Mechanical Engineering Publications Research Articles

On the circumferential shear stress around circular and elliptical holes

The circumferential shear stress along the boundary of a traction-free circular hole in an infinite isotropic solid under antiplane shear is twice the circumferential shear stress along the corresponding circle in an infinite solid without a hole, under the same loading conditions. This result, originally derived by Lin et al. (Yielding, damage, and failure of anisotropic solids. EGF Publication, Mechanical Engineering Publications, London, 1990) by invoking the extended circle theorem of Milne-Thomson, is rederived in this paper using the Fourier series analysis, in the spirit of the original Kienzler and Zhuping (J Appl Mech 54:110–114, 1987) derivation of the plane strain result for the hoop stress around the hole. The formula is also deduced by the complex potential method, without explicitly invoking the extended circle theorem. The ratio of the circumferential stresses along the boundary of a noncircular hole and the congruent curve in a solid without a hole depends on the loading. For an elliptical hole in an infinite solid under remote loading $${{\sigma_{xz}^{0}}}$$ , this ratio is constant and equal to 1 + b/a; under $${{\sigma_{yz}^{0}}}$$ it is equal to 1 + a/b, where a and b are the semi-axes of the ellipse. These constant values coincide with the values of the stress concentration factor in the two cases. If $${{\sigma_{xz}^{0}}}$$ and $${{\sigma_{yz}^{0}}}$$ are both applied, the stress ratio varies along the boundary of the ellipse; a closed form expression for this variation is determined. The portions of the elliptical boundary along which the strain energy density is increased or decreased by the creation of the hole are determined for different types of loading and different aspect ratios of the ellipse. An analytical expression for the stress concentration factor is then obtained for any orientation of the ellipse relative to the applied load.

Designing as Balance-Seeking Instead of Problem-Solving

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Joint replacement in the upper limb. MEP conference, April 1977.295 × 210 mm. Pp. 135. Illustrated. 1977. Bury St Edmunds: Mechanical Engineering Publications. £25.00

Journal Article Joint replacement in the upper limb. MEP conference, April 1977.295 × 210 mm. Pp. 135. Illustrated. 1977. Bury St Edmunds: Mechanical Engineering Publications. £25.00 Get access Joint replacement in the upper limb. MEP conference, April 1977. 295 × 210 mm. Pp. 135. Illustrated. 1977. Bury St Edmunds: Mechanical Engineering Publications. £25.00. Lipman Kessel Lipman Kessel Search for other works by this author on: Oxford Academic Google Scholar British Journal of Surgery, Volume 65, Issue 5, May 1978, Page 372, https://doi.org/10.1002/bjs.1800650522 Published: 07 December 2005

An improved 2D model for bonded composite joints

A growing number of structural applications and repairs require strong adhesively bonded joints between composite parts. The viability of the finite elements method (FEM) for the design and analysis of such joints has been shown by several researchers (Composites 13(1982) 29, mechanics and mechanisms of damage in composites and multi-materials, ESIS11, Mechanical Engineering Publications, London, 1991, Structural adhesive joints in engineering, Elsevier Applied science Publishers, Amsterdam, 1984). Most of the proposed plane stress models for adhesively bonded joints have traditionally relied on effective lamina properties for the composite adherends because one of the primary goals was the study of adhesive stresses and failure criteria (J. Adhes. 42 (1993)). Such work has also been usually carried out on mainframe computers. However, with the rapid developments in computing, commercial FE codes now exists for PC applications. These present new possibilities, namely the construction of models which are closer in their approximation to the structures they represent. Within this context, a new 2D plane stress approach has been developed which allows ply-by-ply modelling of composite adherends in a joint. It is a development of the traditional 2D plane stress model used by several authors such as Siener (Compos. Mater.: Testing Des. 10 (1992) 444) in investigating of composite repair joints. This paper reports the application of this new approach to the modelling of scarf joints between composite adherends under tensile loading. Various scarf angles were investigated and ultimate joint failure predicted. The results of the analysis were compared to the experimental results published by Adkins and Pipes (Proceedings of the Fourth Japan–US Conference on Composite Materials, 1988, pp. 845–854). The main aim of work was to develop a model which could provided more information than conventional models. The new approach offers the prospect of accurately modelling more realistic joints because, through the retention of the laminated nature of the composite adherends, scope now exists for the application of more physically based failure criteria. This work has shown that it is possible to model adhesively bonded composite joints using an improved 2D plane stress model which retains the laminated nature of the composite adherends. There was good agreement between the predicted failure loads and the experimental results for 3.0°, 6.2° and 9.2° scarf joints. These predictions are dependent on the type of failure criteria used. For the composite adherends, the maximum stress criterion faired better in predicting the 3.0° scarf joint strength.

