Results 311 to 320 of about 557,778 (354)

Highly deformable bones: Unusual deformation mechanisms of seahorse armor

Acta Biomaterialia, 2013
Multifunctional materials and devices found in nature serve as inspiration for advanced synthetic materials, structures and robotics. Here, we elucidate the architecture and unusual deformation mechanisms of seahorse tails that provide prehension as well as protection against predators. The seahorse tail is composed of subdermal bony plates arranged in
Michael M, Porter, Ekaterina, Novitskaya, Ana Bertha, Castro-Ceseña, Marc A, Meyers, Joanna, McKittrick   +4 more
openaire   +2 more sources

QUANTUM DEFORMATIONS OF QUANTUM MECHANICS

Modern Physics Letters A, 1993
Based on a deformation of the quantum mechanical phase space we study q-deformations of quantum mechanics for qk=1 and 0<q<1. After defining a q-analog of the scalar product on the function space we discuss and compare the time evolution of operators in both cases.
openaire   +2 more sources

Mechanical deformation mechanisms and properties of amyloid fibrils

Physical Chemistry Chemical Physics, 2015
We study the role that the length of amyloid fibrils plays in their mechanical deformation mechanisms and properties by using all-atom explicit water steered molecular dynamics simulations.
Bumjoon, Choi, Gwonchan, Yoon, Sang Woo, Lee, Kilho, Eom   +3 more
openaire   +2 more sources

Mechanical Deformation Behavior

1994
The correlation between applied mechanical load and resulting deformation is described by moduli. The basic component of moduli is controlled by binding forces, originating from deformations of the electron configurations. The load acts against the binding forces. This component reacts nearly immediately and is responsible for the elastic behavior.
openaire   +1 more source

Plastic Deformation Mechanisms

2019
This chapter begins with an introduction of the crystalline structure and crystalline defects of solid materials and the definition of hot and cold work. Then, a full description of the dislocation slip mechanism is presented, including an explanation of the direct observation of dislocations by transmission electron microscopy.
openaire   +1 more source

Mechanically deformed crumpled surfaces

Journal of Physics D: Applied Physics, 1989
Crumpled surfaces (CS) obtained from random and irreversible compactification of aluminium foils are low-density fractal structures which become increasingly easy to deform as their size increases. The authors study the deformation of these objects when submitted to mechanical forces.
M A F Gomes, T I Jyh, T I Ren, I M Rodrigues, C B S Furtado   +4 more
openaire   +1 more source

Deformation Mechanisms II: Miscellaneous

1993
Beside the gliding motion of dislocations, plasticity can be induced by a variety of other deformation mechanisms, such as deformation twinning, shear banding, grain boundary sliding and phase transformation. These deformation mechanisms will be described herein to give a more complete picture of plasticity.
Wei Yang, W. B. Lee
openaire   +1 more source

Deformation Mechanisms in Superplasticity

Annual Review of Materials Science, 1979
The phenomenon of micro grain superplasticity, in which metals and alloys deform extensively at elevated temperatures under small stresses without risk of rupture, has been well documented over the past decade. Our under­ standing of the rate-controlling mechanisms for superplastic deformation processes in terms of range of stress, temperature, and ...
openaire   +1 more source

Deformation mechanisms in polytetrafluoroethylene

Polymer, 1975
Abstract The deformation of isotropic and oriented polytetrafluoroethylene has been examined by wide-angle X-ray diffraction and electron microscopy. The deformation mechanisms which have been found to operate are 1010〈0001〉 chain direction slip and 1010〈1210〉 transverse slip.
openaire   +1 more source

Nanoscale Deformation Mechanisms in Collagen

2008
The mechanical properties of collagen Type I tissues are, like many biological connective tissues, crucially dependent on the hierarchical architecture at the nanometer and micron length scale. Triple helical collagen molecules aggregate into ordered fibrils of ∼ 100–200,nm diameter, which in turn can form parallel-fibered fiber bundles or lamellae at ...
openaire   +2 more sources