Prospects of Fracture Mechanics: Held at Delft University of Technology, the Netherlands June 24-28, 1974

ISBN-13: 9789401023160 / Angielski / Miękka / 2014 / 643 str.

George C. Sih; H. C. Van Elst; D. Broek

Spis treści

Section I Inclusions and Void Growth.- A critical assessment of plastic hole-growth mechanisms of ductile fracture.- Particles and crack growth in aluminum alloys.- Observations of cavity nucleation, growth and coalescence in dimpled rupture.- Propagation of cleavage microcracks in triaxial stress fields.- Section II Energy Criteria and Path Independent Integrals.- The calculation of energy release rates.- Surface layer energy and strain energy density for a blunted crack or notch.- Development of the nonlinear energy method for determination of fracture toughness values.- The importance of stable crack extension in linear and non-linear fracture mechanics.- Path independent integrals in fracture mechanics and their relation to variational principles.- Section III Fatigue Crack Propagation.- The influence of fracture toughness on sub-critical flaw growth.- Experimentally observed plasticity effects on crack closure and subcritical crack growth.- Fatigue crack growth under variable-amplitude loading.- Modeling of the phenomena of fracture in solids.- Load and environment interactions in fatigue crack growth.- Section IV Dynamics and Arrest.- An analysis of dynamic crack propagation and arrest for a material having a crack speed dependent fracture toughness.- Temperature dependence of rapid crack propagation and arrest in A517F steel.- Application of the strain energy density fracture criterion to dynamic crack problems.- Criteria for steady state crack extension in gas pipelines.- Elastodynamic stress intensity factors for a bifurcating crack.- Some aspects of dynamic crack propagation: a review and some generalisations.- Section V Structural Analysis.- Fracture mechanics and ships.- Analysis of energy quantities for fracture under biaxial stresses.- An improved technique for residual strength prediction — a modified crack growth resistance approach.- On the prediction of catastrophic failures in pressurized vessels.- The effects of fastener flexibility and stiffener geometry on the stress intensity in stiffened cracked sheet.- Important aspects of crack growth prediction for aircraft structural applications.- Section VI Stress Analysis and Analytical Modeling.- A critical survey of models that account for non-linearity of material behaviour at a crack tip.- Fracture of composite materials.- Recent developments in fracture of filamentary composites.- A critical review of anisotropic fracture mechanics.- Stress intensity factors for elliptical cracks.- Section VII Fracture Experiments and Testings.- Present status on the evaluation criteria of fracture toughness for structural steels and their welded joints in Japan.- The use of small, pre-cracked specimens for quality control purposes.- Slow crack growth and failure prediction of brittle materials subjected to a transient thermal stress.- Experimental methods for the determination of stress intensity factors under various loading conditions.- Written Discussions.- Plastic strip model for thin shells.- Elastic-plastic fracture mechanics.- Stress intensity factor determination for polymers.- Antiplane steady state crack motion in a perfectly plastic material.- On brittle crack propagation and arrest.- Design considerations in fracture mechanics.- List of Participants.- Author’s Index.