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Emeritus Professor Chris Calladine

Emeritus Professor  Chris Calladine

Professor of Structural Mechanics

Cambridge University
Engineering Department
Trumpington Street
Cambridge CB2 1PZ

Office Phone: +44 1223 764099

Biography:

He was on the teaching staff of the Department from 1960 until 2002. He is an Emeritus Fellow of Peterhouse. His main interests are in buckling and vibration of thin-shell Structures, and in bistability, on a microscopic scale, in protein molecules and assemblies

Research Interests

  • Thin-shell structures in general; and their buckling and vibrational behaviour in particular.
  • Irreversible thermal and other buckling phenomena in submarine pipelines.
  • Biological micro-scale mechanics : liposomes, bacterial flagella, and sequence-specific interaction between DNA and protein, and detailed bi-stabilities in interfaces between alpha-helices.

Teaching

At present he is teaching part of a second-year, Easter term course in Biological and Medical Engineering: 4 lectures on biological structures at the molecular scale.

 

 

Key Publications

1. C.R. Calladine, 'The steady creep of shells ; a method of analysis'. Proc. Symp. Nuclear Reactors and Pressure Vessels, Glasgow (Butterworths), 411-431 (1960).

2. C.R. Calladine and D.C. Drucker, 'Nesting surfaces of constant rate of energy dissipation in creep'. Quart. Appl. Math., 20, pp 79-84 (1962).

3. C.R. Calladine and D.C. Drucker, 'A bound method for creep analysis of structures : direct use of solutions in elasticity and plasticity'. J. Mech. Eng. Science, I. Mech. E., 4, 1-11(1962).

4. C.R. Calladine and J. Heyman, 'The mechanics of the game of croquet '. Engineering, 193, 861.863 (1962).

5. C.R. Calladine, 'On the creep of a wrinkle'. Creep in Structures Colloquium, Stanford (J. Springer) 245-271 (1960).

6. C.R. Calladine, 'The effect of cross-section shape on the creep buckling behaviour of columns'. Int. J. Mech. Sci., 4, 387-407 (1962).

7. C.R. Calladine, 'A note on the bending of beams made of non-linear material'. J. Roy. Aero. Soc., 67, 124-125 (1963).

8. C.R. Calladine, 'Stress concentrations in steady creep: Interpolation between solutions in elasticity and plasticity'. Proc. I. Mech. Engrs, 178 (3A), 2-59 - 2.68 (1963).

9. C.R. Calladine, 'The Yielding of Clay'. Géotechnique, London, 13, 250-255 (1963).

10. C.R. Calladine, 'Steady creep in a cylindrical shell: close upper and lower bound solutions for all values of the creep index'. Proc. World Conference on Shell Structure, N.A.S., 603-618 (1964).

11. C.R. Calladine, 'A rapid method for estimating the greatest stress in a structure subject to creep'. Proc. I. Mech. E., 178 (3L), 198-206 (1964).

12. C.R. Calladine, 'Edge-load response of a thin cylindrical shell in creep'. Non-classical shell problems, North Holland Publishing Co., 384-406 (1964).

13. C.R. Calladine, 'Stress concentration in nonlinear creep of a simple shell'. J. Appl. Mech., 33, 322-326 (1966).

14. C.R. Calladine, 'Design of nozzles in spherical pressure vessels'. The Engineer, London, 219, 386-387 (1965).

15. C.R. Calladine, 'On the design of reinforcement for openings and nozzles in thin spherical pressure vessels'. J. Mech. Eng. Sci., 8, 1-14 (1966).

16. C.R. Calladine, 'Some calculations to assess the effect of the stress-strain rate relationship on creep in the neighbourhood of an opening in a pressurised thin spherical shell'. J. Mech. Eng. Sci., 9, 198-210 (1967).

17. C.R. Calladine, 'Simple ideas in the large-deflection plastic theory of plates and slabs'. Engineering Plasticity, ed. J. Heyman and F.A. Leckie, Cambridge University Press, 93-127 (1968).

18. C.R. Calladine, 'Time-scales for redistribution of stress in creep of structures'. Proc. Roy. Soc. (A) 309, 363-375 (1969).

19. C.R. Calladine, Engineering Plasticity, Pergamon Press, 1969.

20. C.R. Calladine, 'On the teaching of inelastic column theory', Bull. Mech. Eng. Educ., 8, 239-252 (1969).

21. S. Bunyaraksh and C.R. Calladine, "A study of the fundamentals of wrinkling in fuel element cans". U.K. Atomic Energy Authority, TRG Report 1499 (S/X) 1969.

22. C.R. Calladine and I.W. Goodall, 'Plastic behaviour of thin cylindrical pressure vessels with circular cutouts and radial branches', J. Mech. Eng. Sci. (I.Mech.E.) 11, 351-363 (1969).

23. C.R. Calladine, 'Lower-bound analysis of symmetrically loaded shells of revolution'. Proc. Conf. on Pressure Vessel Technology, A.S.M.E., Part 1, 335-343 (1969).

24. A.J. Morris and C.R. Calladine, 'The local strength of a spherical shell loaded radially through a rigid boss', Proc. Conf. on Pressure Vessel Technology, A.S.M.E., Part 1 35-44 (1969).

25. C.R. Calladine and J.N. Barber 'Simple experiments on self-weight buckling of open cylindrical shells'. J. Appl. Mech., 37, 1150-1151 (1970).

26. C.R. Calladine and O.D. Sherby, 'Conversion factors for stress and pressure', Metal Progress, 99, 86-87 (1971).

27. A.J. Morris and C.R. Calladine, 'Simple upper-bound calculations for the indentation of cylindrical shells'. Int. J. Mech. Sci. 13, 331-343 (1971).

28. C.R. Calladine, 'Creep in torispherical pressure-vessel heads', Creep in Structures, ed. J. Hult, Springer-Verlag, 247-268 (1972).

29. C.R. Calladine, 'A microstructural view of the mechanical properties of saturated clay', Géotechnique, 21, 391-415 (1971).

30. C.R. Calladine, 'Structural consequences of small imperfections in elastic thin shells of revolution'. Int. J. Solids Structures, 8, 679-697 (1972).

31. C.R. Calladine, 'A new finite-element method for analysing symmetrically loaded thin shells of revolution'. Int. J. Numerical Methods in Engineering, 6, 475-487 (1973).

32. C.R. Calladine, 'Inelastic buckling of columns: the effect of imperfections', Int. J. Mech. Sci., 15, 593-604 (1973).

33. C.R. Calladine, 'On the derivation of yield conditions for shells', J. Appl. Mech., 39, 852-853 (1972).

34. C.R. Calladine, 'A plastic theory for collapse of plate girders under combined shearing force and bending moment'. The Structural Engineer, 51, 147-154 (1973).

35. C.R. Calladine, 'A new thermodynamic diagram for representing steady one-dimensional compressible fluid flow', J. Mech. Eng. Sci. 16, 192-195 (1974).

36. C.R. Calladine, 'Overconsolidated clay: a microstructural view'. Plasticity in Soil Mechanics, ed. A.C. Palmer, Cambridge University Engineering Department, 144-158 (1973).

37. C.R. Calladine and N. Paskaran, 'A re-appraisal of influence coefficients for the edges of thin elastic spherical shells subjected to symmetric loads'. Quart. J. Mech. and Appl. Maths, 27, 1-15 (1974).

38. C.R. Calladine, 'Limit analysis of curved tubes', J. Mech. Eng. Sci., 16, 85-87 (1974).

39. C.R. Calladine, 'Collapse of old metal organ pipes : a classroom demonstration of the creep buckling phenomenon'. Int. J. Mech. Eng. Education, 3, 183-187 (1975).

40. C.R. Calladine, 'Bacteria can swim without rotating flagellar filaments', Nature, 249, 385 (1975).

41. C.R. Calladine, 'Flexibility of axially symmetric bellows under axial loading', Int. J. Mech. Sci., 16, 843-853 (1974).

42. R.B. Gilbert and C.R. Calladine, 'Interaction between the effects of local and overall imperfections on the buckling of elastic columns', J. Mech. Phys. Solids, 22, 519-540 (1974).

43. C.R. Calladine, 'Construction of bacterial flagella', Nature, 255, 121-124 (1975).

44. C.R. Calladine, 'Design requirements for the construction of bacterial flagella', J. Theor. Biol., 57, 469-489 (1976).

45. A.L. Woodhead and C.R. Calladine, 'A novel finite-element method for use in classical elastic plate problems', Int. J. Mech. Sci., 18, 357-363 (1976).

46. C.R. Calladine, 'Thin-walled elastic shells analysed by a Rayleigh method', Int. J. Solids Structures, 13, 515-530 (1977).

47. C.R. Calladine, 'The static-geometric analogy in the equations of thin shell structures', Math. Proc. Camb. Phil. Soc., 82, 335-351 (1977).

48. C.R. Calladine, 'Buckminster Fuller's "Tensegrity" structures and Clerk Maxwell's rules for the construction of stiff frames', Int. J. Solids Structures, 14, 161-172 (1978).

49. C.R. Calladine, 'Change of waveform in bacterial flagella : the role of mechanics at the molecular level', J. Mol. Biol., 118, 457-479 (1978).

50. C.R. Calladine and J.A. Greenwood, 'Line and point loads on a non-homogenous incompressible elastic half-space', Quart. J. Mech. and Appl. Maths, 31, 507-529 (1978).

51. B.D. Reddy and C.R. Calladine, 'Classical buckling of a thin-walled tube subjected to bending moment and internal pressure', Int. J. Mech. Sci., 20, 641-650 (1978).

52. C.R. Calladine and J.M. Robinson, 'A simplified approach to the buckling of thin elastic shells', in Theory of Shells (ed. W.T. Koiter and G.K. Mikhailov) (Proceedings of IUTAM Symposium), 173-196 (1980). North-Holland Publishing Company .

53. C.R. Calladine, 'Toroidal elastic supercoiling of DNA', Biopolymers, 19, 1705-1713 (1980).

54. C.R. Calladine, 'Construction of bacterial flagellar filaments, and aspects of their conversion to different helical forms', in Prokaryotic and Eukaryotic Flagella (ed. W.B. Amos and J.G. Duckett) Proceedings of the 35th Symposium of the Society for Experimental Biology, Cambridge University Press, 1982, pp 33-51.

55. C.R. Calladine, 'Natural frequencies of cooling tower shells', J. Sound and Vibration, 82, 345-369 (1982).

56. C.R. Calladine, 'The theory of shell structures : aims and methods', Int. J. Mech. Sci., 24, 219-230 (1982).

57. C.R. Calladine, 'Modal stiffnesses of a pre-tensioned cable net', Int. J. Solids & Structures, 18, 829-846 (1982).

58. C.R. Calladine, 'Mechanics of sequence-dependent stacking of bases in B-DNA', J. Mol. Biol., 161, 343-352 (1982).

59. C.R. Calladine, Theory of Shell Structures, Cambridge University Press, (1983).

60. C.R. Calladine, 'Plastic buckling of tubes in pure bending', in Collapse: the buckling of structures in theory and practice, ed. J.M.T. Thompson and G.W. Hunt, 111-124, Cambridge University Press, (1983).

61. C.R. Calladine, 'Construction and operation of bacterial flagella', Sci. Prog. Oxf., 68, 365-385 (1983).

62. C.R. Calladine, 'An investigation of impact scaling theory', in Structural Crashworthiness, ed. N. Jones and T. Wierzbicki, 169-174, Butterworths, London, (1983).

63. S. Pellegrino and C.R. Calladine, 'Two-step matrix analysis of prestressed cable nets', in Proc. Third International Conference on Space Structures, ed. H. Nooshin, 744-749, Elsevier Applied Science Publishers, London, (1984).

64. C.R. Calladine and H.R. Drew, 'A base-centred explanation of the B-to-A transition in DNA', J. Mol. Biol., 178, 773-782 (1984).

65. C.R. Calladine, 'The strength of thin plates in compression', in Aspects of the analysis of plate structures, ed. D.J. Dawe et al., 271-293, Oxford University Press, (1985).

66. C.R. Calladine, Plasticity for Engineers, Ellis Horwood, Chichester, (1985) (updated re-issue of No. 19).

67. C.R. Calladine and R.W. English, 'Strain-rate and inertia effects in the collapse of two types of energy-absorbing structure', Int. J. of Mech. Sci., 26, 689-701 (1984).

