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 6 of 6 for “"Elastic-plastic behavior"”.
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Effects of Defects on the Performance of Hierarchical Honeycomb Metamaterials Realized Through Additive Manufacturing
… joints, partially missing layers, and irregular elastic plastic behavior due to toolpath. It is important to understand the effect of defects on the overall performance of the structures to determine if the manufacturing defect(s) are significant enough to abort and restart the manufacturing …
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Matrix-fiber stress transfer in composite materials elasto-plastic model with an interphase layer
… fiber break. This scheme takes into account the elastic-plastic behavior of both the matrix and the interphase, and it includes the treatment of stress concentration near the discontinuities of the fibers. The radius of the fibers and the mechanical properties of the matrix were varied in order …
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Mechanics of inelastic deformation and delamination in paperboard
… is one of the most widely used materials. The inelastic deformation of paperboard plays a crucial role during many manufacturing processes (e.g., the converting process whereby paperboard is converted into a product such as a milk carton by punching and subsequent folding) and during in-service …
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Prediction of service load of concrete structures after cracking using ultrasonic technique
… of this study is to investigate the cracking behavior of fractured concrete structures and to introduce a new approach to assess their remaining service lives. A novel ultrasonic technique is utilized to detect crack propagation in notched beams of mortar, plain concrete and reinforced …
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Mechanical and Physical Properties in Additive Friction Stir Deposited Aluminum
… at interfaces and affected the materials' elastic-plastic behavior. For the 7075 alloy, the strength and failure mechanism of the material were affected by the presence of the graphite lubricant used during processing. The use of graphite increased the variability of the mechanical …
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Αστοχία ρηγματομένων όλκιμων πλακών με δύο συμμετρικές εγκοπές
The objective of this dissertation is to study the interaction between a crack and two symmetrical edge notches perpendicular to the plane of the crack. Based on the strain energy density criterion the critical stress for crack growth initiation is determined. The influence of body geometry as it …