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

Belt and types of belt for transmission of power, Q.    What is belt? How m...

Q.    What is belt? How many types of belt are used for the transmission of power? Sol:   The power or rotary motion from one shaft to the other at a considerable distance is

Explain arc-welding processes, Arc-Welding Processes Arc-welding incl...

Arc-Welding Processes Arc-welding includes those welding processes wherein heat required for welding is derived from an arc powered by electrical energy, may be AC of DC as s

IDE101, Polygon law of forces

Polygon law of forces

What are the objectives of the earth pressure, What are the objectives of t...

What are the objectives of the earth pressure and retaining structures? After knowing all concepts about the same you should be able to learn: a. Know the field situations w

Strain, is strain in bending important parameter to consider?

is strain in bending important parameter to consider?

Ignition system-electrical system , Ignition System: The ignition system i...

Ignition System: The ignition system is a source and a means of initial spark required to start burning of fuel. A very high voltage supplied at the spark plug tip causes this spa

Calculate stress in the bolts, A new high temperature alloy has been dev...

A new high temperature alloy has been developed with creep properties as follows: stress exponent, m = 4.5, activation energy, Q = 110,000 J/mol and pre-exponential constant,

Fracture mechanics, difference between stress intensity factor and stress c...

difference between stress intensity factor and stress concentration factor

Evaluate the work done by the gas during the expansion, (a) What do you und...

(a) What do you understand by the following : (i) Open System (ii) Closed System (iii) Concept of ‘Work' (b) 0.014 m 3 gas at a pressure of 2070 KPa expends to a pressure of

Evaluate the stress in the bolt, (a) A steel bolt 650 mm 2 cross-sectional...

(a) A steel bolt 650 mm 2 cross-sectional area passes centrally through a copper tube to 1200mm 2 cross-sectional area. The tube is 500mm long and closed by rigid washers, which

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