Tong Sun

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Questions related from Tong Sun

Should the ηpl in the normalized load formula be calculated based on a0 or abi in the normalization method?

In the normalization method, the formula of the normalized force is shown in the figure. Should the ηpl (marked with the red box in the figure) be calculated based on the initial crack length a0...

07 December 2024 7,391 0 View

What's the difference between nonlinear elastic material and elastic plastic material?

I use the contour integral method to calculate the J-integral in ABAQUS. The constitutive model are deformation plasticity (R-O model) and plastic increment (true stress-strain) respectively. The...

25 April 2021 7,349 5 View

How to model the side groove of CT specimen in ABAQUS?

I use the contour integral to calculate the J-integral of CT specimen with side grooves in ABAQUS. However, I can't model the side grooves. I've tried many attempts to sweep or extrude the...

22 April 2021 6,356 0 View

Why is the mesh deformation in crack tip region very large when using R-O constitutive model to calculate the J-integral of CT specimen in ABAQUS?

I use the contour integral method in ABAQUS to calculate the J-integral of CT specimen(2D). The constitutive model is Ramberg-Osgood model, which is the deformation plasticity in ABAQUS. When the...

11 April 2021 1,532 1 View

Why is the J-integral of CT specimen calculated by contour integral method in ABAQUS related to the path?

I use the contour integral method in ABAQUS to calculate the J-integral of CT specimen(2D). The material is elastic-plastic, and the constitutive model is established by using incremental...

11 April 2021 8,912 5 View