An improved 2D model for bonded composite joints

A growing number of structural applications and repairs require strong adhesively bonded joints between composite parts. The viability of the finite elements method (FEM) for the design and analysis of such joints has been shown by several researchers (Composites 13(1982) 29, mechanics and mechanisms of damage in composites and multi-materials, ESIS11, Mechanical Engineering Publications, London, 1991, Structural adhesive joints in engineering, Elsevier Applied science Publishers, Amsterdam, 1984). Most of the proposed plane stress models for adhesively bonded joints have traditionally relied on effective lamina properties for the composite adherends because one of the primary goals was the study of adhesive stresses and failure criteria (J. Adhes. 42 (1993)). Such work has also been usually carried out on mainframe computers. However, with the rapid developments in computing, commercial FE codes now exists for PC applications. These present new possibilities, namely the construction of models which are closer in their approximation to the structures they represent. Within this context, a new 2D plane stress approach has been developed which allows ply-by-ply modelling of composite adherends in a joint. It is a development of the traditional 2D plane stress model used by several authors such as Siener (Compos. Mater.: Testing Des. 10 (1992) 444) in investigating of composite repair joints. This paper reports the application of this new approach to the modelling of scarf joints between composite adherends under tensile loading. Various scarf angles were investigated and ultimate joint failure predicted. The results of the analysis were compared to the experimental results published by Adkins and Pipes (Proceedings of the Fourth Japan–US Conference on Composite Materials, 1988, pp. 845–854). The main aim of work was to develop a model which could provided more information than conventional models. The new approach offers the prospect of accurately modelling more realistic joints because, through the retention of the laminated nature of the composite adherends, scope now exists for the application of more physically based failure criteria. This work has shown that it is possible to model adhesively bonded composite joints using an improved 2D plane stress model which retains the laminated nature of the composite adherends. There was good agreement between the predicted failure loads and the experimental results for 3.0°, 6.2° and 9.2° scarf joints. These predictions are dependent on the type of failure criteria used. For the composite adherends, the maximum stress criterion faired better in predicting the 3.0° scarf joint strength.

The effects of warm pre-stressing on cleavage fracture. Part 1: evaluation of experiments

An experimental programme has been performed to characterise the mechanical parameters and the fracture response of two steels, BS1501 and A533B. These are widely used in pressure vessel technology. The role of load history on improvements in cleavage fracture toughness has been investigated. Scatter within experimental cleavage toughness data has been described by using the model proposed by Wallin [Defect Assessment in Components, Fundamentals and Applications, ESIS/EGF 9, Mechanical Engineering Publications, London, 1991, p. 415] and combined with Chell [Int. J. Fract. 17 (1981) 61] model for warm pre-stressing (WPS) effect. The influence of parameters such as repeated cyclic pre-loading, sub-critical crack growth and specimen size on the WPS effect has also been noted. Finally the importance of the role of crack tip blunting and near tip residual stress field in describing the effect is discussed.

