Answer to Question #274720 in Mechanical Engineering for john luvis

Question

For the element described in Problem 10.36, determine the element nodal force vector as a result of the following prestress: sxx0 ¼ 800 psi, syy0 ¼ 500 psi, and sxy0 ¼ 750 psi. Assume the element to be in a state of plane strain. (take any triangular element or write formula only).

Answer 1

(i) 

= weight of oil/ volume

=40x10^3 / 4.5

= 8.889x10^3 N/m^3

(ii) 

P= specific weight /acceleration density 

P=8.889x10^3 / 9.81

P=906.1 kg/m^3

(iii) 

S=specific weight of oil/specific weight of water 

S=8.889x10^3/ 1000x9.81

S=0.906

(iv) 

v=1/P

v=1/906.1

=1.1036x10^-3 m^3/kg

(Provide the element of problem 10.36)