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SVTPerformance's Chain of Restaurants
Road Side Pub
engineers, i need your help with mechanics of materials
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<blockquote data-quote="xl2ockl3ottomx" data-source="post: 6735289" data-attributes="member: 22849"><p>whats up, i know there are some engineering students and engineers on here and i need some help. these two problems have been driving me crazy and i am just flat out stuck.</p><p></p><p>first one:</p><p>the question is: two cyclindrical rods, one of steel and the other brass, are joined at C and restrained by rigid supports at A and E. For the loading shown and knowing the E-steel=200 GPa and E-brass= 105GPa, determine the reactions at A and E and the deflection of C.</p><p> </p><p>the answers from the back of the book are:</p><p>Ra= 63.8kN left, Re=37.2kN left</p><p>C- 46.3μm right</p><p></p><p><img src="https://home.comcast.net/~xxl2ockl3ottomxx/egr help 1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>second question:</p><p>the question is: a 4ft concrete post is reinforced by four steel bars, each 3/4 in in diameter. knowing E-steel=29x10^6psi, α-steel = 6.5x10^-6 / degree F and E-concrete= 3.6x10^6 psi, α-concrete= 5.5x10^-6/ degree F, determine the normal stresses induced in the steel and concrete by a termperature rise of 80 degrees F.</p><p> </p><p>the concrete post is 8 x 8 inch and 4 ft tall. the steel bars are 3/4" in diameter and run the height of the post.</p><p></p><p>the answers from the back of the book are: </p><p>steel: -1.888x10^3 psi</p><p>concrete: 53.6 psi</p><p></p><p></p><p></p><p>thanks guys.</p><p>marc d</p></blockquote><p></p>
[QUOTE="xl2ockl3ottomx, post: 6735289, member: 22849"] whats up, i know there are some engineering students and engineers on here and i need some help. these two problems have been driving me crazy and i am just flat out stuck. first one: the question is: two cyclindrical rods, one of steel and the other brass, are joined at C and restrained by rigid supports at A and E. For the loading shown and knowing the E-steel=200 GPa and E-brass= 105GPa, determine the reactions at A and E and the deflection of C. the answers from the back of the book are: Ra= 63.8kN left, Re=37.2kN left C- 46.3μm right [img]https://home.comcast.net/~xxl2ockl3ottomxx/egr help 1.jpg[/img] second question: the question is: a 4ft concrete post is reinforced by four steel bars, each 3/4 in in diameter. knowing E-steel=29x10^6psi, α-steel = 6.5x10^-6 / degree F and E-concrete= 3.6x10^6 psi, α-concrete= 5.5x10^-6/ degree F, determine the normal stresses induced in the steel and concrete by a termperature rise of 80 degrees F. the concrete post is 8 x 8 inch and 4 ft tall. the steel bars are 3/4" in diameter and run the height of the post. the answers from the back of the book are: steel: -1.888x10^3 psi concrete: 53.6 psi thanks guys. marc d [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
engineers, i need your help with mechanics of materials
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