Mechanics of Materials Exam 1 Questions With Correct Answers

Mechanics /




of
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Materials
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Exam 1 Questions With Correct Answers
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Strength //- //CORRECT //ANSWERS(S)✔✔The //ability //to //withstand //stresses //without //failure



Stability //- //CORRECT //ANSWERS(S)✔✔The //ability //to //resist //buckling //or //collapse



Stifness //- //CORRECT //ANSWERS(S)✔✔The //ability //to //resist //deformation



static /
/equilibrium //- /


/CORRECT /


/ANSWERS(S)✔✔A /


/condition /


/where /


/there /


/are /


/no /


/net //external //forces //acting //upon //a //particle //or //rigid //body //and //the //body //remains //at //rest.




Normal /
/Stress //- /


/CORRECT /


/ANSWERS(S)✔✔σ, /


/the /


/intensity /

, /of /
/axial //force, //calculated //as //force //divided //by //the //CSA //that //is //perpendicular //to //the //force.




Shear /
/Stress //- /


/CORRECT //ANSWERS(S)✔✔τ, //calculated //as //force //divided //by //the //CSA //parallel //to //the //force




Bearing /
/stress //- /


/CORRECT /


/ANSWERS(S)✔✔Contact //pressure //between //2 //bodies, //calculated //the //same //way //as //normal


//stress




Normal /
/Strain //- /


/CORRECT /


/ANSWERS(S)✔✔The /


/elongation(+) /


/or //compression //(-) //of //a //material, //ε //= //length //of //deformation/initial //length, //unitless




Shear /
/Strain //- /


/CORRECT /


/ANSWERS(S)✔✔γ /


/(gamma), //the //distortion //of //a //body //or //angular //decrease //(+) //or //increase //(-)




Thermal /
/Strain //- /


/CORRECT /


/ANSWERS(S)✔✔The /


/elongation /


/or /


/compression /