The effects of warm pre-stressing on cleavage fracture. Part 2: finite element analysis

Finite element analyses have been performed to simulate and verify the findings of the extensive experimental programme aimed to characterise the mechanical parameters and the cleavage fracture response following warm pre-stressing of two steels, BS1501 and A533B as detailed in part 1 [The Effects of Warm Pre-Stressing on Cleavage Fracture. Part 1: Evaluation of Experiments, companion paper]. A stress matching approach to predicting the fracture response of the as received, as well as the warm pre-stressed specimens is suggested. Using the stress distributions from the finite element analyses prediction of fracture after WPS is examined and results are compared to the experimental data and those obtained by combining the Chell [Int. J. Fract. 17 (1) (1981) 61; Proc. 4th Int. Conf. Pres. Ves. Technol., 1980, p. 117; Int. J. Pres. Ves. Pip. 23 (1986) 121] WPS model with the Wallin [Defect Assessment in Components, Fundamentals and Applications, ESIS/EGF 9, Mechanical Engineering Publications, London, 1991, p. 415] failure probability model described in part 1 [The Effects of Warm Pre-Stressing on Cleavage Fracture. Part 1: Evaluation of Experiments, companion paper]. The significance of residual stress field in enhancing of cleavage fracture toughness following warm pre-stressing has been highlighted. Using the appropriate finite element models, the role of sub-critical crack growth and crack tip blunting are also investigated.

Infra-red thermography for condition monitoring of composite wind turbine blades: feasibility studies using cyclic loading tests : Smith, G.M.; Clayton, B.R.; Dutton, A.G.; Irving, A.D. Wind Energy Conversion 1993. Proceedings of the 15th British Wind Energy Association Conference, York (United Kingdom), 6–8 Oct. 1993. pp. 365–371. Edited by K.F. Pitcher. Mechanical Engineering Publications Ltd. ISBN 0-85298-901-6

Infra-red thermography for condition monitoring of composite wind turbine blades: feasibility studies using cyclic loading tests : Smith, G.M.; Clayton, B.R.; Dutton, A.G.; Irving, A.D. Wind Energy Conversion 1993. Proceedings of the 15th British Wind Energy Association Conference, York (United Kingdom), 6–8 Oct. 1993. pp. 365–371. Edited by K.F. Pitcher. Mechanical Engineering Publications Ltd. ISBN 0-85298-901-6

Advanced Metallics, Metal-Matrix and Polymer-Matrix composites Flight Vehicle Materials, Structures and Dynamics Series, Vol. 2.. Edited by A.K. Noor and S.L. Venneri. American Society of Mechanical Engineers, 345 East 47th Street, United Engineering Center, New York, NY 10017, USA. 1994. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk IP32 6BW. 464pp. Illustrated. £83.

Advanced Metallics, Metal-Matrix and Polymer-Matrix composites Flight Vehicle Materials, Structures and Dynamics Series, Vol. 2.. Edited by A.K. Noor and S.L. Venneri. American Society of Mechanical Engineers, 345 East 47th Street, United Engineering Center, New York, NY 10017, USA. 1994. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk IP32 6BW. 464pp. Illustrated. £83. - Volume 99 Issue 990

New and Projected Aeronautical and Space Systems, Design Concepts and Loads. Edited by A.K. Noor and S.L. Venneri. American Society of Mechanical Engineers, 345 East 47th Street, United Engineering Center, New York, NY 10017, USA. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk IP32 6BW. 1994. 553pp. Illustrated. £83.

New and Projected Aeronautical and Space Systems, Design Concepts and Loads. Edited by A.K. Noor and S.L. Venneri. American Society of Mechanical Engineers, 345 East 47th Street, United Engineering Center, New York, NY 10017, USA. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk IP32 6BW. 1994. 553pp. Illustrated. £83. - Volume 99 Issue 987

Environmental aspects of nuclear power : ed ANON (IMechE), (Mechanical Engineering Publications for the Institution of Mechanical Engineers, London), ISBN (paperback) 0 85298 877 X, price £41.00, 1993, 86 pp

Environmental aspects of nuclear power : ed ANON (IMechE), (Mechanical Engineering Publications for the Institution of Mechanical Engineers, London), ISBN (paperback) 0 85298 877 X, price £41.00, 1993, 86 pp

Mechanical Seal Practice for Improved Performance (second edition), J.D Summers‐Smith (editor), Mechanical Engineering Publications Ltd., 1992. Number of pages: 215. Price: £38.00

