Thermoelastic Assessment of Damage Growth in Composites

A BS TRA C T This paper examines, experimentally and numerically, the use of thermal emission measurements as a means of assessing severity of damage and monitoring damage growth in composite materials. In contrast to most traditional methods the thermal emission profile reflects the interaction of load, geometry, material and damage in a non-destructive fashion. It represents a possible method for the scaling of test data, obtained from coupon tests, to tests on full scale structures.

[1]  J. F. Williams,et al.  Thermomechanical analysis of composite specimens , 1989 .

[2]  H. Dill,et al.  Damage mechanism and life prediction of graphite/epoxy composites , 1982 .

[3]  J. F. Williams,et al.  Assessment of the effect of impact damage in composites: Some problems and answers , 1988 .

[4]  Rosenfeld,et al.  Compression Fatigue Behavior of Graphite/Epoxy in the Presence of Stress Raisers , 1981 .

[5]  A. Baker,et al.  Bonded repair of aircraft structures , 1988 .

[6]  S. M. Bishop,et al.  The Effect of Damage on the Tensile and Compressive Performance of Carbon Fibre Laminates , 1983 .

[7]  D. Saunders,et al.  Effect of load duration on the fatigue behaviour of graphite/epoxy laminates containing delaminations , 1988 .

[8]  D. Schütz,et al.  Fatigue Properties of Unnotched, Notched, and Jointed Specimens of a Graphite/Epoxy Composite , 1981 .

[9]  James H. Starnes,et al.  Effect of Impact Damage and Holes on the Compressive Strength of a Graphite/Epoxy Laminate , 1979 .

[10]  A. Machin,et al.  Mean stress dependence of the thermoelastic constant , 1987 .

[11]  T K Obrien,et al.  Mixed-mode strain-energy-release rate effects on edge delamination of composites , 1984 .

[12]  A. K. Wong,et al.  On the revised theory of the thermoelastic effect , 1988 .

[13]  J. F. Williams,et al.  An analysis of delamination behaviour , 1986 .

[14]  E. Purington Mathematics 10 , 1967, IEEE Spectrum.

[15]  Anthony G. Evans,et al.  On the mechanics of delamination and spalling in compressed films , 1984 .

[16]  R. Ramkumar Compression fatigue behavior of composites in the presence of delaminations , 1982 .

[17]  B. Harris,et al.  Fatigue and accumulation of damage in reinforced plastics , 1977 .

[18]  R. Jones,et al.  Thermoelastic constant or thermoelastic parameter , 1987 .

[19]  Ramesh Talreja,et al.  A Conceptual Framework for the Interpretation of Fatigue Damage Mechanisms in Composite Materials , 1985 .

[20]  T. G. Ryall,et al.  Determining stress components from the thermoelastic data—A theoretical study , 1988 .

[21]  L. Molent,et al.  Bonded repair of metallic components: Thick sections , 1988 .

[22]  R. F. Mousley,et al.  Compression failures of damaged graphite epoxy laminates , 1985 .

[23]  T. O'Brien Characterization of delamination onset and growth in a composite laminate , 1982 .

[24]  A. Baker,et al.  Damage tolerance of graphite/epoxy composites , 1985 .

[25]  Alan Baker,et al.  Repair of mirage III aircraft using the BFRP crack-patching technique , 1984 .

[26]  N. Adsit,et al.  Effect of Near-Visual Damage on the Properties of Graphite/Epoxy , 1979 .

[27]  R. D. Henshell,et al.  CRACK TIP FINITE ELEMENTS ARE UNNECESSARY , 1975 .

[28]  Ravi Prakash,et al.  Significance of defects in the fatigue failure of carbon fibre reinforced plastics , 1981 .

[29]  J. F. Williams,et al.  Thermomechanical behaviour of composites , 1989 .