نتایج جستجو برای: t651
تعداد نتایج: 138 فیلتر نتایج به سال:
1. Abstract. This paper describes some aspects of reconstruction of microstructures in three dimensions. A distinction is drawn between tomographic approaches that seek to characterize specific volumes of material, either with or without diffraction, and statistical approaches that focus on particular aspects of microstructure. A specific example of the application of the statistical approach i...
Microstructure and fracture toughness properties of CMT repairing welded 7075-T651 MIG welding joint
In this study, a numerical approach-the discontinuous Meshless Local Petrov-Galerkin-Eshelby Method (MLPGEM)-was adopted to simulate and measure material plasticity in an Al 7075-T651 plate. The plate was modeled in two dimensions by assemblies of small particles that interact with each other through bonding stiffness. The material plasticity of the model loaded to produce different levels of s...
Airframe structural components experience coupled load–environment spectra that are currently not captured in traditional damage-tolerant management approaches. The effect of incorporating fatigue crack growth kinetics relevant to high-altitude flight environments into LEFM-based predictions progression for aluminum alloy 7075-T651 was quantitatively assessed a variety using AFGROW. results thi...
The paper studies the effect of strain-loading sequence on fatigue lifetime and fracture surface topographies in 7075-T651 aluminum alloy specimens. Fatigue tests were performed two ways: (i) constant-amplitude loading (ii) series variable amplitude with non-zero mean strain values. topography fractures was measured over their entire surfaces help an optical confocal measurement system. results...
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