Damage and Fracture Mechanics VI: Computer Aided Assessment and Control

Citation

(2002), "Damage and Fracture Mechanics VI: Computer Aided Assessment and Control", Aircraft Engineering and Aerospace Technology, Vol. 74 No. 3. https://doi.org/10.1108/aeat.2002.12774cae.001

Damage and Fracture Mechanics VI: Computer Aided Assessment and Control

Editors: A.P.S. Selvadurai and C.A. Brebbia

Keywords: Mechanics, Fracture, Research

Now available from WIT Press this book contains a balanced set of topics of interest both to fracture and damage mechanics specialists. These include fracture mechanics and fracture criteria, damage mechanics, composite materials, crack propagation and control, dynamic fracture, fatigue, industrial applications, microstructural and micromechanical modelling, creep and high temperature, advanced analysis methods, metallic and non-metallic materials, and environmental effects.

Identifying new directions in both research areas, the volume features over 55 state-of- the-art contributions from scientists working around the world. The papers included were originally presented at the Sixth International Conference on Damage and Fracture Mechanics.

Section 1: Fracture Mechanics and Fracture Criteria – The bridged external circular crack; Numerical analysis of fracture in smart composite structures; Evaluation of fracture parameters for functionally gradient materials; A mechanical model for compressed concrete in RIC beams; J estimation for single-edge-notch tension specimens subjected to fixed-grip loading; Stress intensity factor analysis for an interface crack between dissimilar isotropic materials under thermal stress; Surface fatigue crack growth under EHD lubrication conditions; Some experiences in using the K-gage to measure stress intensity factors; Effect of orientation and loading rate on the toughness transition curve of a ship steel.

Section 2: Damage Mechanics – Damage and spalling in BP and UBP concrete at high temperature; Long-term damage processes in RC-folded plate structures with textile reinforcement; Experimental determination and computational modelling of the damage development during ductile fracture of a free- cutting steel; Failure site of axisymmetric notched specimens as predicted by continuum damage mechanics; Analysis of damage tolerance to tear propagation in stressed structural fabrics; Critical notes on evaluation of secant moduli and secant Poisson's ratio in solid bodies.

Section 3: Composite Materials – Optimal coating of fibers in composites; Fracture and damage in polyester/glass woven-fabric composites; Damage generated in carbon/ epoxy composite plates with holes under different levels of impact energy.

Section 4: Crack Propagation and Control – Fatigue crack growth mechanisms of cast Ti-48A1 (at. per cent) alloy; Fracture and yielding behaviours of polystyrene/ethylene – propylene rubber blends: Effects of interfacial agents; Analytical method to predict initiation of multiple site damage at mechanical joints; Computational and experimental analysis of residual stress effects on fatigue crack growth in a compact tension shear (CTS) specimen; Numerical analysis of the fatigue crack growth on gears.

Section 5: Dynamic Fracture – Influence of the heat exchange rate upon dynamic effects and bound effects in massive fractured solids; Modelling dynamic fracture following high shock compression.

Section 6: Fatigue – Effect of compressive mean stress on fatigue properties of structural steel; How gears break; Approximate prediction of mixed-mode fatigue crack growth; Investigation of roughness induced crack closure effects in fatigue; Fatigue crack growth in fibre reinforced metal laminates; Fatigue life prediction for a cracked notched element under symmetric load condition; The fatigue test and analysis for 50AT and 60AT railroad rails; Validation of a calibration procedure for fatigue crack growth measurement in circular section specimens.

Section 7: Industrial Applications – Effects of ageing on fracture behaviour of polycarbonate;

Quality of life: activities at Volvo Aero Corporation to assess and improve the accuracy of assumptions and methods employed in calculating the service life of aero engine components; Numerical analysis of failure mechanisms of historical constructions.

Section 8: Microstructural and Micromechanical Modelling – Stress concentrations at grain boundaries due to anisotropic elastic material behaviour; Proper defect density parameters for anisotropic solids with cracks and elliptical holes.

Section 9: Creep and High Temperature – Effects of end loading on the creep failure behaviour of CrMoV welds in main stern pipelines; Effect of temperature on ductility and fracture mechanisms of 2124/SiCp composite; Development of constitutive equations for creep damage behaviour under multi-axial states of stress; Creep damage accumulation under multistage loading.

Section 10: Advanced Analysis Methods – Highly accurate values of KI and KH of axially symmetrical cracked body subjected to tension obtained by FEM; Stability of tunnel face using coupled DSC & TFA models; The boundary collocation method for multiple collinear cracks near finite boundaries in an unstiffened sheet; Stress intensity factors for two critical angular positions of semi-elliptical surface cracks in shafts; A hybrid method based upon the finite element alternating technique for 3D fracture analysis; A higher- order finite element to model singularities; Implementation of a unified material model in finite element analysis and simulations of cracked components; Coupled modelling using unified function.

Section ll: Metallic and Non-Metallic Materials – Development of A1203/CU functionally gradient material based on residual stress analysis; Numerical verification of the Bridgman model for notched and unnotched round specimens.

Section 12: Environmental Effects – A thermoplastic damage model for cyclic loading of concrete at elevated temperatures; Contribution for modelling creep and drying shrinkage of reinforced concrete structures; Corrosion prediction in ageing aircraft materials; Corrosion performance of zinc chromate (hexa:tri Cr) complex compound coating on zinc coated components.

Details available from: WIT Press. Tel: +44 (0) 238 092 3223; Fax: +44 (0) 238 029 2853; E-mail: witpress@witpress.com; website: http://www.witpress.com