Download or read book Evaluation of a Punch Shear Test Device written by Deno M. Pappas and published by . This book was released on 1990 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of a Punch Shear Test Device written by Deno M. Pappas and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Investigations written by and published by . This book was released on 1990 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Test Machine Compliance on the Measured Shear Punch Yield Stress as Predicted Using Finite Element Analysis written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In previous research involving the use of the shear punch test, it was assumed that the displacement of the punch tip was only slightly different than the crosshead displacement. The present work explores this assumption and its ramifications by simulating the shear punch test with finite element analysis (FEA). The simulations suggest that punch tip displacement is much less than previously assumed, and that for the test frames which have been used, crosshead displacement is over an order of magnitude greater than punch tip displacement. This difference in displacements is thought to be due to test machine and punch compliance, and a simple elasticity calculation of the compliance of the punch, the test machine, and a specimen gives a result which is in agreement with the FEA simulations. The effect of using punch tip displacement on the observed effective shear yield stress was evaluated using FEA simulated shear punch tests on several different metals. Yield was measured at several different offset shear strains with a 1.0% offset shear yield strength measurement providing the best correlation with 0.2% offset uniaxial yield strength. When using the 1.0% offset shear yield values, the previously observed material-to-material variability in the tensile-shear correlation all but disappeared. Based on this work, it appears that the material-to-material variations in prior correlations between uniaxial yield strength and shear yield strength is due to a combination of large test machine compliance and material-to-material differences in the work hardening exponent.

Download or read book Mathematical Modeling of Spontaneous Heating of a Coalbed written by John C. Edwards and published by . This book was released on 1990 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1992 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Test Machine Compliance on the Measured Shear Punch Yield Stress as Predicted Using Finite Element Analysis written by MB. Toloczko and published by . This book was released on 2002 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In previous research involving the use of shear punch test, it was understood that some compliance was present in the test frame and fixturing for a shear punch test, but it was assumed that this compliance would only affect the slope of the loading curve and not the perceived yield point on a shear punch test trace. The present work explores this assumption and its ramifications by simulating the shear punch test with finite element analysis (FEA). The simulations suggest that punch tip displacement is much less than previously assumed, and that for the test frames and fixtures which have been used, crosshead displacement is over an order of magnitude greater than punch tip displacement. This difference in displacements appears to be due to test machine and punch compliance, and a simple elasticity calculation of the compliance of the punch, the test machine, and a specimen gives a result which is in agreement with the FEA simulations. The effect of using punch tip displacement on the observed effective shear yield stress was evaluated using FEA-simulated shear punch tests on several different metals. Yield was measured at several different offset shear strains with a 1.0% offset shear yield strength measurement providing the best correlation with 0.2% offset uniaxial yield strength. When using the 1.0% offset shear yield values, the previously observed material-to-material variability in the tensile-shear correlation all but disappeared. Based on this work, it appears that the material-to-material variations in prior correlations between uniaxial yield strength and shear yield strength are largely due to an interplay between the large test system compliance and material-to-material differences in the work hardening behavior.

Download or read book New Publications written by United States. Bureau of Mines and published by . This book was released on 1982 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bureau of Mines Research written by United States. Bureau of Mines and published by . This book was released on 1992 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1993 with total page 1038 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Spray 2007 Global Coating Solutions Proceedings of the 2007 International Thermal Spray Conference written by Edited by Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, Ghislain Montavon and published by ASM International. This book was released on with total page 1246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook Of Biomaterials Evaluation written by Andreas F von Recum and published by CRC Press. This book was released on 1998-12-18 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook addresses the needs of those who are involved in inventing, developing, and testing implants and are concerned about the interactions between biomaterial and body tissue. The authors explore the physical, chemical, mechanical and regulatory considerations of synthetic materials used in surgical and implant procedures, and how these factors impact the latest developments and new approaches. This updated edition provides the biomaterials professional with necessary information on a range of issues, including bulk characterization, surface evaluations, toxicological evaluations, in vitro methods for safety evaluation, methods for evaluating materials in special applications, surgical considerations, systems implantology, soft and hard tissue history, regulatory aspects, and clinical trials.

Download or read book Miniature Shear Punch Test with On Line Acoustic Emission Monitoring for Assessment of Mechanical Properties written by SK. Hotta and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the use of acoustic emission monitoring during the shear punch tests to reduce the error involved in the estimation of mechanical property data, especially in the yield strength and strain hardening exponent. Tests have been carried out on a range of materials including AISI type 304 stainless steel containing various amounts of cold work. These data from the shear punch test are compared with tensile property measurements on identical materials. The on-line monitoring capability of acoustic emission technique has been successfully utilized for accurate evaluation of mechanical property data from the shear punch tests.

Download or read book Handbook of Plastics Testing and Failure Analysis written by Vishu Shah and published by John Wiley & Sons. This book was released on 2020-11-23 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in easy-to-read and -use format, this book provides a strong training resource and reference for product designers using plastics in their products – helping them identify, quantify, and confirm whether problems are related to product design or process. • Updates coverage of data analysis techniques and examples and expands coverage of failure analysis, key because of increased litigation related to product liability • Overviews plastic testing methods and the framework to investigate causes of plastic part failure • Provides a strong training resource and reference for product designers using plastics in their products • Features a video tour of a plastics testing labroatory on a companion website and has a separate manual of problems and solutions that are appropriate for college professors using the book as a class textbook

Download or read book Minerals Today written by and published by . This book was released on 1990 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: