applications of thermoplastic composites have developed extensively. the thermoplastic composites in comparison with the thermoset composites have many advantages. thermoplastic composites can be melted and remolded many times. the duration of manufacturing process of these composites is short, producing very tough material, and the welding ability and multiple recyclings are their further adva...

The rippling patterns observed in torn elastic sheets, leaves and swelling hydrogels provide striking examples of periodic and self-similar patterns. Within the formalism of finite elasticity, it is understood that such patterns arise from the sheet buckling to relieve growth induced residual strains. While numerical experiments set within this framework have been able to replicate these patter...

Pericytes physically surround the capillary endothelium, contacting and communicating with associated vascular endothelial cells via cell-cell and cell-matrix contacts. Pericyte-endothelial cell interactions thus have the potential to modulate growth and function of the microvasculature. Here we employ the experimental finding that pericytes can buckle a freestanding, underlying membrane via ac...

A buckling solution and a non-linear post buckling solution were employed for the wrinkling analysis of a tensioned Kapton square membrane. The buckling solution with significantly reduced bending stiffness creates localized buckling modes accounting for the wrinkle formation in the membrane. The non-linear post buckling solution with an updated Lagrangian scheme describes the detailed wrinkle ...

BACKGROUND During routine surgical treatment of basal cell carcinomas (BCCs), we observed an apparent inverse relationship between the presence of a BCC and significant wrinkling of the face. To ascertain the veracity of this observation, we performed a clinical and questionnaire-based case-referent study. OBSERVATION One hundred eighteen successive white patients (mean +/- SD age, 71.9 +/- 9...

This paper presents a 3D direct numerical simulation of buckled thin-film packaging based on transferred elastic wrinkling bonded compliant polymer ring. The mode change the fabricated cap is found by measuring shape at different times after Si substrate debonding. conventional linear and nonlinear buckling simulations are not adequate to understand behavior mechanism creating such change. Dire...

Surface Wrinkling In article number 2203491, Qingshan Wei, Yong Zhu, Seung Goo Lee, and co-workers summarize the recent advances in flexible stretchable sensors based on surface wrinkling, which provides an effective alternative to improve both sensing performance mechanical deformability of sensors. The detailed fundamental mechanics wrinkle formation, geometry control strategies, fabricating ...

BACKGROUND Although cosmetic procedures have a significant impact on certain aspects of aging, such as deep, wrinkling, sagging, and volume loss, they fail to address the overall quality of the skin. METHODS Daily skincare routines potentially can have a significant long-term impact on the overall quality of a person's complexion. RESULTS By expanding our product knowledge, we can help our ...

Hyperornithinaemia gyrate atrophy (HOGA) is a rare autosomal recessive disorder in which chorioretinal degeneration occurs with cataracts, myopia, and hyperornithinaemia. We report the case of an 18-year-old female who presented with the typical features of HOGA, including posterior subcapsular cataracts and elevated plasma ornithine. She later developed distorted vision in both eyes owing to w...

This paper presents a bilayer model to account for surface effects on the wrinkling of ultrathin polymer films. Assuming a surface layer of finite thickness, effects of surface properties on the critical strain, the equilibrium wavelength, and the wrinkle amplitude are discussed in comparison with conventional analysis. Experimental measurements of wrinkling in polymer films with thickness rang...