• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 415
  • 147
  • 94
  • 32
  • 23
  • 10
  • 7
  • 7
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 4
  • Tagged with
  • 1398
  • 1398
  • 465
  • 444
  • 436
  • 435
  • 434
  • 195
  • 189
  • 171
  • 162
  • 160
  • 152
  • 149
  • 143
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

A residual strength approach for the fatigue analysis of welded components / Abir Ghosh.

Ghosh, Abir January 1996 (has links)
Bibliography: leaves 240-257. / xvii, 274 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The main objective of this research is to develop a fundamentally new fatigue design and assessment procedure which can be used to predict the variation in crack size, strength and inspection periods as well as endurances. Basic fracture mechanics and fatigue procedures are used to illustrate this new technique. / Thesis (Ph.D.)--University of Adelaide, Depts. of Civil & Environmental Engineering and Mechanical Engineering, 1997?
202

Aspects of instrumented indentation with applications to thermal barrier coatings

Yan, Jin. January 2007 (has links)
Thesis (Ph.D.)--University of Delaware, 2007. / Principal faculty advisor: Anette M. Karlsson, Dept. of Mechanical Engineering. Includes bibliographical references.
203

Computing Upper and Lower Bounds for the J-Integral in Two-Dimensional Linear Elasticity

Xuan, Z.C., Lee, Kwok Hong, Patera, Anthony T., Peraire, Jaime 01 1900 (has links)
We present an a-posteriori method for computing rigorous upper and lower bounds of the J-integral in two dimensional linear elasticity. The J-integral, which is typically expressed as a contour integral, is recast as a surface integral which yields a quadratic continuous functional of the displacement. By expanding the quadratic output about an approximate finite element solution, the output is expressed as a known computable quantity plus linear and quadratic functionals of the solution error. The quadratic component is bounded by the energy norm of the error scaled by a continuity constant, which is determined explicitly. The linear component is expressed as an inner product of the errors in the displacement and in a computed adjoint solution, and bounded using standard a-posteriori error estimation techniques. The method is illustrated with two fracture problems in plane strain elasticity. / Singapore-MIT Alliance (SMA)
204

Fracture Properties of Concrete Containing Expanded Polystyrene Aggregate Replacement

Trussoni, Matthew 07 August 2009 (has links)
Fracture mechanics is applied to study the behavior of concrete containing expanded polystyrene (EPS) aggregate replacement. The EPS replaces a portion of the normal weight fine aggregate. Previous research has shown EPS aggregate replacement changes the failure mode in compression from a typical instantaneous failure, as in normal weight concrete (NWC), to a more gradual dissipation of load carrying capacity. This behavior is investigated through the use of fracture mechanics. The fracture energy, critical stress intensity factor and characteristic length of EPS concrete, NWC and fiber reinforced concrete (FRC) are experimentally determined. The two types of tests used to study these properties are the three point bending test recommended by the RILEM technical committee and a wedge splitting test developed recently. The conclusions derived from this research demonstrate that EPS aggregate replacement increases the size of the fracture process zone in front of the crack tip. This increase in size changes the failure mode of concrete allowing it to maintain load after reaching peak load and absorb more energy during the fracture process.
205

Behaviour of Rock Fractures under Grout Pressure Loadings : Basic Mechanisms and Special Cases

Gothäll, Rikard January 2009 (has links)
QC 20100714
206

Nonlinear thermal stress/fracture analysis of multilayer structures using enriched finite elements /

Yildirim, Bora, January 2000 (has links)
Thesis (Ph. D.)--Lehigh University, 2000. / Includes vita. Includes bibliographical references (leaves 202-206).
207

Two and three-dimensional finite element analysis of plasticity-induced fatigue crack closure a comprehensive parametric study /

Solanki, Kiran N. January 2002 (has links)
Thesis (M.S.)--Mississippi State University. Department of Mechanical Engineering. / Title from title screen. Includes bibliographical references.
208

Experimental study on the effect of misfit and mismatch of ship plating welds /

Bebermeyer, Robert E., January 1900 (has links)
Thesis (Naval Engineers Degree and M.S. in Mechanical Engineering)--Massachusetts Institute of Technology, 2002. / Includes bibliographical references (leaf 47). Also available online.
209

The elastic and elasto-plastic fracture analysis by method of weighted residuals and elasto-viscoplasticity /

Wang, Yuanhan. January 1988 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1989.
210

A generalized beam on elastic foundation model for fracture studies /

Liu, Tak-wing. January 1988 (has links)
Thesis (M. Phil.)--University o9f Hong Kong, 1989.

Page generated in 0.0884 seconds