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.
Results
Showing 1 to 20 of 104 for “"Tensile test"”.
-
Comparison of machining and tensile test data of low carbon steel.
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1945
-
Modeling of Acoustic Emission Failure Mechanism Data from a Unidirectional Fiberglass/Epoxy Tensile Test Specimen
… (AE) flaw growth data that resulted from the tensile test of a unidirectional fiberglass/epoxy specimen. The data collected and stored during the test were the six standard AE quantification parameters for each event. A classification neural network was used to sort the data into five failure …
-
Isolating Failure Mechanisms in a Fiberglass/Epoxy Tensile Test Specimen Using Acoustic Emission Signal Parameters
… in a 0° unidirectional, fiberglass/epoxy tensile test specimen. Since several failure mechanisms were known to be present, the lack of any distinctly identifiable bands in the original amplitude distribution indicated that there was considerable overlap between the AE signals of the …
-
Estudo da fadiga de duas misturas de solo-cimento
… work deals with repeated-load for flexural test and indirect tensile test, for two differents tipes of soil-cement: lateritic soil-cement mixture and saprolitic soil-cement mixture. Fatigue curves, in terms of stress, strain and stress level, were developed for the two stabilized materials, …
-
Finite element analysis of additive manufacturing of polymers using selective laser sintering, challenges and potentials
… Utilizing AAS, the print process to create tensile test specimens was simulated and the resultant virtual parts were subjected to tensile loading in ANSYS Mechanical. The output of this simulation was then experimentally verified with physical tensile test specimens manufactured using SLS. …
-
Applicability of undermatched welds for high strentgh steel structures
… U.S. Navy, quenched and tempered steels. The test methods are the self restraint cracking test, the tensile test and the fatigue test. The investigated parameters are the strength of the weld metal and the preheat temperature. The self restraint cracking test does not show clearly the expected …
-
DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES
… today.</p> <p>This study offers a solution by testing five durable polymer materials against 50 chemicals, using two rapid chemical degradation assessment techniques. The first technique involves gravimetric analysis of the weight change following constant immersion against the chemical …
-
A study on extrusion of multiple material bonding for fused depostion modeling
… Sample for tetsing will follow the ASTM638 Tensile test and Iso 718 for flexural test. Flexural test,ABS and PLA is the most flexural compared to others,whice are maximum value Force is 65N and for strok is 7.5mm,and for the tensile test ABS and ABS with butt joint are the most high value …
-
Development and Characterization of Friction Bit Joining: A New Solid State Spot Joining Technology Applied to Dissimilar Al/Steel Joints
… Initial joint strengths observed in lapshear tensile testing averaged only 978.5 pounds (4.35 kN), with a relatively high standard deviation for the data set. Final lapshear tensile test results were improved to an average of 1421.8 pounds (6.32 kN), with a significantly lower, and acceptable, …
-
Butt fusion welding of polyethylene pipes
… twin cutter arrangement was used to obtain the test specimens from around the circumference of the pipes. Differential scanning calorimetry was used to study the effect of sample preparation methodology on the thermo-oxidative stability. Polarised light microscopy and image analysis were used to …
-
Kajian terhadap sifat mekanik bagi jenis corak pengisian dalam proses pembuatan tiga demensi
… are fabricate according to the ISO standard for tensile test and flexure test. The results show that marrocanstar have high tensile strength with value 589.41N for maximum force and percentage infill at 80%, while for flexure strength, infill pattern marrocanstar with value 108.82N at percentage …
-
High-Strain Rate Tensile Characterization Of Graphite Platelet Reinforced Vinyl Ester Based Nanocomposites Using Split-Hopkinson Pressure Bar
… are characterized under both dynamic tensile and compressive loading. Dynamic direct tensile tests are performed applying the reverse impact Split Hopkinson Pressure Bar (SHPB) technique. The specimen geometry for tensile test is parametrically optimized by Finite Element Analysis …
-
Study of microstructure evolution in F/M steel T91 by in-situ synchrotron wide-angle X-rays scattering
… (WAXS) was used to investigate T91 during tensile test under 3 different temperatures: room temperature (RT), 450C, 550C, respectively. By fitting scattering patterns, information of diffraction peaks and their variation trends with respect to macroscopic strain were recorded for further …
-
Composite Structure Ultimate Strength Prediction from Acoustic Emission Amplitude Data
… predicting the ultimate strength of composite tensile test specimens. From an original sample set of only six specimens, a multivariate statistical analysis was used to generate an ultimate strength prediction equation. The variables of the multivariate statistical analysis were obtained …
-
Mechanical characterization of alloy 709 stainless steel after high temperature aging for application in advanced reactors
… designs. Alloy 709 was then machined into tensile specimens with gauge lengths of 5.0 mm and tested using an Instron 1331 load frame. Tensile tests were conducted with a constant strain rate of 0.001 s\textsuperscript{-1} and the results were compared. It was found that overall, the total …
-
Viscoelastic characterization of polyurea based polymers
… and Arcan shear. The prediction of uniaxial tensile test followed the experimental response closely while the compressive response followed it with stress and strain shifts, suggesting that the voids in the material could shift the compressive response of the material.
-
Mechanical testing of rapid-prototyping refractory ceramic print media
… alumina-silica ceramics were mechanically tested to ascertain their ultimate tensile strengths and observed to determine their dimensional consistency over the printing and post-printing process. The equipment used to perform tensile testing was designed and built for use with …
-
Molecular Dynamics Model of Carbon Nanotubes in EPON 862/DETDA Polymer
… Two simulations were performed in order to test the implementation of the potential. The first one is a tensile test on a SWCNT, leading to a Young's modulus of 1.4 TPa at 300K. The second one is a pull-out test of a SWCNT from an originally uncured EPON 862/DETDA matrix.</p>
-
Some aspects of the mechanical testing of hot rolled asphalt surfacings.
… up to 55% by mass of coarse aggregate, were tested over a range of binder contents using the following test methods: Marshall Test Indirect-Tensile Test Wheel-Tracking Test. The results obtained were used to assess the ability of each of these methods to (i) assist in the selection of an …
-
Improvements in digital image correlation and application in material mechanical test
… is implemented and applied to the miniature tensile test. A convenient experimental method to determine the true stress-strain curve is proposed. The instantaneous cross-section area is estimated by only one camera in aid of DIC method. The derived true stress-strain curves and mechanical …
Page 1 of 6