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 599 for “"high strength"”.
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Development Of High Strength High Toughness Third Generation Advanced High Strength Steels.
<p>Third generation advanced high strength steels (AHSS's) are emerging as very important engineering materials for structural applications. These steels have high specific strength and thus will contribute significantly to weight reduction in automotive and other structural component. In this …
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High Strength Pervious Concrete
… to assess the performance of this new kind of high-performance concrete in order to establish material specifications for pervious concrete. Additionally, the manufacturing of Portland cement produces significant carbon dioxide emissions, contributing to global warming and unfavourable climate …
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Interface fracture in high strength concrete
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1993.
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Hydrogen degradation of high strength steel weldments
Thesis (Ocean. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1993, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science & Engineering, 1993.
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HIGH STRENGTH COLD ROLLED ASPHALT SURFACE COURSE MIXTURES
… terms of the long curing process and low early strength. Decreasing wastes from aggregate production processes, reducing land-filling and reducing CO2 emissions during hot bituminous mixture production and laying are the main target schemes for the environmentally friendly processes. Cold BEM is …
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Solidification cracking resistance of high strength aluminum alloys
… (DC) casting which is used in the manufacture of high strength aluminum alloys uneven cooling rates at different parts of the ingot cause thermal stresses. Due to these thermal stresses, cracks are initiated at the startup stage which may propagate as the stress elevates. Hence the evaluation of …
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Impact resistance of high strength fiber reinforced concrete
… full strain rate regime, from static loading to high strain rate loading, and finally to impact loading. The compressive toughness of FRC under static loading was studied using an existing Japanese standard (JSCE SF-5). Then, a test method for FRC under compressive impact loading was developed, …
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Development Of A High Strength Laminate Repair System
<p>Composite manufacturing often requires repairs at some point during the life of the part. Working with LM Wind Power, the Chemical and Mechanical Engineering Departments at the University of North Dakota worked to develop a new laminate repair system to be used in composite repairs. Both …
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Development of third generation advanced high strength steels
… were investigated as third generation advanced high strength steels targeted for automotive applications. Large additions of manganese (>13 wt%) and carbon (</p> <p>Duplex steels with different volume fractions of primary <em>δ</em> -ferrite were used to study the crystallography of austenite …
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Friction Stir Welding of High-Strength Automotive Steel
… to create acceptable welds in thin-plate, ultra-high-strength steels (UHSS) by way of friction stir welding (FSW). Steels are welded together to create tailor-welded blanks (TWB) for use in the automotive industry. Dual Phase (DP) 590, 780, and 980 steel as well as Transformation-Induced …
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High strength carbon nanofibers derived from electrospun polyacrylonitrile
… (PAN) have not yet demonstrated the high tensile strength and Young’s modulus of their microscale counterparts. This is due to the current lack of understanding of the effect of electrospinning conditions on the quality of PAN precursor nanofibers, as well as the effect of …
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Performance issues for high strength concrete in bridges
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.
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Hydrogen assisted cracking of high strength steel welds
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1987.
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Residual stresses in weldments in high-strength steels.
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Ocean Engineering.
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Flexural Behaviour of Concrete Beams with High Strength Reinforcement
Using High Strength Reinforcement (HSR) in concrete construction allows steel volumes to be reduced, and economies to be realized. CSA Standard A23.3:19 “Design of Concrete Structures” limits the maximum yield strength for design to 500 MPa. This thesis investigates the flexural behavior of …
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Dynamic modelling of lightweight high-strength concrete under impact
… experimental studies on modeling of lightweight high-strength concrete (LWHSC) under static and dynamic loadings. A new strain-based damage model is developed based on continuum damage mechanics. The proposed model incorporates the strain rate effects on various concrete properties, such as …
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Web crippling of high strength cold-formed steel beams
<p>"The structural behavior of high strength cold-formed steel beams subjected primarily to web crippling was investigated analytically and experimentally. In this study hat sections and I-beams, formed from five different types of high strength sheet steels commonly used in the automobile …
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Shear failures in bending of advanced high strength steels
Includes bibliographical references (pages 245-251).
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Axial compressive behaviour of FRP-confined high-strength concrete
… FRP-confined concrete columns manufactured with high strength concrete (HSC) remain very limited. This thesis presents the results from a Ph.D. study at the University of Adelaide that was aimed at undertaking a comprehensive review on the axial compressive behaviour of monotonically-loaded …
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