Contact of a spherical probe with a stretched rubber substrate