Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 479 for “"frictional"”.
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Superkilen: Frictional fitting in
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Frictional characteristics of quartz.
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1966
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Inequality Under Frictional Labour Markets
… inequality in wealth, when labour markets are frictional. Chapter 1 investigates the implications of search frictions and human-capital accumulation for the equilibrium distribution of wages when firms invest optimally in match-specific productivity. Optimal investment choice is incorporated in …
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Frictional vibrations in structural polymers
… investigated to determine their influence on the frictional behavior of the ABS materials. These parameters included: the time dependence of friction under static load, friction-normal load relationships, surface roughness, internal lubrication, friction-velocity relationships, and system …
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Frictional oscillations in elastomeric sliding
The impetus for this study was the noise generated by an automotive stabilizer bar, rotating in an elastomeric bushing. The focus of the research is to determine the conditions under which noise or stick-slip occurs. Elastomers tested include natural rubber with 0,5,10, 20, and 50 phr (parts per …
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The frictional characteristics of Westerly granite.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1966. Ph.D.
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Some studies of frictional properties of fabrics
The frictional (fricative) properties of some 23 fabrics are reported. These properties include frictional resistance, amplitude of resistance, number of peaks, difference between static and kinetic frictional resistance in addition to coefficients of friction, all determined by trace analysis. …
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A nonlinear interface formulation for frictional contact
… integration points. A new approach for handling frictional conditions under large deformations is introduced. The proposed approach is designed to increase algorithmic efficiency and circumvent numerical issues encountered when modeling stick/slip conditions in Coulomb frictional contact …
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On the solution of frictional contact problems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1990.
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Frictional resistance of concrete on a geocomposite material
The frictional resistance provided by the underlying layers of a concrete slabs on ground has a large influence on the cracking behavior. To adequately judge the quality of performance of the slabs, it is imperative to investigate the frictional resistance to movement and other relations of the …
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Adhesive and frictional tarsal pads in stick insects
Insects rely on specialized attachment systems to adhere to and move across substrates. For this purpose, stick insects (Phasmatodea) employ two types of smooth attachment pads on their tarsi: the pretarsal arolium, responsible for adhesion, and the tarsal euplantulae, generating friction. These …
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Characterizing the Frictional Interface in Friction Stir Welding
<p>Quantitative understanding of frictional phenomena between the tool and the workpiece is essential for accurate modeling of the Friction Stir Welding (FSW) process. Two methods of measuring the tool-workpiece interface are proposed that allow frictional measurements to be made under extreme …
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An Investigation of the Frictional Characteristics of Minerals
Made available in DSpace on 2014-12-05T17:37:15Z (GMT). No. of bitstreams: 1 6101625.pdf: 3515444 bytes, checksum: e72a48ca164b3e2086162c0e09962e58 (MD5) Previous issue date: 1961
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DiffCloth: Differentiable Cloth Simulation with Dry Frictional Contact
… based on Projective Dynamics (PD) and with dry frictional contact. We draw inspiration from previous work to propose a fast and novel method for deriving gradients in PD-based cloth simulation with dry frictional contact. Furthermore, we conduct a comprehensive analysis and evaluation of the …
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Deep penetration into frictional ductile and brittle materials
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1992.
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Reducing Frictional Resistance between Orthodontic Bracket and Arch Wire
… a proposed clinical method for decreasing frictional resistance between an orthodontic bracket and an archwire during usage of the continuous edgewise method of space closure. It was hypothesized that altering the leading edge of the bracket (in the direction of retraction) would …
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Firm growth and worker turnover in frictional labour markets
… turnover, and worker reallocation in frictional labour markets. Chapter 1 presents empirical evidence using German longitudinal matched employer-employee data on the relationship between worker flows and employer characteristics. In particular, the analysis distinguishes between …
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Labour market participation and frictional unemployment in stochastic equilibria
… in shaping unemployment fluctuations in frictional labour markets. In the First Chapter, I document several facts on the behaviour of inactive individuals in the United Kingdom using the Labour Force Survey, observing a high degree of heterogeneity within those that are not classified as …
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Analysis of the scratch test for cohesive-frictional materials
… hardness and strength properties of cohesive-frictional materials of the Mohr-Coulomb and Drucker-Prager type. Based on the lower-bound yield design approach, closed form solutions are derived for frictionless scratch devices, and validated against computational upper bound and elastoplastic …
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Experimental investigation of frictional properties of the human fingerpad
… in this experiment. The data show distinct frictional behaviors for different indentors. For the glass surface, the curves of normal as well as shear forces increased smoothly to steady state values. When the indentation depth was higher, the normal and shear forces were larger, but the …
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