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  1. csmanien

    Thickness effect in crack-tip stress analysis

    After literature search, It is concluded that 3D is the final option for evaluating both in-plane and out-of plane effects at the crack-tip. Thanks Mustaine3 for good discussion.
  2. csmanien

    Thickness effect in crack-tip stress analysis

    Thanks for the reply, Mustaine3 - z is the thickness direction. IceBreakerSours - I am running a fracture mechanics simulation.
  3. csmanien

    Thickness effect in crack-tip stress analysis

    I am studying the constraint effects in fracture. I took different geometries to evaluate crack-tip constraint parameter 'Q'. The constraint variables consists of geometry of the specimens, a/W ratio, loading modes and B/W ratio. B/W ratio involves thickness effects. The critical fracture...
  4. csmanien

    Thickness effect in crack-tip stress analysis

    Thank you Mustaine3 (Mechanical) again for the reply. As per your advice, I ran my analysis in 2D solid with CPE8R plane strain analysis on 20,10 and 5 mm thick specimens of a/W0.5. Plane stress/strain thickness in section is also assigned. I expect decreasing S22 at the crack tip (at the same...
  5. csmanien

    Thickness effect in crack-tip stress analysis

    Thank you Mustaine3 (Mechanical) for the reply. I found ,no significant difference in stress when tried with CPE8R with different thicknesses. After your reply, I have changed my analysis to 3D shell planar with S4R elements with different thicknesses, but still I couldn't get the decreasing...
  6. csmanien

    Thickness effect in crack-tip stress analysis

    Hi I am analysing crack-tip to study thickness effect in Elastic Plastic fracture mechanics. Here I have taken two TPB specimen geometry with a/w 0.3 and 0.5 with 10mm and 2.5 mm thickness. I have used 'Tool-Midsurface-Assign thickness and offset' option to specify thickness rather than 'using...
  7. csmanien

    slight deviation in Abaqus stress-strain curve..need help

    How to overcome this problem? While comparing Tensile Stress-Strain curve of Experimental and Abaqus results, slight deviation after yield stress found in Abaqus results. -checked material data elastic and plastic -Tried BC with velocity = 0.00833 mm/sec or displacement = 2 mm with...

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