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Questions related from Asgar Mohamadzadeh
for growsing crack of ductile material sem result show front of crack is curve shape. is that becuse plane strain condition is center of plate and plane stress condition on surface? can any one...
13 September 2014 1,624 8 View
I want to model a twisted blade in ansys and nonlinear dynamic analyses, but solid element is not match with beam element and they are very different result. Now I don't know I select which...
10 September 2014 7,539 3 View
When I use the XFEM method in Abaqus to predict fracture of my materials, Abaqus gives good results about crack initiate and maximum load, but it can't predict crack grows. In Abaqus, after...
17 July 2014 4,289 16 View
I take SEM from my specimen. My specimen has 2 zones where one a stable crack grows at 25 C and there is an unstable fracture in liquid nitrogen. I expected that my ductile zone have non smooth...
10 July 2014 5,293 9 View
I fit my data in MATLAB with a function and I can see the results and coefficients in the command window. I need this coefficient in order to continue with my codes, but I can't input this...
14 June 2014 3,608 17 View
I simulate crack grows for a specimen in abaqus and use XFEM method. When my crack initiates and grows a bit and before full break the specimen I faced this error: too many attempt for this increment.
04 March 2014 5,001 30 View
I want to investigate fracture toughness of rubber toughened of PMMA with elastic plastics methods. I need RT-PMMA was be ductile so that crack grows was stable and I can control it. Do you know...
20 February 2014 1,588 4 View
How can I obtain yield stress and module of elastic of polymer in tensile test? I read astm D638 but I don't know how I can determine them if my polymer have a few non-linearity.
16 February 2014 3,121 6 View
I want use the data of tensile test of a material to determine fracture toughness of a material. What information do I need? Is it possible?
16 February 2014 3,366 11 View
I want to test toughened PMMA with CT specimen but I don't have any experience about it. The ASTM say B (thickness) should was be smaller than 2.5*(Kic/sigmay)**2 but h don't know how much B is...
31 December 2013 7,542 12 View
Stress intensity factor in abaqus
22 November 2013 4,022 3 View