68. C.R. Calladine, 'Gaussian curvature and shells structures'. In The Mathematics of Surfaces, ed. J.A. Gregory, 179-196, Oxford University Press, (1985).

69. S. Pellegrino and C.R. Calladine, 'Matrix analysis of statically and kinematically indeterminate frameworks", Int. J. Solids Structures, 22, 409-428 (1986).

70. C.R. Calladine, 'Analysis of large plastic deformations in shell structures'. In Inelastic Behaviour of Plates and Shells (IUTAM Symposium, Rio de Janeiro, 1985), ed. L. Bevilacqua et al., 69-101 Springer, Berlin, (1986).

71. A. Affan and C.R. Calladine, 'Structural Mechanics of double-layer grids'. In Shells, Membranes and Space Frames (I.A.S.S. Symposium, Osaka, 1986), ed. K. Heki, 3, 41-48. Elsevier, Amsterdam (1986).

72. K.S. Kandil and C.R. Calladine, 'Classical local buckling of tubes having rectangular cross-sections'. Int. J. Mech.Sci., 28, 789-797 (1986).

73. M. Stewart, A.D. McLachlan and C.R. Calladine, 'A model to account for the elastic element in muscle crossbridges in terms of a bending myosin rod'. Proceedings, Royal Society of London, B228, 381-413 (1987).

74. C.R. Calladine and H.R. Drew, 'Principles of sequence-dependent flexure of DNA. J. Mol. Biol., 192, 907-918 (1987).

75. H.R. Drew and C.R. Calladine, 'Sequence-specific positioning of core histones on an 860 base-pair DNA : experiment and theory'. J. Mol. Biol., 195, 143-173 (1987).

76. C.R. Calladine, 'The theory of thin shell structures 1888-1988' Proceedings of the Institution of Mechanical Engineers, 202, No. 42 (1988).

77. C.R. Calladine, 'Stability of the 'Endeavour' balloon'. In Buckling of Structures, ed. I. Elishakoff et al., 133-149. Elsevier, Amsterdam (1988).

78. S. Kamalarasa and C.R. Calladine, 'Buckle propagation in submarine pipelines'. Int. J. Mech. Sci., 30, 217-228 (1988).

79. C.R. Calladine, H.R. Drew and M.J. McCall, 'The intrinsic curvature of DNA in solution'. J. Mol. Biol., 201, 127-137 (1988).

80 H.R. Drew, M.J. McCall and C.R. Calladine, 'Recent studies of DNA in the crystal', Ann. Rev. Cell Biol., 4, 1-20 (1988).

81. S. Kamalarasa and C.R. Calladine, 'Geometry and strain in the transition region of a collapsing submarine pipe', Int. J. Mech. Sci., 31, 207-218 (1989).

82. R.E Dickerson, M. Bansal, C.R. Calladine and 14 others, 'Definitions and nomenclature of nucleic acid structure parameters', EMBO J., 8, 1-4 (1989).

also in Journal of Biomolecular Structure and Dynamics, 6, 627-634 (1989) also inJournal of Molecular Biology, 205, 787-791 (1989) also in Nucleic Acids Research, 17, 1797-1803 (1989) also in Journal of Biological Chemistry.

83. F. Abbassian and C.R. Calladine, 'On the deformation of the pipe wall during propagation of a ductile crack in a high-pressure gas pipeline'. ASME Journal of Pressure Vessel Technology, 3, 47-57 (1989).

84. A. Affan and C.R. Calladine, "Initial bar tensions in pin-jointed assemblies", International Journal of Space Structures, 4, 1-16 (1989).

85. G. Lu and C.R. Calladine, "On the cutting of a plate by a wedge", International Journal of Mechanical Sciences, 32, 293-313 (1990).

86. C.R. Calladine and S. Pellegrino, "First-order infinitesimal mechanisms", International Journal of Solids and Structures, 27, 505-515 (1991).

87. H.R. Drew, M.J. McCall and C.R. Calladine, "New approaches to DNA in the crystal and in solution", DNA Topology and its Biological Effects, Ed. N.R. Cozzarelli and J.C. Wang, 1-56, Cold Spring Harbor Press, (1990).

