Author: Richard E. WhaleyPublisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 30
Book Description
Fatigue-crack Propagation in Aluminum-alloy Tension Panels
Author: Richard E. WhaleyPublisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 30
Book Description
Image Correlation for Shape, Motion and Deformation Measurements
Author: Michael A. SuttonPublisher: Springer Science & Business Media
ISBN: 038778747X
Category : Science
Languages : en
Pages : 332
Book Description
Image Correlation for Shape, Motion and Deformation Measurements provides a comprehensive overview of data extraction through image analysis. Readers will find and in-depth look into various single- and multi-camera models (2D-DIC and 3D-DIC), two- and three-dimensional computer vision, and volumetric digital image correlation (VDIC). Fundamentals of accurate image matching are described, along with presentations of both new methods for quantitative error estimates in correlation-based motion measurements, and the effect of out-of-plane motion on 2D measurements. Thorough appendices offer descriptions of continuum mechanics formulations, methods for local surface strain estimation and non-linear optimization, as well as terminology in statistics and probability. With equal treatment of computer vision fundamentals and techniques for practical applications, this volume is both a reference for academic and industry-based researchers and engineers, as well as a valuable companion text for appropriate vision-based educational offerings.
Crack Propagation
Author: United States. Federal Aviation Agency. Administrative Services Division. Library BranchPublisher:
ISBN:
Category : Metals
Languages : en
Pages : 66
Book Description
NASA Technical Note
Author: Stress-intensity Factor for a Cracked Sheet with Riveted and Uniformly Spaced Stringers
Author: Publisher:
ISBN:
Category : Fasteners
Languages : en
Pages : 66
Book Description
The stress-intensity factor and forces in the most highly loaded rivet and stringer were calculated for a cracked sheet with riveted and uniformly spaced stringers. Two symmetrical cases of crack location were considered - the case of a crack extending equally on both sides of a stringer and the case of a crack extending equally on both sides of a point midway between two stringers. The complete results are presented on design graphs for systematic variations of crack lengths much less than the stringer spacing. Also, the forces in the most highly loaded stringer and rivet asymptotically approach limiting values for increasing crack length. The stress-intensity factor and the limiting values of the stringer and rivet forces are smaller for stiffer or more closely spaced stringers or for more closely spaced rivets.
Monthly Catalog of United States Government Publications
Author: Aerospace Structural Metals Handbook
Author: Scientific and Technical Aerospace Reports
Author: Proceedings of the Air Force Conference on Fatigue and Fracture of Aircraft Structures and Materials
Author: Air Force Flight Dynamics Laboratory (U.S.)Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 924
Book Description
The document is comprised of papers presented at the Air Force Conference on Fatigue of Aircraft Structures and Materials, sponsored by the Air Force Flight Dynamics Laboratory (AFFDL) and the Air Force Materials Laboratory (AFML), Air Force Systems Command. The purpose of the Conference was to discuss technological advancements in fatigue and fracture theory. The Conference was comprised of ten technical sessions (including two panel discussions) entitled 'The Role of Materials in Structures'; 'Fundamentals I + II'; 'Criteria'; 'Fracture I + II'; 'Phenomena I + II'; 'Analysis'; 'Design and Service Experience'. A total of fifty-six technical papers were presented.
Author: