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 8 of 8 for “"Snap-through Buckling"”.
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Buckling and postbuckling of flat and curved laminated composite panels under thermomechanical loadings incorporating non-classical effects
… models which can be used to predict the buckling, post buckling and vibration behavior of flat and curved composite panels under thermomechanical loadings are developed in this work. Both models are based on higher-order transverse shear deformation theories of shallow shells that include …
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A computational study of the behaviour of hot-rolled portal frames in fire
… considerably. It is found that though the snap-through-buckling temperatures remain almost same, the collapse temperatures vary and the eaves rotations differ significantly. Similar to the single-span pitched roof portal frame it has been found that when MOTM is increased the eaves …
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Transient behavior of curved structures
… extreme loadings, the structure might undergo snap-through buckling, i.e., the structure is forced to its inverted configuration, inducing fatigue. The focus of this research is the development of a reliable and accurate model for simulating the nonlinear response of shallow arches under …
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Dynamic relaxation analysis of pretensioned networks supported by compression arches
… to planar and spatial problems exhibiting snap-through buckling and subsequent post-buckling response. The development of numerical methods for formfinding isreviewed at the, start of Chapter 7. The suitability of kinetic damping for controlling Dynamic Relaxation formfinding is …
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The dynamics of ultrafast motion in biological and bio-inspired systems: the case study of click beetles
… the ultrafast energy release and how power flows throughout the click beetle body. In this work, the key morphology of click beetle species of various shapes and sizes is imaged and quantified using environmental scanning electron microscopy (ESEM) and computerized tomography (CT). The kinematics …
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Geometrical Investigation on Escape Dynamics in the Presence of Dissipative and Gyroscopic Forces
… the existence of multiple escape routes usually through an index-1 saddle. Thus, this dissertation firstly studies the local behavior around the index-1 saddle to establish the criteria of escape taking into account the dissipative and gyroscopic forces. In the analysis, an idealized ball rolling …
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Mechanical response of polyether polyurethane foams under multiaxial stress and the initial yielding of ultrathin films
… of a bifurcation of equilibrium (Euler buckling of the microstruture of the foam), a global phenomenon that encompasses the entire microstructure of the foam at once. In this interpretation, the plateau stress (i.e., the value of stress on the stress plateau) is the eigenvalue associated …
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Kinky structures
… texts to aid with the understanding of strut buckling or other similar theoretical exercises.The inclusion of rotational springs can significantly alter the behaviour of a structure, bringing several potential benefits if inserted strategically. For instance, allowing a frame to be delivered …