88. S. Pellegrino and C.R. Calladine, "Structural computation of an assembly of rigid links, frictionless joints, and elastic springs", Journal of Applied Mechanics, 58, 749-753 (1991).

89. C.R. Calladine, "The teaching of some aspects of the theory of inelastic collisions", International Journal of Mechanical Engineering Education, 18, 301-310 (1990).

90. L.L. Tam and C.R. Calladine, "Inertia and strain-rate effects in a simple plate-structure under impact loading", International Journal of Impact Engineering, 11, 349-377 (1991).

91. C.R. Calladine, C.M. Collis, H.R. Drew and M.R. Mott, "A study of electrophoretic mobility of DNA in agarose and polyacrylamide gels", Journal of Molecular Biology, 221, 981-1005 (1991).

92. R. Phaal and C.R. Calladine, "A simple class of finite elements for plate and shell problems. I: Elements for beams and thin flat plates", International Journal for Numerical Methods in Engineering, 35, 955-977 (1992).

93. R. Phaal and C.R. Calladine, "A simple class of finite elements for plate and shell problems. II: An element for thin shells, with only translational degrees of freedom", International Journal for Numerical Methods in Engineering, 35, 979-996 (1992).

94. C.R. Calladine and S. Pellegrino, "Further remarks on first-order infinitesimal mechanisms", International Journal of Solids and Structures, 29, 2119-2122 (1992).

95. C.R. Calladine, "How should structures be taught in universities?", In Education for Structural Engineering, Ed. D. McKay, 37-44, Innovative Press, Sheffield, (1992).

96. C.R. Calladine and H.R. Drew, Understanding DNA: the molecule and how it works, ix + 220pp, Academic Press, (1992).

97. C.R. Calladine and H.R. Drew, "Curvature and Flexibility of DNA: sequence-directed effects seen from a structural mechanics viewpoint", In Molecular Structures and Life, Ed. Y. Kyogoku and Y. Nishimura, 43-55, Japan Scientific Society Press, Tokyo/CRC Press, Boca Raton, (1992).

98. M.R. Mott, D. Cox, H.R. Drew, C.M. Collis and C.R. Calladine, "Review on visualization by electron microscopy of double stranded curved DNA in relation to migration through electrophoretic gels", Journal of Computer-Assisted Microscopy, 5, 131-134 (1993).

99. C.R. Calladine, Editorial for "Masonry construction: structural mechanics and other aspects", Meccanica, 27 (3) (1992).

100. C.R. Calladine, "Stability: background to codes" (22pp) in Storage Tank Design Philosophy and Practice, University of Cambridge Programme for Industry intensive design course, Ed. S.C. Palmer, (1992).

101. D.C. Pamplona and C.R. Calladine, "The mechanics of axially symmetric liposomes", Journal of Biomechanical Engineering, A.S.M.E. 115, 149-159 (1993).

102. C.R. Calladine, "Application of structural mechanics to biological systems". In Theoretical and Applied Mechanics 1992 (IUTAM Congress, Haifa, Israel), ed. S.R. Bodner, J. Singer, A. Solan and Z. Hashin; Elsevier Science Publishers B.V., pp 205-220 (1993).

103. C.R. Calladine, "Some problems in propagating plasticity". In Plasticity and Impact Mechanics (Proceedings of a Symposium, IIT, Delhi, 11-14 December 1993); Edited by N.K. Gupta, pp 71-97, Wiley Eastern, New Delhi (1993).

104. C.R. Calladine, "Causes of imperfection-sensitivity in the buckling of thin shells". Euromech Colloquium 317, Buckling Strength of imperfection-sensitive shells, Liverpool, March 1994. Thin-walled Structures 23, 215-235 (1995).

105. J.M.F.G. Holst, and C.R. Calladine "Inversion problems in thin elastic shells. European Journal of Mechanics A/Solids, 13 No. 4, supplement 3-18 (1994).

106. T.C. Maltby and C.R. Calladine, "An investigation into upheaval buckling of buried pipelines : I. Experimental apparatus and some observations." International Journal of Mechanical Sciences, 37, 943-963 (1995).

