The plastic enclaves surrounding fatigue cracks in different materials tested at different stress intensities were studied using moir猫 interferometry. Two distinct plastic zones were identified and their sizes correlated with previous theoretical and experimental results for plane strain. After the ...
Fatigue crack growth behaviour of small surface cracks in two 伪_2 (Ti_3Al) based titanium aluminide alloys, Ti-24Al-11Nb (at%) and Ti-25Al-17Nb-1Mo, was i... KS Ravichandran,JM Larsen - 《International Journal of Fatigue》 被引量: 0发表: 1996年 On the role of microstructure in...
The natural response of the free-free shaft is calculated through a Galerkin procedure. The results indicated a clear change in the natural frequencies of the cracked nonrotating shaft. 展开 关键词:Vibration Fatigue cracks 会议名称: ASME 1997 International Gas Turbine and Aeroengine Congress and ...
DOT SIMULATION OF BEHAVIOR OF FATIGUE CRACKS: A COMPLETE INDUSTRIAL PROCESS ON A TYPICAL CONNECTION IN A FPSO Simulation of behavior of fatigue cracks: a complete industrial process on a typical connection in a FPSO [C]//Proceedings of the ASME 2009 28th ... M Serror,D Lebaillif,I Huther...
Growth rates of fretting fatigue cracks as determined from striation spacings were much higher than would be expected for this alloy based on the cyclic stresses alone. The results indicate that in the early stages of crack growth fretting acts to increase the effective stress intensity factor ...
rates fatigue crack growth thresholds intermediate fatigue crack growth rate martensite microstructures yield strength ferrite pearlite steel/ A6220F Deformation and plasticity A6220M Fatigue, brittleness, fracture, and cracks A8140L Deformation, plasticity and creep A8140N Fatigue, embrittlement, and ...
Fretting fatigue tangential stress intensity crack nucleation threshold σ1 Maximum principal stress σ1max Maximum principal stress highest value on a loading cycle σ1dyn,σ1stat Alternating and constant component of the maximum principal stress describing a loading cycle 1. Introduction In a context...
Slip reversibility is also considered. The work suggests that the amount and size of alpha(2) particles based on Ti3Al is mainly responsible for this dependence in the high DeltaK range. 展开 关键词: Experimental/ ageing aluminium alloys crystal microstructure deformation fatigue cracks molybdenum ...
The influence of crack closure on the positive load ratio (R) dependence of fatigue threshold stress intensity factor range (ΔKth) of AISI 316 stainless s... Ray,S.L. Mannan.The influence of crack closure on the positive load ratio (R) dependence of fatigue threshold stress intensity ...
Collective damage of short fatigue cracks was analyzed in the light of equilibrium of crack numerical density. With the estimation of crack growth rate and crack nucleation rate, the solution of the equilibrium equation was studied to reveal the distinct feature of saturation distribution for crack ...