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 130 for “"large deformation"”.
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Large deformation dynamic bending of composite beams
The large deformation response of composite beams subjected to a dynamic axial load was studied. The beams were loaded with a moderate amount of eccentricity to promote bending. The study was primarily experimental but some finite element results were obtained. Both the deformation and the failure …
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Finite element analysis of large deformation contact problems
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1992.
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On elastic-plastic large deformation analysis of beams
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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Large deformation behavior of long shallow cylindrical composite panels
An exact solution is presented for the large deformation response of a simply supported orthotropic cylindrical panel subjected to a uniform line load along a cylinder generator. The cross section of the cylinder is circular and deformations up to the fully snapped through position are …
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Material and Geometric Analysis of Structures Subjected to Large Deformation
… hyper-elastic membranes subjected to extremely large deformation. These membranes are used in a reconfigurable tooling system (RTS) which was under development during the course of this study. (2) Establishing a continuum constitutive model for fabric materials under in-plane large deformation …
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Large deformation of rigid-viscoplastic cantilevers subjected to impulsive loading
… straight) subjected to dynamic loads leading to deformations of the order of the dimensions of the structure is considered. The material is treated as rigid-viscoplastic; in this idealisation elastic effects are ignored, and the dependence of the yield stress on the rate of strain is taken into …
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Analysis of large deformation offshore geotechnical problems in soft clay
… interaction, most prior research on large deformation problems has been limited to simplified assumptions on drainage conditions and constitutive behavior. This thesis investigates two large deformation problems in soft clay and proposes a methodology for performing coupled flow and …
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Design and large deformation response of additively-manufactured shell-lattices
… cellular solids are porous structures with a large variety of applications, from energy absorption to medical engineering. In an attempt to identify isotropic configurations with high low and large strain mechanical properties, detailed numerical simulations are conducted on a wide range of …
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A combined isotropic-kinematic hardening model for large deformation metal plasticity
Includes bibliographical references.
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On large deformation and large strain elastic-plastic analysis of continua
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1983.
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Large deformation structural performance of double skin composite construction using British Steel's 'Bi-Steel'
… throughout the elastic and plastic regions of deformation and includes local buckling of the compression plate. Analytical solutions are developed for all aspects dealt with by this thesis which are supported with an experimental test programme. The test programme uses 16 full-scale, wide beam …
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Crazing and large deformation behavior in a model set of polystyrene/polybutadiene diblock copolymers
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1984.
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Development and implementation of robust large deformation and contact mechanics capabilities in process modelling of composites
Autoclave processing of large scale, one-piece structural parts made of carbon fiber-reinforced polymer composite materials is the key to decreasing manufacturing costs while at the same time increasing quality. Nonetheless, even in manufacturing simple flat parts, residual strains and stresses are …
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Simulating large deformation processes using an explicit element-free Galerkin method: with applications to material forming
… Galerkin method was used to simulate a range of large deformation problems. Initially, a total formulation was utilised, in which the neighbourhood information was kept constant throughout. Through several numerical examples, the benefits of meshfree methods in the simulation of large deformation …
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Large deformation analysis of laminated composite structures by a continuum-based shell element with transverse deformation
… computer program is developed for the transient large deformation analysis of laminated composite plate/shell structures. In order to satisfy the plate/shell surface traction boundary conditions and to have accurate stress description while maintaining the low cost of the analysis, a newly …
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Understanding the mechanics of growth: A large deformation theory for coupled swelling-growth and morphogenesis of soft biological systems
… Experiments indicate that these systems swell by large amounts and that the swelling and growth are intrinsically coupled, with the swelling being an important driver of growth. However, most existing theories for swelling coupled growth employ linear poroelasticity, which is limited to small …
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Experimental investigation and constitutive modeling of the large deformation behavior of anisotropic steel sheets undergoing strain-induced phase transformation
… Plasticity (TRIP)- assisted steels. The large deformation behavior of conventional steels is governed by crystallographic slip. In the case of TRIP steels, the phase transformation provides an additional microstructural deformation mechanism, which has a particularly strong effect on the …
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