Line creep in paper peeling

Creep of a fracture line in paper peeling.

The slow motion of a crack line is studied via an experiment in which sheets of paper are split into two halves in a "peel-in-nip" (PIN) geometry under a constant load, in creep. The velocity-force relation is exponential. The dynamics of the fracture line exhibits intermittency, or avalanches, which are studied using acoustic emission. The energy statistics is a power law, with the exponent be...

Transforming Traditional Paper Cutting into LINE Stickers

The Fracture Mechanics Concept of Creep and Creep/Fatigue Crack Growth in Life Assessment

There is an increasing need to assess the service life of components containing defect which operate at high temperature. This paper describes the current fracture mechanics concepts that are employed to predict cracking of engineering materials at high temperatures under static and cyclic loading. The relationship between these concepts and those of high temperature life assessment methods is ...

Peeling skin syndrome

The coexistence of neurofibromatosis with partial unilateral lentigines raises the possibility that partial unilateral lentigines could be a variant or forme fruste of segmental neurofibromatosis. Our patient had no cutaneous lesions of neurofibromatosis but had bilateral Lisch nodules in the eyes. Since Lisch nodules are characteristic of neurofibromatosis, we conclude that the partial unilate...

Complications of Macular Peeling

Macular peeling refers to the surgical technique for the removal of preretinal tissue or the internal limiting membrane (ILM) in the macula for several retinal disorders, ranging from epiretinal membranes (primary or secondary to diabetic retinopathy, retinal detachment…) to full-thickness macular holes, macular edema, foveal retinoschisis, and others. The technique has evolved in the last two ...