Question

Briefly answer

1). In an FE simulation with Abaqus, if the unit for the length is μm and the unit for the force is Netwon, what is the correct unit for the elastic modulus? Why?

11). What is a nonlinear elastic material?

12). The ratio of the initial bulk modulus to the shear modulus is 10,000 for a rubber. What is the rubber material’s Poisson’s ratio?

13). In a frictionless elastic contact between two cylinders with parallel axis, where does the maximum shear stress occur?

14). List two approaches used by Abaqus to simulate surface-based contact.

15). What is the option to use finite deformation in Abaqus/Standard?

Answer 1

Solution ie everything In Abaqus, there is no unit definition for Input and Output parameters is relative. The unit of output paremeter i dependent on the unit of parameters. ym so it should be converted mon and force is in Force is in a unut of Elastic E usle be in N/mm² MPa Input Here, length is in to or modules are the materials which 2. In non-linear Elastic materials These materials shows Stress-strain curve to become significantly non-linea at moderate to large retains their shape however not exactly of deformation strains a and there is a bit of P1 B I load) Non-linear > Elastic rone d (deform" )

3. K G = 10,000 we know E = 2G (144) E = 3K (1-24). * (sk (1.8)) = f(26 (1441)) 3 (1-90) (1424) X G 10,000 x 9 (1-94) = (1404) 2 15000 30000 of it of 14999 30,001 af -0.499 el = 14999 30,00 / Load (P) ñ 0.5 am, A when an are Parallel and that too frictionless contact, maximum Shear stress will always be at the point on contact the region of of two cylinders,

followed are s. General approaches that are (a) General contact algorithm which allows very simple definitions of contact with very few restrictions. (b) Contact pair algorithm which has more restrictions to the type of surfaces Involved. s turned out on, finite displacement module ě seen in visualization Module and when this disp. is set to value of 1.0 so no Exaggeration .
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