Post a New Question

Physics

posted by .

Tapered bar with end load
The small tapered bar BC has length L=0.1 m and is made of a homogeneous material with Young’s modulus E=10 GPa. The cross sectional area of the bar is slowly varying between A0=160 mm^2 (at B) and A0/2 (at C), as described by the function:

A(x)=A0/(1+(x/L))

The bar is fixed at B and a load P=8kN is applied at the free end C. Determine the total elongation, δ, of the bar. (in mm)

  • Physics -

    Please help!

  • Physics -

    -0.71 mm
    Problem 3) 184 MPA

    Anyone for Problem 1 and 2 please?

  • Physics -

    Thanks FLu!
    Yes, Problem 1+2 please?

  • Physics -

    Great thanks!
    Problem 1 and 2 please?

  • Physics -

    -0.71 mm is bad answer

  • Physics -

    RORO, it worked for me, there must be tolerance, try -0.73 and let me know if it work?

    Do you have problem 1 and 2?

  • Physics -

    Yes, must have something to do with tolerance RORO, try -0.73, there was technical issue before.

    RORO did you get problem 1 and 2 please?

  • Physics -

    Anyone for problem 1&2?

  • Physics -

    Ok, thanks. No, I hav not solution for 1 and 2!

  • Physics -

    Anyone Problem 1 and 2 please?

  • Physics -

    anybody have the solution of problem 1 and 2?

  • Physics -

    Anyone please?

  • Physics -

    Pretty please with sugar on top?

  • Physics -

    Yes, as this wannabe Anonymous sais, please help with glucose on top!

  • Physics -

    I figured out the first answer, it was very simple, just had to multiplicate density(kg/m^2) x area(m^2) x gravity(m/s^2)= (kg m/s^2)= (N)

    So:fx(x)=rho_1*g*A

    I don't understand why f depends on x

  • Physics -

    Anonymous, tried it out but it says rho_1 not allowed in answer. How did you manage?

  • Physics -

    rho_1 not permitted, please help!

  • Physics -

    same problem!

  • Physics -

    Problem 1 and 2 please?

  • Physics -

    The first answer for the first exercise should be: rho_1*g*A

    Try typing it, not copy/paste.

    rho_1 isn't allowed for L/2 to L

  • Physics -

    Thanks Anonymous now it worked.
    Have you had luck with Problem 2?

  • Physics -

    fx(x)=rho_2*g*A for L/2 to L

  • Physics -

    Thanks RORO, any luck with the second Problem set?

  • Physics -

    THanks guys, anybody managed other problem in 1 and 2?

  • Physics -

    I cannot understand the solution of f(x)=rho_1*g*A plz give the two words of question as a hints

  • Physics -

    I cannot understand the solution of f(x)=rho_1*g*A plz give the two words of question as a hints

  • Physics -

    Anybody had luck with other problem 1 and 2 please?

  • Physics -

    If you don't understand the solution then you have to read the exercises at least.

  • Physics -

    F10 is right. DO you have managed Problem 1 or 2 F10?

  • Physics -

    I read but I don't understand because some guys talking on one question and some guys talking on other question at the same time.

  • Physics -

    Anyone for Problem 1 and 2 please?

  • Physics -

    Rotating blade (body force in axial loading)
    A blade is fixed to a rigid rotor of radius R spinning at ω rad/sec around the vertical z-axis (see figure). Neglect the effects of gravity.



    4.
    5.Calculate the peak stress in the blade: σmaxn
    6.Calculate the blade elongation: δ
    7.Calculate the displacement of the blade mid-section: ux(L/2)
    8.Given:
    9.Young's modulus, E , mass density, ρ .
    · Constant cross sectional area, A
    · Rotor radius R , blade length L
    · Angular velocity ω
    (Hint: if you work in the non-inertial frame of the rotating blade, the d'Alembert force/unit volume is ρω2r along the +x direction)
    1. Try it:
    2. σmaxn=
    3.
    4. unanswered
    5.  
    6.
    7.
    8.
    1.
    2. Try it:
    3. δ=
    4.
    5. unanswered
    6.  
    7.
    8.
    9.
    1.
    2. Try it:
    3. ux(L/2)=
    4.
    5. unanswered
    6.  
    7.
    8.

