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Showing 1 to 20 of 42 for “"bending strength"”.
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Investigation of Ultimate Bending Strength of Steel Bracket Plates
… plate is based on the material tensile rupture strength times the net elastic section modulus. Different bolt and plate sizes were tested to determine if this model is correct. It was found that the current model is conservative and that the material tensile rupture strength times the net …
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Allowable bending strength enhancement of 2 by 4 lumber by tension and compression proofloading
… has established that correlations exist between bending and tension, and bending and compression strength of lumber. Because of this correlation, improvement in bending strength may be realized from proofloading in tension or compression. The data utilized in a reliability analysis was from …
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The effect of compositional and geometrical changes to the bending strength of the Ghanaian ceramic pot filter
… problem, the author performed a three-point bending test on rectangular-prism clay samples with varying recipes and thicknesses in an attempt to determine bending strengths associated with the recipes with the aim of moderating the lip failure due to the possible failure mechanism of bending …
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Synthesis of Tooth Profiles and Gears for Increased Load Capacity Based Upon Hertz Surface Pressure Considering Contact Ratio and Bending Strength
Made available in DSpace on 2014-12-09T17:13:46Z (GMT). No. of bitstreams: 1 6901382.pdf: 8015585 bytes, checksum: b83448d0ef299978601f6a5c957b4b49 (MD5) Previous issue date: 1968
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Preparation of glass-ceramics largely using steelmaking slags and study on the effect of iron content on properties of glass-ceramics
… the microstructure of glass-ceramics formed. Bending strength and micro-harness of the samples were compared. When 12g of anthracite was used, ionic iron (Fe 2+ /Fe 3+ ) content was reduced to 4.7% and total iron content was reduced to 8.0% in parent glass. The main crystalline phases formed …
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Design of Sintered, Tough, Oxide Laminate and Fibrous Monolithic Composites
… deflecting interphase material with three point bending strength of 1.5 MPa and 61% of theoretical density after heat treatment at 1600°C for 10h. The 50 vol% alumina · 50 vol% YAG in situ composite had a bending strength of 361 MPa after sintering at the condition of 1700°C/5h. A …
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Reconsidering Composite Action on Strength of Wood Roof Systems
… retrofits, it is desired to bring these under-strength roofs into compliance with current codes by reconsidering composite action, produced by the joist-sheathing interaction of the assembly, on the bending strength of joists. The effect of composite action can be quantified by considering a …
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Study on preparation of high performance CaO-MgO-Al2O3-SiO2 system glass-ceramic with industrial by-products
… wt. %=12%) were found with the highest bending strength, 94 MPa and 89 MPa respectively. In addition, with augite and diopside as primary crystalline phase, they also had a Vickers micro-hardness of 6.2 GPa and 6.3 GPa. When applied single-stage heat treatment, sample H4 obtained a …
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Prediction of Bending Properties of Lightly Modified Bamboo from Bambusa blumeana
… were measured and tested non-destructively in bending. Then, the culms were processed into LMB of three different thicknesses. After processing, the control round bamboo and the LMB were tested destructively in bending. Prediction methods for the strength and stiffness of LMB included the use …
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Development of timber concrete composite (TCC) beam with post-tensioning
Post-tensioning is a method of reinforcing (strengthening) concrete or other materials with high-strength steel strands or bars. The timber type that is used in all researches is the engineering timber products laminated veneer lumber (LVL) and glue-laminated wood (Glu-Lam), while avoiding using …
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The Effects of Nigerian Fungi on Nigerian Wood
… assess wood decay were weight loss and loss in bending strength. Bending strength losses were measured on a tensometer with specially designed three-point loading jaws. There was a close correlation between strength and weight loss. The ability of the test fungi to decay wood at various biocidal …
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The Effects of Nitrogenous Compounds on Decay of Wood by Soft-Rot Fungi
… to assess decay were weight loss and loss of bending strength. Bending strength was measured on a tensometer with specially designed three-point loading jaws. Strength loss and weight loss were closely correlated in decay tests with Chaetomium globosum but in experiments with Trichoderma …
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Cross-sectional Morphology and Mechanical Loading in Plio-Pleistocene Hominins: Implications for Locomotion and Taxonomy
… are primarily due to differences in average bending and torsional strength. KNM-ER 738, which has been allocated to both Paranthropus and Homo, is more similar to paranthropine samples than to modern and fossil Homo. In the midshaft femur, fossil Homo sp. and H. erectus cluster with modern …
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Strengthening historic covered bridges to carry modern traffic
… this study was to develop means and methods to strengthen timber superstructural components of historic covered bridges using Glass Fiber Reinforced Polymer (GFRP) composite materials. The strengthening methodologies developed during this research project were designed to conform to the …
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Maximum torque of combination threats for spur gear based on AGMA and JGMA standards
… known to happen to spur gears. There are tooth bending failure (breakage) and tooth surface pitting failure. The focus of this study however will be on the JGMA and AGMA standards of gearing. Different methods were used to gather relevant data from both standards. JGMA data were gathered from a …
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A study of the recrystallization and the mechanical properties of indium
… and the mechanical properties of tensile strength, elongation, reduction in area and hardness were determined for 99.97% indium. Metallographic techniques were developed and stress rupture data were obtained.</p> <p>Single crystals of indium were grown in a horizontal furnace with a …
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Functionally Graded Fiber-Reinforced Cementitious Composites---Manufacturing and Extraction of Cohesive Fracture Properties Using Finite Elements and Digital Image Correlation
… volume fraction through the beam depth. The bending test shows the enhanced bending strength of the FGFRCC without delamination at layer interface. Microstructure investigation verifies the fiber gradation and the smooth transition between homogeneous layers. The remaining part of the study …
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Application of Temporary Restorations Obtained through 3d Laser Stereolithographic Printer // Приложение на временни конструкции получени чрез 3d принтиране на лазерен стереолитографски принтер
… LT Clear Resin® changed. The mechanical and strength properties of the newly obtained resins for 3D printing of temporary structures was established by performing a specially designed experimental setup on task 3 that fully meet the minimum requirements for bending strength set in …
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An Underwater Explosion-Induced Ship Whipping Analysis Method for use in Early-Stage Ship Design
… the whipping loads. The calculated hull girder bending moments are compared to the ultimate bending strength of the hull girder to determine if the girder will collapse. The analysis method is found to be a useful method for determining preliminary UNDEX-induced whipping design load cases for …
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Determining mechanical properties and type of fracture of osseous tissues from spent hens
This study was undertaken to evaluate shear, bending, and torsion test procedures on the radius, ulna, humerus, femur, tibia, and tarsometatarsus of 72 week old caged layers. Shear and bending properties were determined to evaluate the effects of juvenile protein feeding sequence, body size, and …
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