107. T.C. Maltby and C.R. Calladine , "An investigation into upheaval buckling of buried pipelines : II. Theory and analysis of experimental observations." International Journal of Mechanical Sciences, 37, 965-983 (1995).

108. M.A. El Hassan and C.R. Calladine, "The assessment of the geometry of dinucleotide steps in double-helical DNA; a new local calculation scheme". Journal of Molecular Biology , 251, 648-664 (1995).

109. E.T. Hambly and C.R. Calladine, "Buckling experiments on damaged cylindrical shells". International Journal of Solids and Structures, 33, 3539-3548 (1996).

110. C.R. Calladine, "Some paradoxical experiments on beams". International Journal of Mechanical Engineering Education, 24, 37-48 (1996).

111. C.R. Calladine and H.R. Drew, "DNA Structure". In Encyclopedia of Molecular Biology and Molecular Medicine, Ed. R.A. Meyers. VCH, Weinheim. Vol. 2 pp102-118, (1996).

112. C.R. Calladine and H.R. Drew, Understanding DNA, (Japanese translation) Kyoritsu Shuppan, Tokyo, (1996).

113. M.A. El Hassan and C.R. Calladine, "Curvature and torsion of infinitely repeating DNA sequences". Proc. Roy. Soc. A 453, 365-386 (1997).

114. M.A. El Hassan and C.R. Calladine "Conformational characteristics of DNA; empirical classifications and a hypothesis for the conformational behaviour of dinucleotide steps". Phil. Trans. Roy. Soc. A 355, 43-100 (1997).

115. M.A. El Hassan and C.R. Calladine "Propeller-twisting of base-pairs and the flexibility of dinucleotide steps". J. Mol. Biol. 259, 95-103 (1996).

116. M.A. El Hassan and C.R. Calladine "Structural mechanics of bent DNA". Endeavour 20, 61-68 (1996).

117. C.R. Calladine and H.R. Drew "A useful role for "static" models in elucidating the behaviour of DNA in solution". J. Mol. Biol. 257, 479-485 (1996).

118. D.C. Pamplona and C.R. Calladine "Aspects of the mechanics of lobed liposomes" Journal of Biomechanical Engineering, A.S.M.E. 118, 482-488 (1996).

119. L.C. Lutter, H.R. Halvorson and C.R. Calladine "Topological measurement of protein-induced DNA bend angles" J. Mol. Biol. 261, 620-633 (1996).

120. C.R. Calladine and H.R. Drew, "Understanding DNA : the molecule and how it works" (2nd Edition) (cf 96) (1997).

121. C.R. Calladine "Upheaval and lateral buckling of submarine pipelines". In Advances in Steel Structures (Proceedings of International Conference, Hong Kong, 11-14 December 1996); Ed. S.L. Chan and J.G. Teng, pp 647-656, Pergamon Press (1996). 122. C.R. Calladine, Mühendislikte Plastisite, Bilimsel ve Teknik Yayinlari Çeviri Vakfi (Translation of 66 into Turkish by E.Inan and E.Togrol) (1996).

123. M.A. El Hassan and C.R. Calladine "Two distinct modes of protein-induced bending in DNA" J. Mol. Biol. 282, 331-343 (1998).

124. J.M.F.G. Holst, J.M. Rotter and C.R. Calladine "Imperfections in cylindrical shells resulting from fabrication misfits". Jl of Engineering Mechanics, ASCE 125, 410-418 (1999).

125. P. Mandal and C.R. Calladine "Buckling of thin cylindrical shells under axial compression" Int. Jl of Solids and Structures 37, 4509-4525 (2000).

126. D.J. Miles and C.R. Calladine "Lateral thermal buckling of pipelines on the sea bed". Jl of Applied Mechanics, ASME 66, 891-897 (1999).

127. E.R. Lancaster, C.R. Calladine and S.C. Palmer "Paradoxical buckling behaviour of a thin cylindrical shell under axial compression". Int Jl of Mechanical Sciences 42, 843-865 (2000).

128. J.M.F.G. Holst, J.M. Rotter and C.R. Calladine "Imperfections and buckling in cylindrical shells with consistent residual stresses". Jl of Constructional Steel Research 54, 265-282 (2000).

129. A.C. Palmer, L. Tebboth, D. Miles and C.R. Calladine "Instability of pipelines on slopes" Jl of Applied Mechanics, ASME 66, 794-799 (1999).

130. S.D. Guest, and C.R. Calladine "Matrices in the teaching of statically indeterminate structures" Civil and Structural Engineering Education in the 21st Century, Proceedings of a conference, Ed. H.G.Allen, pp. 285-296. University of Southampton, Southampton (2000).

131. E. Zhu, and P. Mandal, and C.R. Calladine, (2002) "Buckling of thin cylindrical shells : an attempt to resolve a paradox" International Journal of Mechanical Sciences, 44, 1583-1601. (2002)

132. C.R. Calladine "A shell-buckling paradox resolved". In Advances in the mechanics of plates and shells, Ed.D.Durban, G.Givoli and J.G.Simmonds pp119-134: Kluwer Academic Publishers, Dordrecht (2000).

133. C.R.Calladine, A.Sharff, and B.F.Luisi, (2001) "How to untwist an a-helix: structural principles of an a-helical barre"l. Journal of Molecular Biology, 305 (3). pp. 603-618 (2001).

134. C.R.Calladine "Deployable structures: what can we learn from biological structures?" In Deployable structures: theory and applications" (Proc. IUTAM - IASS Symposium, 6-9 Sept. 1998). Ed.S.Pellegrino & S.D.Guest, pp 63-76, Kluwer Academic Publishers, Dordrecht (2000).

135. A.Sharff, and C.Fanutti, and J.Shi, and C.R.Calladine, and B.Luisi, "The role of the TolC family in protein transport and multidrug efflux : from stereochemical certainty to mechanistic hypothesis". European Journal of Biochemistry, 268, 5011-5026 (2001).

136. C.R.Calladine "Some thoughts on research". In New Approaches to Structural Mechanics, Shells and Biological Structures, Ed.H.R.Drew and S.Pellegrino, pp1-10: Kluwer Academic Publishers, Dordrecht (2002).

137. C.R.Calladine, J.A.Greenwood, "Mechanics of tether formation in liposomes". Journal of Biomechanical Engineering, A.S.M.E.124, 576-585(2002).

138. P.Mandal, C.R.Calladine, "Lateral-torsional buckling of beams and the Southwell Plot". International Journal of Mechanical Sciences, 44, 2557-2571(2002).

139. C.R.Calladine, V.Pratap, and V. Chandran,and K.Mizuguchi, and B.F.Luisi, "Cylindrical channels from concave helices". Science, 299, 661-662 (2003).

140. C.R.Calladine, H.R.Drew, B.F.Luisi and A.A.Travers, "Understanding DNA: the molecule and how it works (3rd edition) xiii +334, Elsevier (2004) (cf. 96,120).

141. D.C.Pamplona, J.A.Greenwood and C.R.Calladine, "The buckling of spherical liposomes". ASME Journal of Biomechanical Engineering 127, 1062-1069 (2005).

142. S.M.Farmer and C.R.Calladine, "Geometry of "developable cones". International Journal of Mechanical Sciences, 47,  509-520. (2005)

143. C.R.Calladine, "An improvement on Magnel's diagram, and an application". Proceedings of the Institution of Civil Engineers: Structures and Buildings, 159,145-152 (2006).

144. C.R.Calladine, "A preliminary structural analysis of a Guastavino spiral staircase shell" In Essays in the history of the theory of structures, in honour of Jacques heyman, Ed.Santiago Huerta, 79-102: Instituto Juan de Herrera, Madrid (2005).

145. C.A.Laughton, B.F.Luisi, J.V.Pratap and C.R.Calladine "A potential molecular switch in an alpha-helical coil" Proteins: structure, function and bioinformatics 70, 25-30 (2008).

146. J.V.Pratap, C.R.Calladine and B.F.Luisi "Geometric principles in the assembly of alpha-helical bundles" [in preparation].

147. P. Mandal and C.R.Calladine "Vibrational frequencies of a Guastavino spiral staircase shell". In Structures and granular solids (ed. J.F.Chan, J.Y.Ooi and J.G. Teng) 231-244 (2008). CRC Press, Boca Raton.