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Spherical indentation behavior of asphalt mixtures
(ASCE-AMER SOC CIVIL ENGINEERS, 2007-01-01)
The spherical indentation response of a dense bitumen macadam asphalt mixture with two different volume fractions of bitumen binder is investigated both experimentally and via an analytical model. The model for the indentation ...
Analysis of the effects of conical indentation variables on the indentation response of elastic-plastic materials through factorial design of experiment
(MATERIALS RESEARCH SOC, 2009)
In this work, the effects of conical indentation variables on the load-depth indentation curves were analyzed using finite element modeling and dimensional analysis. A factorial design 2(6) was used with the aim of quantifying ...
A critical reassessment of elastic unloading in sharp instrumented indentation experiments and the extraction of mechanical properties
(TAYLOR & FRANCIS LTD, 2011)
This work examines the extraction of mechanical properties from instrumented indentation P-h(s) curves via extensive three-dimensional finite element analyses for pyramidal tips in a wide range of solids under frictional ...
Nano-indentation of hybrid silica coatings on surgical grade stainless steel
(Elsevier Science Sa, 2008-01)
Hybrid silica-based coatings with tetraethoxysilane (TEOS), methyltrietoxysilane (MTES), hydroxyethyl-methacrylate (HEMA) and methacrylopropyl-trimethoxysilane (γMPS) as precursors, were employed to improve the performance ...
Análise numérica da indentação de materiais elastoplásticos
(BrasilUFSMCentro de Tecnologia, 2022-08-03)
This work aims at performing a numerical analysis on the indentation of elastoplastic materials. The simulations are carried out using the commercial finite element code Abaqus, employing an axisymmetric model. An important ...
Determination of elastic modulus of gelatin gels by indentation experiments
(Elsevier, 2015-07)
Mechanical characterization of hydrogels is a challenging task because they are much softer than metals, ceramics or polymers.The elastic modulus of hydrogels is within 100 -102kPa range. Because they easily break and slump ...
Atomistic simulation of tantalum nanoindentation: effects of indenter diameter, penetration velocity, and interatomic potentials on defect mechanisms and evolution
(Elsevier Science Sa, 2014-07)
Nanoindentation simulations are a helpful complement to experiments. There is a dearth of nanoindentation simulations for bcc metals, partly due to the lack of computationally efficient and reliable interatomic potentials ...
Simulação computacional de indentações isoladas e superpostas em aço de baixo teor de carbonoComputational simulation of isolated and superposed indentations in low carbon steel
(Universidade Federal de UberlândiaBrasilEngenharia Mecânica, 2019)