Zobrazeno 1 - 10
of 78
pro vyhledávání: '"P. F. Packman"'
Autor:
P. F. Packman, Brian J. Love
Publikováno v:
Journal of Materials Science. 33:1359-1367
Adhesion experiments were performed using both morphological and surface chemical modifications to identify whether one is dominant in controlling copper–epoxy adhesion and durability. Surface preparation procedures included sanding and etching cop
Autor:
P. F. Packman, Brian J. Love
Publikováno v:
The Journal of Adhesion. 40:139-150
This paper summarizes a study on the effect of changes in surface chemistry on the peel strength of copper/polymer interfaces. Two different surface topographics were created and evaluated, one produced by cleaning and etching in sodium persulfate, t
Autor:
ALVARADO, JORGE WILFREDO VERA1 jvera@unitru.edu.pe, GARCÍA, LUIS FERNANDO CABALLERO1, NEIRA, MARTIN TABOADA1, FLORES, JHONNY WILFREDO VALVERDE2
Publikováno v:
Archives of Metallurgy & Materials. 2024, Vol. 69 Issue 2, p607-612. 6p.
Autor:
P. F. Packman, T. V. Baughn
Publikováno v:
Journal of Aircraft. 23:82-86
A finite element analysis was conducted to determine the structural integrity of a high-wing cable-tsupported ultralight aircraft. A simple, symmetrical, half-structure macromodel was analyzed and subjected to level flight loading and two-wheel-landi
Autor:
P. F. Packman, V. M. Gensheimer
Publikováno v:
Experimental Mechanics. 28:182-187
Knowledge of the magnitude and variation in the stress-intensity factor (SIF) around the perimeter of a surface crack is essential for an accurate analysis of a flawed component. SIFs for surface flaws of various semi-elliptical geometries were analy
Publikováno v:
The Journal of the Acoustical Society of America. 61:859-871
Design of pulse‐recording systems and evaluation criteria (method of analyzing the pulse signature) are investigated with the objective of defining optimal approaches to pulse signal analysis. A representative situation which this paper addresses i
Autor:
G. Marci, P. F. Packman
Publikováno v:
International Journal of Fracture. 16:133-153
Closure is investigated with an optical interference technique which measures the transverse displacement associated with a propagating fatigue crack. The results of this study require that “closure” be devided into two phenomena, each of which a
Publikováno v:
Experimental Mechanics. 18:233-239
A method is presented for the signature analysis of pulses by reconstructing in the time domain the shape of the pulse prior to its passing through the measurement system. This deconvolution technique is first evaluated using an idealized system and
Publikováno v:
Journal of Dynamic Systems, Measurement, and Control. 99:190-192
A relatively simple change in the treatment of the input function in numerical integration of high-order differential equations by Runge-Kutta methods provides substantial improvements in accuracy, particularly when the forcing function is in digitiz