Quality and Reliability Engineering InternationalVolume 11, Issue 3 p. 223-223 Book Review Mechanical Seal Practice for Improved Performance (second edition), J.D Summers-Smith (editor), Mechanical Engineering Publications Ltd., 1992. Number of pages: 215. Price: £38.00 Patrick O'Connor, Patrick O'ConnorSearch for more papers by this author Patrick O'Connor, Patrick O'ConnorSearch for more papers by this author First published: 1995 https://doi.org/10.1002/qre.4680110316AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume11, Issue31995Pages 223-223 RelatedInformation

The Reliability of Mechanical Systems (second edition), John Davidson and Cathy Hunsley (editors). Mechanical Engineering Publications Ltd., 1994. Number of pages: 163. Price: £49.00

The Reliability of Mechanical Systems (second edition), John Davidson and Cathy Hunsley (editors). Mechanical Engineering Publications Ltd., 1994. Number of pages: 163. Price: £49.00

FEM simulation of mixed-mode fatigue crack growth in metal forming tools. : Hansel, M., Engel, U. and Geiger, M. Mixed-Mode Fatigue and Fracture, Mechanical Engineering Publications Limited, Northgate Ave, Bury St Edmunds, Suffolk IP32 6BW, UK, 1993, pp 3–21

FEM simulation of mixed-mode fatigue crack growth in metal forming tools. : Hansel, M., Engel, U. and Geiger, M. Mixed-Mode Fatigue and Fracture, Mechanical Engineering Publications Limited, Northgate Ave, Bury St Edmunds, Suffolk IP32 6BW, UK, 1993, pp 3–21

Structural Dynamics and Aeroeiasticity Edited by A.K. Noor and S.L. Venneri American Society of Mechanical Engineers, 345 East 47th Street, United Engineering Center, New York, NY 10017, USA. 1993. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk. 511pp. Illustrated. £87.

Structural Dynamics and Aeroeiasticity Edited by A.K. Noor and S.L. Venneri American Society of Mechanical Engineers, 345 East 47th Street, United Engineering Center, New York, NY 10017, USA. 1993. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk. 511pp. Illustrated. £87. - Volume 98 Issue 979

Tribiological Materials and NDE Flight Vehicle Materials, Structures and Dynamics series Vol 4. Edited by R.L. Fusaro and J.D. Achenbach American Society of Mechanical Engineers, New York. 1992. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk. 426pp. lllustrated £77

Tribiological Materials and NDE Flight Vehicle Materials, Structures and Dynamics series Vol 4. Edited by R.L. Fusaro and J.D. Achenbach American Society of Mechanical Engineers, New York. 1992. Distributed by Mechanical Engineering Publications, Northgate Avenue, Bury St Edmunds, Suffolk. 426pp. lllustrated £77

Computer-Aided Production Engineering (Proceedings of 2nd International Conference). Edited by J. A. MCGEOUGH (Mechanical Engineering Publications, 1987.) [Pp. 381.] Price £5000 in UK.

Computer-Aided Production Engineering (Proceedings of 2nd International Conference). Edited by J. A. MCGEOUGH (Mechanical Engineering Publications, 1987.) [Pp. 381.] Price £5000 in UK.

Mechanical Engineering Publications

Serials: The Journal for the Serials Community has been digitised and can be accessed in full on this website. All content is freely available on an open-access basis. Serials was published between 1988 and 2011. In 2012, the journal was retitled and is now published as Insights: the UKSG journal.

A review of: “The Critical Analysis of the Design of Production Facilities.” By G. Thompson (Mechanical Engineering Publications, 1985.) [Pp. 63.] Price £750 (U.K.), £9.00 (elsewhere).

A review of: “<i>The Critical Analysis of the Design of Production Facilities.</i>” By G. Thompson (Mechanical Engineering Publications, 1985.) [Pp. 63.] Price £750 (U.K.), £9.00 (elsewhere).

A Review of: “Agricultural, industrial and municipal waste management: papers read at the conference held at the University of Warwick, 17-18 April 1985” Mechanical Engineering Publications Limited, London, 173 pp, £22

A Review of: “Agricultural, industrial and municipal waste management: papers read at the conference held at the University of Warwick, 17-18 April 1985” Mechanical Engineering Publications Limited, London, 173 pp, £22