A Fracture Mechanics Approach For Designing Adhesively Bonded Joints
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A Fracture Mechanics Approach for Designing Adhesively Bonded Joints
| Author | : WS. Johnson |
| Publisher | : |
| Total Pages | : 11 |
| Release | : 1985 |
| Genre | : Adhesive joints |
| ISBN | : |
An analytical and experimental investigation was undertaken to determine if the adhesive debond initiation stress could be predicted for arbitrary joint geometries. The analysis was based upon a threshold total strain-energy-release rate (Gth) concept. Two bonded systems were tested: T300/5208 graphite/epoxy adherends bonded with either EC-3445 or FM-300 adhesive. The Gth for each adhesive was determined from cracked-lap-shear (CLS) specimens by debond initiation tests. Finite-element analyses of various tapered CLS specimen geometries predicted the specimen stress at which the total strain-energy-release rate (GT) equaled Gth at the joint tip. Experiments verified the predictions. The approach described herein predicts the maximum stress at which an adhesive joint can be cycled yet not debond. Total strain-energy-release rate appeared to be the driving parameter for cyclic debonding and debond initiation in structural adhesives, and debond initiation and growth were found to occur with virtually no peel stress present.
Adhesively Bonded Joints
| Author | : W. Steven Johnson |
| Publisher | : ASTM International |
| Total Pages | : 317 |
| Release | : 1988 |
| Genre | : Adhesive joints |
| ISBN | : 0803109938 |
Fatigue and Fracture of Adhesively-Bonded Composite Joints
| Author | : Anastasios P. Vassilopoulos |
| Publisher | : Elsevier |
| Total Pages | : 553 |
| Release | : 2014-10-21 |
| Genre | : Technology & Engineering |
| ISBN | : 0857098128 |
It is commonly accepted that the majority of engineering failures happen due to fatigue or fracture phenomena. Adhesive bonding is a prevailing joining technique, widely used for critical connections in composite structures. However, the lack of knowledge regarding fatigue and fracture behaviour, and the shortage of tools for credible fatigue design, hinders the potential benefits of adhesively bonded joints. The demand for reliable and safe structures necessitates deep knowledge in this area in order to avoid catastrophic structural failures. This book reviews recent research in the field of fatigue and fracture of adhesively-bonded composite joints. The first part of the book discusses the experimental investigation of the reliability of adhesively-bonded composite joints, current research on understanding damage mechanisms, fatigue and fracture, durability and ageing as well as implications for design. The second part of the book covers the modelling of bond performance and failure mechanisms in different loading conditions. A detailed reference work for researchers in aerospace and engineering Expert coverage of different adhesively bonded composite joint structures An overview of joint failure
Adhesive Joints
| Author | : K.L. Mittal |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 912 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 1461327490 |
This volume documents the proceedings of the International Symposium on Adhesive Joints: Formation, Characteristics and Testing held under the auspices of the Division of Polymer Mater ials:Science and Engineering of the American Chemical Society in Kansas City, MO, September 12-17, 1982. There is a myriad of applications (ranging from aerospace to surgery) where adhesives are used to join different materials, and concomitantly the understanding of the behavior of adhesive joints becomes very important. There are many factors which can influence the behavior of adhesive joints, e.g., substrate preparation, in terfacial aspects, joint design, mode of stress, external environ ment, etc., and in order to understand the joint behavior in a holistic manner, one must take due cognizance of all these germane factors. So this symposium was planned to address not only how to make acceptable bonds but their characterization, durability and testing were also accorded due consideration.
The Fracture Mechanics Approach to the Assessment of Adhesive Joint Performance in Bonded Wood Products
| Author | : Robert Oboigbaotor Ebewele |
| Publisher | : |
| Total Pages | : 420 |
| Release | : 1980 |
| Genre | : Adhesive joints |
| ISBN | : |
Structural Adhesive Joints
| Author | : K. L. Mittal |
| Publisher | : John Wiley & Sons |
| Total Pages | : 352 |
| Release | : 2020-09-01 |
| Genre | : Technology & Engineering |
| ISBN | : 1119736439 |
This timely book on structural adhesives joints showcases all the pertinent topics and will be of immense value to scientists and engineers in many industries. Most structures are comprised of a number of individual parts or components which have to be connected to form a system with integral load transmission path. The structural adhesive bonding represents one of the most enabling technologies to fabricate most complex structural configurations involving advanced materials (e.g. composites) for load-bearing applications. Quite recently there has been a lot of activity in harnessing nanotechnology (use of nanomaterials) in ameliorating the existing or devising better performing structural adhesives. The 10 chapters by subject matter experts look at the following issues: Surface preparation for structural adhesive joints (SAJ) Use of nanoparticles in enhancing performance of SAJ Optimization of SAJ Durability aspects of SAJ Debonding of SAJ Fracture mechanics of SAJ Failure analysis of SAJ Damage behavior in functionally graded SAJ Impact, shock and vibration characteristics of composites for SAJ Delamination arrest methods in SAJ
Modeling of Adhesively Bonded Joints
| Author | : Lucas F. M. da Silva |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 335 |
| Release | : 2008-10-14 |
| Genre | : Science |
| ISBN | : 354079056X |
A lot of recent developments have been made about adhesively bonded joints modeling using various methods of analysis. The increasing application of adhesives in industry is partly due to the increased sophistication and reliability of adhesive joints modeling. The book proposed intends to provide the designer with the most advanced stress analyses techniques in adhesive joints to reinforce the use of this promising bonding technique.
Strength Prediction of Adhesively-Bonded Joints
| Author | : Raul D. S. G. Campilho |
| Publisher | : CRC Press |
| Total Pages | : 670 |
| Release | : 2017-05-25 |
| Genre | : Science |
| ISBN | : 1315353687 |
Adhesively-bonded joints provide many advantages over conventional mechanical fasteners and are increasingly receiving attention as an alternative to mechanical joints in engineering applications. The traditional fasteners usually result in the cutting of fibers and hence the introduction of stress concentrations, both of which reduce structural integrity. By contrast, bonded joints are more continuous and have potential advantages of strength-to-weight ratio, design flexibility, and ease of fabrication. This book provides an overview of available analytical methods as well as numerical methods.
