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 249 for “"Residual stresses"”.
-
Residual stresses due to grinding
An analytic treatment of stresses and temperatures generated during grinding is presented from an elasticity approach. A two-dimensional heat conduction model employs an energy partition scheme in the grinding zone to produce realistic temperature profiles. By using the basic equations of …
-
Minimizing residual stresses in molded parts
Thesis. (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1987.
-
Estimation of residual stresses in marine structures
… literature and that the numerically obtained residual stress distribution is compared and agreed by both ANSYS and VrWeld software. After that, a simple method for predicting butt-welding residual stresses based on force and moment equilibrium was derived in this section. The results …
-
Modelling of Residual Stresses of Blood Vessels
… arterial walls in blood vessels is affected by residual stresses and stresses due to blood pressure. However, residual stresses are still not reliably determined. For this reason, a suitable incorporation of these stresses is required in order to establish the wall stress as a reliable …
-
RESIDUAL STRESSES IN GROUND AND IN PEENED SURFACE
Residual stresses have long been of great concern to manufacturing and design engineers, due to their major effect on the service life of most enginee ring components and structures. These stresses are induced by finishing processes, and they can be either benef icial t o the life of me tal …
-
Residual stresses in weldments in high-strength steels.
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Ocean Engineering.
-
Residual stresses and properties of layered and graded coatings
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1999.
-
Residual stresses and web fracture in roller-straightened rail
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
-
Comparative analyses of residual stresses in target sub-system materials
Recent approaches to residual stress measurements in transmutation target structural materials using destructive and nondestructive techniques have been investigated in this research project. A major emphasis has been placed on the use of the Neutron Diffraction (ND) technique to determine the …
-
Applied modelling techniques for welding induced distortions and residual stresses
Prediction of residual stresses and distortion induced by welding is relevant to many industries involved with the manufacture and assembly of thin plate structures. The ability to predict these unwanted effects on such structures subjected to welding processes is important to minimise costs …
-
Investigation of Residual Stresses in Shape Memory Alloy (Sma) Composites
… structural-level thermal and transformational stresses for nitinol composites induced by nitinol wires embedded in a host matrix. A series of warpage experiments were conducted on nitinol composite beams during heating cycles to provide experimental validation of model predictions and to assess …
-
Modeling of the in-Plane Biaxial Residual Stresses From Machining
… to demonstrate the effects of machining-induced residual stress on part warpage. The experimentation indicates the strong influence of machining-induced residual stresses on component geometry. Finite element solution techniques are utilized to predict the part warpage resulting from the …
-
Predicted Effects of Residual Stresses on Butt Weld Fatigue Life
Made available in DSpace on 2014-12-14T16:00:37Z (GMT). No. of bitstreams: 1 7811214.pdf: 3487716 bytes, checksum: 0c546889a9041bc640a3abb62ae421ed (MD5) Previous issue date: 1978
-
Residual stresses and mechanical properties of thin film photovoltaic materials
The mean and gradient residual stresses and the failure behavior of individual layers in inorganic thin film photovoltaics were investigated. The thin film photovoltaics consisted of an amorphous silicon (Si) p-n junction diode, a zinc oxide (ZnO) Transparent Conductive Oxide (TCO) layer (each 1μm …
-
Control of distortion and residual stresses in girth welded pipes
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1986.
-
Analytical techniques for determining temperatures, thermal strains, and residual stresses
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1981.
-
Analysis of residual stresses in laser trimmed alumina microelectronic substrates
… of stress was performed using x-ray diffraction residual stress analysis and dynamic strain measurements using strain gages before and after laser trimming. X-ray diffraction measurements were carried out in both the longitudinal and transverse directions on the front and back sides of the …
-
Analysis and Characterization of Residual Stresses in Pipe and Vessel Welds
<p>This research sought to establish residual stress distribution characteristics in typical pipe and vessel welds by carrying out a comprehensive parametric study using an advanced sequentially coupled thermo-mechanical finite element procedure. The parametric study covered vessel and pipe …
-
Effect of dynamic thermal boundaries on residual stresses in injection molding
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
-
Residual stresses and deflections in complex shapes formed by laser bending
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1986.
Page 1 of 13