Results 101 to 110 of about 204,727 (297)
Open Engineering, 2022 Structural materials under various mechanical loads are damaged as a result of their plastic deformation and subsequent nucleation and propagation of cracks.
Malicki Maciej +2 more
doaj +1 more source
Picosecond time scale imaging of mechanical contacts [PDF]
, 2010 By means of an ultrafast opto-acoustic technique we study the nanoindentation of thin chromium films on sapphire substrates using a ceramic ball bearing.
LI VOTI, Roberto +2 more
core +1 more source
Axisymmetric indentation of curved elastic membranes by a convex rigid indenter
International Journal of Non-Linear Mechanics, 2011 Motivated by applications to seed germination, we consider the transverse deflection that results from the axisymmetric indentation of an elastic membrane by a rigid body. The elastic membrane is fixed around its boundary, with or without an initial pre-stretch, and may be initially curved prior to indentation.
Pearce, SP, King, JR, Holdsworth, MJ
openaire +6 more sources
Stress mapping reveals extrinsic toughening of brittle carbon fiber in polymer matrix
Science and Technology of Advanced Materials, 2020 We conducted an in situ study on CFRP fracturing process using atomic-force-microscopy-based stress-sensitive indentation. Tensile stress distribution during fracture initiation and propagation was directly observed quantitatively.
Hongxin Wang +7 more
doaj +1 more source
International Journal of Solids and Structures, 2011 AbstractKnoop indentation tests have long been a standard method for material characterization due to the fact that they provide an easy, inexpensive non destructive and objective method of evaluating basic properties from small volumes of materials. In spite of the broad use, Knoop indentation has never been analysed and its methodology is basically ...
A.E. Giannakopoulos, Th. Zisis
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MEASUREMENT OF MICROHARDNESS OF PHOTORESIST FILMS ON SILICON BY THE SCRATCHING METHOD
Приборы и методы измерений, 2016 In recent years new types of resist for nano and submicronic lithography are intensively developed. As perspective materials for resist various polymeric compositions on a basis thermally and mechanically resistant polymers are considered. The purpose of
D. I. Brinkevich +5 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2020 Johnson-Cook (JC) flow stress model is widely used in computer aided engineering (CAE) for simulations of car crash and machining behaviors. The JC parameter C, which is a material constant in the model associated with strain rate dependency, is usually ...
Kiyohiro ITO +2 more
doaj +1 more source
Journal of Fluid Mechanics, 2017 We consider the influence of a smooth three-dimensional (3-D) indentation on the instability of an incompressible boundary layer by linear and nonlinear analyses. The numerical work was complemented by an experimental study to investigate indentations of
Hui Xu +4 more
semanticscholar +1 more source
Nihon Kikai Gakkai ronbunshu, 2020 2D-like indentations are performed by molecular dynamics simulation as “nanometric indentation cutting”. A 90 degree triangle rigid bcc-Fe indenter with (001) or (110) surfaces is continuously drove into single crystalline fcc-Ni and Cu with free side ...
Kisaragi YASHIRO +3 more
doaj +1 more source
Load-depth sensing of isotropic, linear viscoelastic materials using rigid axisymmetric indenters [PDF]
, 2016 An indentation experiment involves five variables: indenter shape, material behavior of the substrate, contact size, applied load and indentation depth. Only three variable are known afterwards, namely, indenter shape, plus load and depth as function of ...
de With, G. +2 more
core +2 more sources