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In this paper, the recently proposed linear smoothed extended finite element method (LSmXFEM) is employed to simulate the fatigue crack growth. Unlike the conventional extended finite element method, the LSmXFEM does not require special numerical integration technique to integrate the terms in the stiffness matrix. The stress intensity factors (SIFs) are evaluated by using the domain form of the interaction integral technique. The fatigue crack growth rate is evaluated using the generalized Paris’ law in conjunction with the maximum hoop stress criterion. The robustness of the method is demonstrated with a few examples for which the results are available in the literature. Then, the fatigue crack growth from the numerical simulation is compared with the experimental investigations performed on CR5 grade cold formed steel. It is seen that the fatigue life and the crack path obtained from the proposed method is in close agreement with the experimental observation.

In this paper, the recently proposed linear smoothed extended finite element method (LSmXFEM) is employed to simulate the fatigue crack growth. Unlike the conventional extended finite element method, the LSmXFEM does not require special numerical integration technique to integrate the terms in the stiffness matrix. The stress intensity factors (SIFs) are evaluated by using the domain form of the interaction integral technique. The fatigue crack growth rate is evaluated using the generalized Paris’ law in conjunction with the maximum hoop stress criterion. The robustness of the method is demonstrated with a few examples for which the results are available in the literature. Then, the fatigue crack growth from the numerical simulation is compared with the experimental investigations performed on CR5 grade cold formed steel. It is seen that the fatigue life and the crack path obtained from the proposed method is in close agreement with the experimental observation.

The compatibility of Pseudomonas fluorescens with 15 fungicides, 9 insecticides and 10 weedicides was tested under laboratory condition. All insecticides, herbicides and 12 fungicides except saaf, kocide (copper hydroxide) and zineb were found to be compatible with P. fluorescens. The study indicated that most of the fungicides, insecticides and weedicides can be mixed with P. fluorescens for use in agriculture.

The compatibility of Pseudomonas fluorescens with 15 fungicides, 9 insecticides and 10 weedicides was tested under laboratory condition. All insecticides, herbicides and 12 fungicides except saaf, kocide (copper hydroxide) and zineb were found to be compatible with P. fluorescens. The study indicated that most of the fungicides, insecticides and weedicides can be mixed with P. fluorescens for use in agriculture.

Pure cultures of bacterial antagonist, Pseudomonas fluorescens were isolated from different locations in Kuttanad for screening against rice sheath blight disease. Three effective strains, viz., PF43, PF46 and PF47 were tested individually and also in combination against sheath blight under field conditions. Combined application of PF43, PF46 and PF47 was found to be effective for sheath blight disease management during rabi 2009-10, kharif 2010 and rabi 2010-11.

Pure cultures of bacterial antagonist, Pseudomonas fluorescens were isolated from different locations in Kuttanad for screening against rice sheath blight disease. Three effective strains, viz., PF43, PF46 and PF47 were tested individually and also in combination against sheath blight under field conditions. Combined application of PF43, PF46 and PF47 was found to be effective for sheath blight disease management during rabi 2009-10, kharif 2010 and rabi 2010-11.