Meso-scale deformation and damage in thermally bonded nonwovens

Meso-Scale Modeling of Polycrystal Deformation DISSERTATION

....................................................................................................................... ii DEDICATION................................................................................................................... iv ACKNOWLEDGEMENTS................................................................................................ v VITA.............................

Critical factors affecting the properties of thermal-bonded nonwovens with special reference to cellulosic fibres

The ability to engineer the feel and functional requirements in lightand medium-weight goods without contributing to environmental pollution makes the thennal bonding process an interesting technology of nonwoven production. The manufacturing conditions, processing pardmeters, and the characteristics of binder fibres have a large bearing on the properties of nonwoven products. Higher calender r...

Plastic Deformation Characteristics of Continuous Confined Strip Shearing Process Considering the Deformation Homogeneity and Damage Accumulation

In the present investigation, two dimensional elastoplastic finite element analysis was conducted to assess the deformation characteristics of Al 1100 alloy during continuous confined strip shearing (C2S2) process. The results of simulations showed that the plastic strain distribution across the deformed sample is non-uniform irrespective of the amount of friction and C2S2 die angle. The most u...

Meso scale flextensional piezoelectric actuators

We present an ultra-thin meso scale piezoelectric actuator consisting of a piezoceramic beam and a carbon fiber displacement-amplification frame. We show that the actuator can be designed to achieve a wide range of force/displacement characteristics on the mN/μm scales. The best performing design achieved a free displacement of 106 μm and a blocked force of 73 mN, yielding a total energy densit...

Borneo vortex and meso-scale convective rainfall