Author: William Thor HardrathPublisher:
ISBN:
Category :
Languages : en
Pages : 74
Book Description
A Photoelastic Technique for the Determination of Stress Intensity Factors for Mode III Loading
Author: William Thor HardrathPublisher:
ISBN:
Category :
Languages : en
Pages : 74
Book Description
A Photoelastic Technique for the Determination of Stress Intensity Factors
Author: Mitchell Ira JollesPublisher:
ISBN:
Category : Photoelasticity
Languages : en
Pages : 182
Book Description
Experimental evaluation of stress concentration and intensity factors
Author: George C. SihPublisher: Springer Science & Business Media
ISBN: 9400983379
Category : Science
Languages : en
Pages : 407
Book Description
Experiments on fracture of materials are made for various purposes. Of primary importance are those through which criteria predicting material failure by deformation and/or fracture are investigated. Since the demands of engineering application always precede the development of theories, there is another kind of experiment where conditions under which a particular material can fail are simulated as closely as possible to the operational situation but in a simplified and standardized form. In this way, many of the parameters corresponding to fracture such as toughness, Charpy values, crack opening distance (COD), etc. are measured. Obviously, a sound knowledge of the physical theories governing material failure is necessary as the quantity of interest can seldom be evaluated in a direct manner. Critical stress intensity factors and critical energy release rates are examples. Standard test of materials should be distinguished from basic experi ments. They are performed to provide routine information on materials responding to certain conditions of loading or environment. The tension test with or without a crack is among one of the most widely used tests. Because they affect the results, with size and shape of the specimen, the rate of loading, temperature and crack configuration are standardized to enable comparison and reproducibility of results. The American Society for Testing Materials (ASTM) provides a great deal of information on recommended procedures and methods of testing. The objective is to standardize specifications for materials and definition of technical terms.
A Technique for the Determination of the Mode I Stress Intensity Factor Form Photoelastic Data with Applications to Three Dimensional Crack Problems
Author: Michael Andrew SchroedlPublisher:
ISBN:
Category : Strains and stresses
Languages : en
Pages : 252
Book Description
Photoelastic Determination of Mixed Mode Stress Intensity Factors
Author: Dallas Glen SmithPublisher:
ISBN:
Category : Photoelasticity
Languages : en
Pages : 29
Book Description
Using an idea proposed by G.R. Irwin, equations were developed for the maximum in-plane local shearing stress Tau sub m and average fringe loop inclination Theta sub m near the crack tip in terms of the Mode 1 and Mode 2 stress intensity factors K1 and K2 and polar coordinates r and Theta measured from the crack tip. A series of photoelastic experiments was performed on specimens exhibiting various edge crack configurations in finite strips under remote tensile loading. Measurements of Tau sub m and Theta sub m were made for progressively smaller fringes and used in the above mentioned equations to solve for K1 and K2 on a digital computer. Plots of apparent K versus r/a were made and extrapolated to the crack tip to yield the true values of K1 and K2. Results compared favorably with numerical results of Wilson. New results for 'angle' cracks were also obtained. (Author).
Scientific and Technical Aerospace Reports
Author: Experimental Analysis of Nano and Engineering Materials and Structures
Author: E.E. GdoutosPublisher: Springer Science & Business Media
ISBN: 1402062397
Category : Science
Languages : en
Pages : 1003
Book Description
This volume contains two-page abstracts of the 482 papers presented at the latest conference on the subject, in Alexandroupolis, Greece. The accompanying CD contains the full length papers. The abstracts of the fifteen plenary lectures are included at the beginning of the book. The remaining 467 abstracts are arranged in 23 tracks and 28 special symposia/sessions with 225 and 242 abstracts, respectively. The papers of the tracks have been contributed from open call, while the papers of the symposia/sessions have been solicited by the respective organizers.
Photoelasticity
Author: Masataka NisidaPublisher: Springer Science & Business Media
ISBN: 443168039X
Category : Science
Languages : en
Pages : 302
Book Description
Thirty-five papers were presented at the International Symposium on Photoelasticity, Tokyo, 1986, representing fifty-five authors. Eighteen of these papers were presented by Japanese photoelasticians and seventeen by leading foreign authorities from eleven countries (Austria, Canada, Czechoslovakia, F.R. of Germany, France, Greece, India, Switzerland, UK, USA and USSR) • This is the first symposium on photoelasticity of international scope held in Japan. The primary objectives of this symposium are to help bridge the gap between photoelastic researchers around the world, to promote mutual understanding and communications and to facilitate exchange of newly acquired knowledge in theories and techniques. In addition, it is important that these valuable results are communicated effectively to engineers who can apply them in practice in industry. The papers presented at this symposium cover all branches of photo elasticity in a broad sense, including, in addition to long estab lished photoelasticity, newly developed moire, interferometric, and holographic photoelasticity, caustics and speckle. Therefore, from an optical stress analysis pe~spective, this volume is the latest compre hensive collection of photoelastic expertises.
Author: C. Ruiz
Author: J. Visner