Element stiffness matrices, Mechanical Engineering

Assignment Help:

Use three frame elements to analyse the frame structure as depicted in the image below subjected to combined loadings: a) a concentred load applied  on Element 1  at  its  1/3 length close to point B; and b) a uniformly-distributed loading applied on Element 2. The two beams are of identical material properties and cross-section as well as the same height of 2 in. 

1443_element stiffness matrices.png

(a) Use hand calculation or MS Excel Spreadsheet to determine:

  • the element stiffness matrices for each element;
  • the element nodal displacement vector for each element;
  • the element nodal force vector for each element;
  • the assembled global stiffness matrices for whole model;
  • the global nodal displacement vector for whole model;
  • the global nodal force vector for whole model;
  • the boundary conditions in the system;
  • the condensed matrix equations for the unknown displacements when applying the above-mentioned boundary conditions;
  • the unknown displacements;
  • the reaction forces and moments; and
  • the maximum stress in each element.

(b) Run two static analyses of this problem by using ANSYS APDL  or SolidWorks Simulation with 1) the same FE model done in a) and 2) use a three-element model by splitting Element 1 into two appropriately. Compare these numerical results obtained with those from hand calculation or spreadsheet done in (a) and write a short FEA report to summarize your analyse on this problem.


Related Discussions:- Element stiffness matrices

Kinematics, Kinematics: We have seen the various types of motions whic...

Kinematics: We have seen the various types of motions which may be undergone by particles and rigid bodies. You may be able to understand the relationships of displacement, ve

Fracture toughness of material of plate, Fracture toughness of material of ...

Fracture toughness of material of plate: A large thin plate carrying a crack of 70 mm at its centre is subjected to fluctuating stress cycle perpendicular to crack. s max = 7

Determine the heat capacity, A chemical works produces an aqueous effluent ...

A chemical works produces an aqueous effluent at above ambient temperature. The Environmental Agency insists that before the effluent is discharged to the river, it must be cooled.

Find length of belt, Find length of belt: Find length of belt which i...

Find length of belt: Find length of belt which is required to drive a pulley of 500mm diameter running parallel at the distance of 12m from driving pulley of diameter 1600m.

Kinetics of rigid bodies, Kinetics of Rigid Bodies: For the bodies und...

Kinetics of Rigid Bodies: For the bodies undergoing plane motion, a common scheme for solutions is to apply the equations of dynamic equilibrium as below. ∑ F x  = m a x

Machin of dynamics, Ask question Prove maximum fluctuation of energy ?E=2EC...

Ask question Prove maximum fluctuation of energy ?E=2ECS.

Determine the natural circular frequencies, The two-storey  frame shown in ...

The two-storey  frame shown in Figure Q4 is such  that  the self-mass may be considered to be located at the beam levels and the beams may be presumed to be rigid.  The self-mass (

Concept and application of limiting friction, Concept and application of li...

Concept and application of limiting friction: Sol.: The maximum value of frictional force that comes into play, when the body just begins to slide over the surface of the ot

Orthographic projections, Orthographic Projections: As you learned pre...

Orthographic Projections: As you learned previously about the theory of projection of points, planes and lines, the next significant is the projection of solids that have thre

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd