Stress Analysis Method for Clearance-Fit Joints with Bearing-Bypass Loads

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722804794
Total Pages : 32 pages
Book Rating : 4.8/5 (47 download)

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Book Synopsis Stress Analysis Method for Clearance-Fit Joints with Bearing-Bypass Loads by : National Aeronautics and Space Administration (NASA)

Download or read book Stress Analysis Method for Clearance-Fit Joints with Bearing-Bypass Loads written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-11 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within a multi-fastener joint, fastener holes may be subjected to the combined effects of bearing loads and loads that bypass the hole to be reacted elsewhere in the joint. The analysis of a joint subjected to search combined bearing and bypass loads is complicated by the usual clearance between the hole and the fastener. A simple analysis method for such clearance-fit joints subjected to bearing-bypass loading has been developed in the present study. It uses an inverse formulation with a linear elastic finite-element analysis. Conditions along the bolt-hole contact arc are specified by displacement constraint equations. The present method is simple to apply and can be implemented with most general purpose finite-element programs since it does not use complicated iterative-incremental procedures. The method was used to study the effects of bearing-bypass loading on bolt-hole contact angles and local stresses. In this study, a rigid, frictionless bolt was used with a plate having the properties of a quasi-isotropic graphite/epoxy laminate. Results showed that the contact angle as well as the peak stresses around the hole and their locations were strongly influenced by the ratio of bearing and bypass loads. For single contact, tension and compression bearing-bypass loading had opposite effects on the contact angle. For some compressive bearing-bypass loads, the hole tended to close on the fastener leading to dual contact. It was shown that dual contact reduces the stress concentration at the fastener and would, therefore, increase joint strength in compression. The results illustrate the general importance of accounting for bolt-hole clearance and contact to accurately compute local bolt-hole stresses for combined bearings and bypass loading. Naik, R. A. and Crews, J. H., Jr. Langley Research Center RTOP 505-63-01-05...

Stress Analysis Method for Clearance-fit Joints with Bearing-bypass Loads

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Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Stress Analysis Method for Clearance-fit Joints with Bearing-bypass Loads by :

Download or read book Stress Analysis Method for Clearance-fit Joints with Bearing-bypass Loads written by and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 896 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Bearing-bypass Loading on Bolted Composite Joints

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Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Bearing-bypass Loading on Bolted Composite Joints by :

Download or read book Bearing-bypass Loading on Bolted Composite Joints written by and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combined experimental and analytical study has been conducted to investigate the effects of simultaneous bearing and bypass loading on graphite/epoxy (T300/5208) laminate. Tests were conducted with a test machine that allows the bearing-bypass load ratio to be controlled while a single-fastener coupon is loaded to failure in either tension or compression. Test coupons consisted of 16-ply quasi-isotropic graphite/epoxy laminates with a centrally-located 6.35-mm bolt having a clearance fit. Onset-damage and ultimate strengths were determined for each test case. Next, a finite element stress analysis was conducted for each test case. The computed local stresses were used with appropriate failure criteria to analyze the observed failure modes and strengths. An unexpected interaction of the effect of the bypass and bearing loads was found for the onset of compression-reacted bearing damage. This interaction was caused by a decrease in the bolt-hole contact arc and a corresponding increase in the severity of the bearing loads. The amount of bolt-hole contact had a significant effect on local stresses and, thus, on the calculated damage-onset and ultimate strengths. An offset-compression failure mode was identified for laminate failure under compression bearing-bypass loading. This failure mode appears to be unique to compression bearing-bypass loading and, therefore, cannot be predicted from simple tests. (SDW).

Polymer Matrix Composites: Materials Usage, Design, and Analysis

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Publisher : SAE International
ISBN 13 : 0768078318
Total Pages : 955 pages
Book Rating : 4.7/5 (68 download)

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Book Synopsis Polymer Matrix Composites: Materials Usage, Design, and Analysis by : Composite Materials Handbook – 17 (CMH-17)

Download or read book Polymer Matrix Composites: Materials Usage, Design, and Analysis written by Composite Materials Handbook – 17 (CMH-17) and published by SAE International. This book was released on 2012-07-10 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third volume of this six-volume compendium provides methodologies and lessons learned for the design, analysis, manufacture, and field support of fiber-reinforced, polymeric-matrix composite structures. It also provides guidance on material and process specifications and procedures for using the data that is presented in Volume 2. The information provided is consistent with the guidance provided in Volume 1, and is an extensive compilation of the current knowledge and experiences of engineers and scientists from industry, government, and academia who are active in composites. The Composite Materials Handbook, referred to by industry groups as CMH-17, is a six-volume engineering reference tool that contains over 1,000 records of the latest test data for polymer matrix, metal matrix, ceramic matrix, and structural sandwich composites. CMH-17 provides information and guidance necessary to design and fabricate end items from composite materials. It includes properties of composite materials that meet specific data requirements as well as guidelines for design, analysis, material selection, manufacturing, quality control, and repair. The primary purpose of the handbook is to standardize engineering methodologies related to testing, data reduction, and reporting of property data for current and emerging composite materials. It is used by engineers worldwide in designing and fabricating products made from composite materials.

Monthly Catalogue, United States Public Documents

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Publisher :
ISBN 13 :
Total Pages : 1484 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Monthly Catalogue, United States Public Documents by :

Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Monthly Catalog of United States Government Publications

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ISBN 13 :
Total Pages : 1482 pages
Book Rating : 4.:/5 (891 download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 1482 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Composite Materials Handbook-MIL 17, Volume III

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Publisher : Routledge
ISBN 13 : 1351459236
Total Pages : 376 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Composite Materials Handbook-MIL 17, Volume III by : UsDeptOfDefense

Download or read book Composite Materials Handbook-MIL 17, Volume III written by UsDeptOfDefense and published by Routledge. This book was released on 2018-05-04 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standardization handbook has been developed and is being maintained as a joint effort of the Department of Defense and the Federal Aviation Administration. It provides guidelines and material properties for polymer (organic) and metal matrix composite materials. This handbook aims to provide a standard source of statistically-based mechanical property data, procedures, and overall materials guidelines for characterization of composite material systems. This volume provides methodologies and lessons learned for the design, manufacture, and analysis of composite structures and for utilization of the material data provided in Volume II consistent with the guidance provided in Volume I. It covers processes and effects of variability; quality control of production materials; design and analysis; structural behavior of joints and reliability; thick section composites; and supportability.

Engineered Materials Abstracts

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ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Engineered Materials Abstracts by :

Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1992-03 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Composite Materials

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Publisher : ASTM International
ISBN 13 : 0803112874
Total Pages : 589 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Composite Materials by : Samuel P. Garbo

Download or read book Composite Materials written by Samuel P. Garbo and published by ASTM International. This book was released on 1990 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Papers from the symposium held April 1988 in Sparks, Nevada. The focus is on significant advances in the area of damage tolerance and durability of composite structures. Twenty-seven contributions address delamination initiation and growth analysis, damage mechanisms and test procedures, and other general interest design and analysis topics. Annotation copyrighted by Book News, Inc., Portland, OR.

A Collection of Technical Papers

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ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis A Collection of Technical Papers by :

Download or read book A Collection of Technical Papers written by and published by . This book was released on 1989 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 898 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1994 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recent Advances in Structural Joints and Repairs for Composite Materials

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Publisher : Springer Science & Business Media
ISBN 13 : 9401703299
Total Pages : 262 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Recent Advances in Structural Joints and Repairs for Composite Materials by : Liyong Tong

Download or read book Recent Advances in Structural Joints and Repairs for Composite Materials written by Liyong Tong and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Joints in components or structures incur a weight penalty, are a source of failure, cause manufacturing problems, and are unfortunately unavoidable in most structures ranging from aircraft, and spacecraft to ships and offshore platforms, to automobiles, bridges and buildings. An important requirement for the complete design of practical structures is the development of attachment methods and joint designs. Recent Advances in Structural Joints and Repairs for Composite Materials provides an up-to-date account of adhesively bonded and mechanically fastened joints and repairs. Audience: This book will prove to be an informative resource for all engineers and researchers involved with joining and repair of composite structures.

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 1286 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1989 with total page 1286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ply-level Failure Analysis of a Graphite/epoxy Laminate Under Bearing-bypass Loading

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Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Ply-level Failure Analysis of a Graphite/epoxy Laminate Under Bearing-bypass Loading by :

Download or read book Ply-level Failure Analysis of a Graphite/epoxy Laminate Under Bearing-bypass Loading written by and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied Mechanics Reviews

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ISBN 13 :
Total Pages : 864 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1985 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aerospace America

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ISBN 13 :
Total Pages : 730 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Aerospace America by :

Download or read book Aerospace America written by and published by . This book was released on 1989 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: