Results 21 to 30 of about 115,932 (276)

A Novel Experimental Test Bench to Investigate the Effects of Cutting Fluids on the Frictional Conditions in Metal Cutting

open access: yesJournal of Manufacturing and Materials Processing, 2020
The tribological effect of cutting fluids in the machining processes to reduce the friction in the cutting zone is still widely unknown. Most test benches and procedures do not represent the contact conditions of machining processes adequately ...
Thomas Lakner, Marvin Hardt
doaj   +1 more source

A phase-field method for modeling cracks with frictional contact

open access: yes, 2019
We introduce a phase-field method for continuous modeling of cracks with frictional contacts. Compared with standard discrete methods for frictional contacts, the phase-field method has two attractive features: (1) it can represent arbitrary crack ...
Choo, Jinhyun, Fei, Fan
core   +2 more sources

Contact Hamiltonian Description of 1D Frictional Systems

open access: yesCommunications in Advanced Mathematical Sciences, 2021
In this paper, we consider contact Hamiltonian description of 1D frictional dynamics with no conserved force. Friction forces that are monomials of velocity, and sum of two monomials are considered.
Furkan Semih Dündar, Gülhan Ayar
doaj   +1 more source

Influence of Heterogeneous Contact Stiffness and Heterogeneous Friction Coefficient on Frictional Squeal

open access: yesShock and Vibration, 2018
Contact stiffness and friction coefficient are excitation sources and key influencing factors to frictional squeal with obvious inhomogeneous characteristic that is always neglected.
Lijun Zhang, Wenbo Li, Dejian Meng
doaj   +1 more source

Dynamic induced softening in frictional granular material investigated by DEM simulation [PDF]

open access: yes, 2017
A granular system composed of frictional glass beads is simulated using the Discrete Element Method. The inter-grain forces are based on the Hertz contact law in the normal direction with frictional tangential force.
Carmeliet, Jan   +4 more
core   +3 more sources

Frictional Effects in Biomimetic Scales Engagement

open access: yes, 2015
Scales engagement can contribute significantly to nonlinear bending behavior of elastic substrates with rigid biomimetic scales. In this letter, we investigate the role of friction in modulating the nonlinearity that arises due to self-contact of scales ...
Ebrahimi, Hamid   +2 more
core   +1 more source

Scaling laws for frictional granular materials confined by constant pressure under oscillatory shear [PDF]

open access: yes, 2020
Herein, we numerically study the rheology of a two-dimensional frictional granular system confined by constant pressure under oscillatory shear. Several scaling laws for the storage and loss moduli against the scaled strain amplitude have been found. The
Hayakawa, Hisao, Ishima, Daisuke
core   +2 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

A computational approach for thermo-elasto-plastic frictional contact based on a monolithic formulation using non-smooth nonlinear complementarity functions

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2018
A new monolithic solution scheme for thermo-elasto-plasticity and thermo-elasto-plastic frictional contact with finite deformations and finite strains is presented.
Alexander Seitz   +2 more
doaj   +1 more source

Frictional Response of Reinforced Polymers under Quasistatic and Fast-Transient Dry Contact Conditions

open access: yesLubricants, 2023
Reinforced polymers have recently gained interest because of their high stiffness associated with the classical features and cost-effectiveness of polymers.
Davide Tonazzi   +3 more
doaj   +1 more source

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