Download or read book Plastic Stress strain Relations Under Constant and Variable Biaxial Tension Stress Ratios for a 14S T4 Aluminum Alloy for National Advisory Committee for Aeronautics Contract NA3 5791 written by Joseph Marin and published by . This book was released on 1951 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plastic Stress strain Relations for Combined Tension and Compression written by Joseph Marin and published by . This book was released on 1952 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plastic stress-strain relations for biaxial tension-compression principal stresses were determined for a 14S-T4 aluminum alloy. Constant-stress-ratio tests provided control data and information of the material. Variable-stress-strain ratio tests were made to determine whether the deformation or flow theory agrees better with actual plastic stress-strain relations and special tests were conducted to check the validity of various assumptions made in these theories.

Download or read book Plastic Stress strain Relations for 75S T Aluminum Alloy Subjected to Biaxial Tensile Stresses for the National Advisory Committee for Aeronautics Contract NAW 5791 written by Joseph Marin and published by . This book was released on 1950 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subject Catalog written by Library of Congress and published by . This book was released on 1950 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Catalogs written by Library of Congress and published by . This book was released on 1955 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The National Union Catalog Pre 1956 Imprints written by and published by . This book was released on 1974 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plastic Stress strain Relations for 75S T6 Aluminum Alloy Subjected to Biaxial Tensile Stresses written by Joseph Marin and published by . This book was released on 1951 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constant-stress-ratio tests, variable-stress-ratio tests, and special tests were made on a tubular 75S-T6 aluminum alloy specimen. The stresses used were essentially biaxial and tensile stresses. The constant-stress-ratio test results gave control data and showed the influence of biaxial stresses on the yield, fraction, and ultimate strength of the material. It is possible to determine from certain variable-stress-ratio tests whether there is any significant difference between the flow and deformation type of theory. The special tests checked specific assumptions made in the theories of plastic flow.

Download or read book Library of Congress Catalog written by Library of Congress and published by . This book was released on 1950 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cumulative list of works represented by Library of Congress printed cards.

Download or read book Biaxial Plastic Stress strain Relations for 24S T Aluminium Alloy written by Joseph Marin and published by . This book was released on 1948 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biaxial Plastic Stress strain Relations for 24S T Aluminum Alloy written by Joseph Marin and published by . This book was released on 1948 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data were interpreted by a generalized St. Venant theory in an attempt to predict the biaxial stress-strain relations in terms of the uniaxial tensile stress-strain relations. The stress-strain relations, as predicted for combined stresses by this theory, agree approximately with the test results.

Download or read book Local Plastic Stresses in Sheet Aluminum alloy Specimens with Stress concentration Factor of 2 Under Constant amplitude Loading written by John H. Crews and published by . This book was released on 1965 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyclic plastic stresses at notch roots in specimens under constant-amplitude repeated tension and reversed loading have been studied experimentally. The applied loads were cycled in edge-notched 2024-T3 aluminum-alloy sheet specimens, which had a stress-concentration factor of 2, until local stress conditions stabilized. Determination of local stress histories was made by recording local strain histories during cycling and reproducing these histories in simple unnotched specimens. The fatigue lives for the notched specimens were estimated from the stabilized local stresses and fatigue data for the unnotched specimens. These estimations compared favorably with fatigue-life data for the notch configuration tested. In addition, an expression for calculating local first-cycle plastic stresses is presented. An acceptable correlation is shown between predicted stresses and experimental data within the scope of the investigation.

Download or read book Plastic Stress strain Relations for 75S T6 Aluminum Alloy Subjected to Biaxial Stresses written by Joseph Marin and published by . This book was released on 1951 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Strengths of 14S T4 Aluminum Alloy Subjected to Biaxial Tensile Stresses written by Joseph Marin and published by . This book was released on 1952 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation was to determine the influence of biaxial tensile stresses on the fatigue strength of a 14S-T4 aluminum alloy when subjected to the various ratios of biaxial stresses. The effect upon the fatigue strength of varying the ratios of biaxial stresses was studied. The biaxial fatigue stresses were produced by applying simultaneously a pulsating internal pressure and a fluctuating axial tensile load to a thin-walled tubular specimen. The maximum and minimum values of the longitudinal and circumferential stresses were kept in phase by adjusting the testing machine. The fatigue strengths and S-N diagrams were obtained up to about 10,000,000 cycles for four principal stress ratios.

Download or read book EXPERIMENTS CONCERNING TYHE YELD SURFACE AND THE ASSUMPTION OF LINEARITY IN THE PLASTIC STRESS STRAIN RELATIONS written by P.M.NAGHDI and published by . This book was released on 1954 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Interpretation of Biaxial tension Experiments Involving Constant Stress Ratios written by S. B. Batdorf and published by . This book was released on 1950 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The slip theory of plasticity is applied to the problem of calculating the strains associated with biaxial tension for the case of constant stress ratios and is found to be in better agreement with experiment than the octahedral-shear and maximum-shear theories usually employed to analyze such data.

Download or read book A Study of Elastic and Plastic Stress Concentration Factors Due to Notches and Fillets in Flat Plates written by Herbert F. Hardrath and published by . This book was released on 1951 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six large 24S-T3 aluminum-alloy-sheet specimens containing various notches or fillets were tested in tension to determine their stress concentration factors in the elastic and plastic ranges. The elastic stress concentration factors were found to be slightly higher than those predicted by other methods. A generalization of a relation presented by Stowell gave good agreement with the plastic stress concentration factors as they decreased with increasing plastic strain.