Zobrazeno 1 - 10
of 41
pro vyhledávání: '"G. T. Hahn"'
The arrest properties of A533B steel are derived from measurements of the crack velocity and crack length at arrest using: (a) 140 by 400-mm duplex double-cantilever-beam (DCB) specimens with hardened and welded-on AISI 4340 steel starter sections, (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6182d1a1d1ca0fdb4db1618c6903ab2
https://doi.org/10.1520/stp28646s
https://doi.org/10.1520/stp28646s
New developments are described which offer a flexible procedure for measuring the fracture resistance values, K I m , K I D , and K I a which characterize the crack arrest behavior of materials. The procedure relies on a dynamically stiff, wedge-load
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec0aa1b1662f2fb1d842bfb2d3ca3fbf
https://doi.org/10.1520/stp27388s
https://doi.org/10.1520/stp27388s
Autor:
A. R. Rosenfield, G. T. Hahn, D. Broek, EF Rybicki, M.F. Kanninen, CW Marschall, R.B. Stonesifer
An elastic-plastic fracture mechanics methodology for treating two-dimensional stable crack growth and instability problems is described. The paper draws on "generation-phase" analyses in which the experimentally observedapplied-load (or displacement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c371523ea568abd6129345f2fd9a511
https://doi.org/10.1520/stp35828s
https://doi.org/10.1520/stp35828s
Publikováno v:
Threaded and Riveted Connections, Design Issues, Reliability, Stress Analysis, and Failure Prevention.
Three-dimensional finite element analysis of an elastic, double rivet-row, aluminum alloy lap joint with countersunk, aluminum and steel rivets, is presented. Relations between the connection compliance, rivet deformation, peak contact pressures and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf6ac1fbe17e78d13cf1f0efd537fc6
https://doi.org/10.1115/imece2001/de-25103
https://doi.org/10.1115/imece2001/de-25103
Publikováno v:
Recent Advances in Solids and Structures.
Three-dimensional finite element analyses of an elastic-plastic, single rivet-row, aluminum lap joint are presented and compared with previous results for linear elastic models. The calculations treat non-countersunk aluminum and steel rivets, 3 diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5df6a9c937d770273e714f663180d5c
https://doi.org/10.1115/imece1999-0614
https://doi.org/10.1115/imece1999-0614
Publikováno v:
Recent Advances in Solids and Structures.
Three-dimensional finite element analyses (FEA) of an elastic, single rivet-row, aluminum alloy lap joint are presented. The effects of rivet geometry (countersinking), rivet material and interfacial friction coefficient are examined. Interference an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7ba7c58254b79e8f20df94507a0f1ce
https://doi.org/10.1115/imece1999-0613
https://doi.org/10.1115/imece1999-0613
Publikováno v:
Journal of Applied Mechanics. 52:75-82
This paper presents finite element analyses of two-dimensional (plane strain), elastic-plastic, repeated, frictionless rolling contact. The analysis employs the elastic-perfectly plastic, cycle and strain-amplitude-independent material used in the Me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::925b51ef9a8a6f3a164158a4e6025cb8
https://doi.org/10.1115/1.3169030
https://doi.org/10.1115/1.3169030
Publikováno v:
Journal of Pressure Vessel Technology. 105:316-319
A nonlinear programming technique to estimate the parameters for a temperature normalized version of the Malvern equation is presented. The general conjugate gradient algorithm is used to minimize a least-squares function formulated from data for A53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d45242c8d1167a9fbe02b27219ea958
https://doi.org/10.1115/1.3264287
https://doi.org/10.1115/1.3264287
Autor:
G. T. Hahn, A. R. Rosenfield
Publikováno v:
Metallurgical Transactions A. 6:653-668
Crack extension in commercial aluminum alloys proceeds by the “ductile” or fibrous mode. The process involves the large, ~1 μm to ~10μm, Fe-, Si-, and Cu-bearing inclusions which break easily, and the growth of voids at the cracked particles. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffd1ba97e99271b69ed0ce7a9b4862d2
https://doi.org/10.1007/bf02672285
https://doi.org/10.1007/bf02672285
Publikováno v:
Engineering Fracture Mechanics. 7:583-591
This paper examines 3 theories that have been used to characterize the arrest capabilities of steels and structures: (1) The static analysis, arrest toughness ( K Ia ) theory; (2) The dynamically loaded/stationary crack toughness ( K Id ) theory, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a205ff33bdd9047ad74bbcc26557ca2e
https://doi.org/10.1016/0013-7944(75)90058-2
https://doi.org/10.1016/0013-7944(75)90058-2