We consider crack propagation in brittle non-linear elastic materials in the context of quasi-static evolutions of energetic type. Given a sequence of self-similar domains nΩ on which the imposed boundary conditions scale according to Bažant’s law, we show, in agreement with several experimental data, that the corresponding sequence of evolutions converges (for n → ∞) to the evolution of a crac...

Abstract In this study, we aimed at synthesizing polymeric materials consisting of polyvinyl pyrrolidone (PVP) enhanced polyacrylamide (PAM) blend films and optimizing the glass transition temperature ( T g ) synthesized blends. The PAM PVP polymers were blended through solution casting techniques by varying (0.3–1.2 g) (0.3–1 concentrations in parallel. response surface methodology (RSM) exper...

Fused filament fabrication (FFF) is a common additive manufacturing method for polymers that has been widely adopted due to its low cost and ease of use. However, FFF remains limited in high performance applications the weak mechanical properties welds between printed fibers, including parts manufactured from acrylonitrile butadiene styrene (ABS). This study uses atomic force microscopy (AFM) o...

Bio-filler from eggshells as reinforcement of bio-based polymers are based on their benefits adequate strength and stiffness, besides friendly, degradable renewable environment. Eggshell is an agricultural waste considered garbage, contributing to pollution; nevertheless, it can be transformed into bio-calcium carbonate, acquiring new values. As biodegradable polymers, there were chosen PLA (po...

During propagation of brittle cracks in silicon single crystal,

objective(s): the aim of present research was to develop matrix-mini-tablets of lornoxicam filled in capsule for targeting early morning peak symptoms of rheumatoid arthritis. materials and methods:matrix-mini-tablets of lornoxicam were prepared by direct compression method using microsomal enzyme dependent and ph-sensitive polymers which were further filled into an empty hpmc capsule. to asses...

Brittle bone disease (Osteogenesis imperfecta first defined by McKusick in 1956, is a disease that causes extremely fragile bones. It is a (OI)), congenital disease meaning that it is present during birth. It is often caused by a defect in the gene that produces type I collagen an important building block of bone and the most abundant protein found in the body. This gene can be affected in many...

This paper provides implementation details of the algorithm proposed in Schvartzman and Otaduy [2014] to simulate brittle fracture. We cast brittle fracture as the computation of a high-dimensional centroidal Voronoi diagram (CVD), where the distribution of fracture fragments is guided by the deformation field of the fractured object. We accelerate the fracture animation process with example-ba...