     
     
     A blade is fixed to a rigid rotor of radius R spinning at ω rad/sec around the vertical z-axis (see figure). Neglect the effects of gravity.
    Calculate the peak stress in the blade: σmaxn
    Calculate the blade elongation: δ
    Calculate the displacement of the blade mid-section: ux(L/2)
    Given:
    Young's modulus, E , mass density, ρ .
    · Constant cross sectional area, A
    · Rotor radius R , blade length L
    · Angular velocity ω
    (Hint: if you work in the non-inertial frame of the rotating blade, the d'Alembert force/unit volume is ρω2r along the +x direction)
    plzzzzzzzzzzzzzzzz help.
     
     
     

  • Physics -

    Problem 1 and 2?

  • Physics -

    Please 1 and 2?

  • Physics -

    ANy further Problem 1 and 2 answers?

  • Physics -

    No, sorry was not succesful, any other had chance with problems 1 and 2?

  • Physics -

    Please other Problem 1 & 2!

  • Physics -

    Other problems in 1 and 2 please?

  • Physics -

    Help problem 1 and 2?

  • Physics -

    Given the displacement field, find the loading (inverse problem)
    The composite bar is composed of an inner core of cross sectional area A and a sleeve of cross sectional area . The Young's modulus of the sleeve is and the modulus of the core is . Under the effects of unknown distributed loading, , the bar is observed to deform. The measured displacement field in the bar is , where is a dimensional constant and is the length of the bar. The origin of the x-axis is at the fixed support,10M . The maximum magnitude (absolute value) of stress in the core is found to be Pa.
    plz help

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physic

    The bar in the figure has constant cross sectional area A . The top half of the bar is made of material 1 with mass density ro1 , and Young’s modulus E1 . The bottom half of the bar is made of material 2 with density ro2 and …
  2. physics

    bar subjected to gravity load (two segments) the bar in the fig has constant cross sectional area A .the top half of the bar is made of material with mass density and youngs module, the bottom half of the bar made of density and young …
  3. physics

    bar subjected to gravity load (two segments) the bar in the fig has constant cross sectional area A .the top half of the bar is made of material with mass density and youngs module, the bottom half of the bar made of density and young …
  4. physics

    bar subjected to gravity load (two segments) the bar in the fig has constant cross sectional area A .the top half of the bar is made of material with mass density and youngs module, the bottom half of the bar made of density and young …
  5. Physics

    The bar in the figure has constant cross sectional area A. The top half of the bar is made of material "1" with mass density ρ1, and Young’s modulus E1. The bottom half of the bar is made of material "2" with density ρ2 …
  6. Physics

    The bar in the figure has constant cross sectional area A. The top half of the bar is made of material "1" with mass density ρ1, and Young’s modulus E1. The bottom half of the bar is made of material "2" with density ρ2 …
  7. Physic

    The built-in composite bar BC of length L=2 m is composed of two materials with equal cross sectional area A = 100 mm2. The first material has elastic modulus E=1 GPa. The second material is twice as stiff, with a modulus of 2E or …
  8. PHYSIC

    The built-in composite bar BC of length L=2 m is composed of two materials with equal cross sectional area A = 100 mm2. The first material has elastic modulus E=1 GPa. The second material is twice as stiff, with a modulus of 2E or …
  9. physics

    A steel bar of length L=2 m, with modulus E=200 GPa and constant cross sectional area A=200 mm2 is constrained between two walls at its two ends A and B. A distributed axial load, fx(x)=−p0(1−3x2L), with p0=200 kN/m, is …
  10. Physic

    A bar has a constant cross sectional area A. The bar is devided in 2 segments segment 1 (1/3 of the bar) and segment 2 (2/3 of the bar). Segment 1 is made of a material with mass density ρ and Young's modulus E. Segment 2 is made …

More Similar Questions

Post a New Question