Professor Stephen Ogin

Research Interests

• Mechanical property/damage relationships in continuous and short fibre polymer-matrix composites
• Characterisation and modelling of damage in fabric-based polymer matrix composites
• The use of sensors for monitoring damage in composite materials
• Cyclic deformation of metals and metal-matrix composites

Publications

Johanneson B and Ogin S L “Internal stresses in planar random fibre aluminium composites – 1. Tensile tests and cyclic Bauschinger experiments at room temperature and 77K,” Acta metall mater, vol 43, pp4337-4348, 1995

Tong J, Guild F J, Ogin S L and Smith P A "On matrix crack growth in quasi-isotropic laminates 1: Experimental investigation." Composites Science and Technology, vol 57, pp1527-1535, 1997.

Whiting M J and Ogin S L "Dislocation wall structures near a stress concentration in fatigued copper polycrystals." Scripta Metallurgica, vol 36, no 7, pp763-768, 1997.

Crocker L E, Ogin S L, Smith P A and Hill P "Intralaminar fracture in angle-ply laminates." Composites Part A, 28A, pp839 - 846, 1997.

Bassam F, Boniface L, Jones K and Ogin S L "On the behaviour of the residual strain produced by matrix cracking in crossply laminates." Composites, vol 29A, pp1425-1432, 1998.

Arjyal B P, Galiotis C, Ogin S L and Whattingham R D "Monitoring local strains in cracked cross-ply composites using an embedded fibre strain sensor." Journal of Materials Science, vol 33, pp2745-2750, 1998.

Gao F, Boniface L, Ogin S L and P A Smith "Damage accumulation in woven fabric CFRP laminates under tensile loading: Part 2 - Modelling the effect of damage on macromechanical properties." Composites Science and Technology, vol 59, pp137-145, 1999.

Smith P A and Ogin S L, "On transverse matrix cracking in crossply laminates loaded in simple bending", Composites, vol A30, pp1003-1008, 1999

Belmonte H M S, Manger C I C, Ogin S L, Smith P A and Lewin R “Characterisation and modelling of the notched tensile fracture of woven quasi-isotropic GFRP laminates,” Composites Science and Technology, vol 61, pp585-597, 2001

Barton E N, Ogin S L, Thorne A M, Reed G T and Hongrui W “Use of a polarimetric sensor to detect the fatigue growth of matrix cracks in a cross-ply composite laminate,” to appear in the Proceedings of the International Conference on Composite Materials, !CCM13, Beijing, China, July 2001

Barton E N, Ogin S L, Thorne A M and Reed G T, “Optimisation of the coating of a fibre optical sensor embedded in a cross-ply laminate.” Composites, vol A33, 2002 (in the press)

Current Research Programmes

• Structural integrity of woven fabric composites
• Notched strength of woven GFRP and CFRP composites
• Mechanical property/damage accumulation relationships in knitted fabric reinforced composites
• Damage monitoring in composite materials using fibre optical sensors
• Thermal spiking of polymer matrix composites

Professional Activities

Member, Materials and Characterisation Group, Institute of Physics