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.
Results
Showing 1 to 14 of 14 for “"Local Stiffness"”.
-
The potential role of shearing load in the development of toe tip necrosis syndrome
… an abraded worn claw may be more susceptible to local damage caused by small particles, further increasing potential for pathways to develop. The objectives of this study were: 1. Compare local stiffness along the white line of abraded claws and control claws. 2. Compare contrast-enhanced HR-pQCT …
-
NMR-Bildgebung an periodisch bewegten Systemen
… this method. In this context the aim of mapping local stiffness in a body and representing it in form of an image is commonly refered to as ‘mr-elastography’. This can be accomplished by observing an induced mechanical wave passing through the material. Here it is necessary to measure the local …
-
ΕΛΕΓΧΟΜΕΝΗ ΔΙΑΔΟΣΗ ΡΩΓΜΩΝ ΛΟΓΩ ΚΟΠΩΣΗΣ ΣΕ ΣΥΝΘΗΚΕΣ ΣΥΝΤΟΝΙΣΜΟΥ
… ARE USED. THE DEPTH OF THE CRACK DETERMINES THE LOCAL STIFFNESS INTRODUCED BY THE CRACK, WHICH IN TURN INFLUENCES THE DYNAMIC RESPONSE OF THE MEMBER UNDER AN EXTERNAL EXCITATION OF CONSTANT AMPLITUDE AND FREQUENCY. AS THE CRACK PROPAGATES, INTRODUCES ADDITIONAL FLEXIBILITY TO THE SYSTEM . AS THE …
-
Interactive Topology Optimization with Hybrid Truss and Continuum Elements Types
… optimization is achieved by creating separate local stiffness matrices and mapping them respectively to the same global design space to perform optimization together. The interactive drawing functions are used as add-in truss members that users can select the amount and draw in the length and …
-
A continuum theory with long-range forces for solids
A non-local integral-type continuum theory, introduced by Silling [61] as peridynamic theory, is analyzed. The theory differs from classical (local) continuum theories in that it involves long-range forces that act between continuum particles. In contrast to existing non-local theories, surface …
-
Effects of Voids on Delamination Behavior Under Static and Fatigue Mode I and Mode II
… blade manufacturing due to their high specific stiffness, strength and fatigue life. Glass fiber composites are used extensively in light-weight structural components for wind turbines, aircrafts, marine craft and high performance automobile because glass fiber is inexpensive and usually …
-
Interfacial Properties of Graphene and 2D Materials Heterostructures Investigated by Scanning Probe Microscopy
… CR-AFM is demonstrated with the sensitivity to local stiffness changes that arise from a single atomic layer of a van-der-Waals-adhered material. To this end, a new approach, combining CR-AFM with first-principles calculations and continuum mechanics modeling, is introduced, which can yield a …
-
Microfluidic Dual-Gel Cell Culture Model For Studying Cell Migration Under Controlled Interstitial Flow
… inverse correlation between the permeability and stiffness of hydrogel matrices. Moreover, cell migration behaviors are influenced by the physical confinement in the ECM and cell-binding sites. Therefore, identifying factors and mechanisms regulating cell migration necessitates the ability to …
-
Molecular structure, hierarchical assembly and stimuli-responsive mechanics of tropoelastin and elastin biomaterials
… quiescent domain to explain the effect of local stiffness perturbation on dynamics, reconciling the contradictory needs for overall structural flexibility and the organizational requirement of specific domains towards protein self-assembly. Second, we develop an atomistic model of …
-
Data-driven system identification of strongly nonlinear modal interactions and model updating of nonlinear dynamical systems
… populate the dynamics of a cantilever beam with local stiffness nonlinearity and that of a linear oscillator coupled to a vibro-impact nonlinear energy sink (i.e., a strongly nonlinear broadband absorber). The second portion examines the physical underpinnings of the proposed methodology for …
-
Acoustic Radiation Force Impulse Imaging of Myocardial Performance
… to reflect myocardial performance is myocardial stiffness. Acoustic radiation force impulse (ARFI) imaging has been demonstrated to be capable of visualizing variations in local stiffness within soft tissue. </p><p>In this thesis, the initial investigations into the visualization of myocardial …
-
Experimental and Numerical Analysis of Damage in Notched Composites
… extracted taking into account the reduction in local stiffness and mass induced by the center hole. Numerical and analytical natural frequency values are then compared with those obtained through experimental vibrational tests, and the accuracy of each finite element (FE) and analytical model …
-
Plastic Deformation in Complex Crystal Structures
… A Peierls model generalised to use the entire stiffness tensor has been implemented in Python; this allows the investigation of the effect of varying anisotropy on the yield stress of materials that would not be picked up by the use of polycrystalline elastic constants. Calculations using the …
-
Magneto-mechanical systems for ultra-low frequency data transmission: Dynamics, losses, and driving mechanisms
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01