Question A steel beam with the cross-section shown is subjected to a moment of 50 kNm. Calculate the highest bending stress in the beam cross-section Select one: Ο Α. σιαε 179.94 MPa Ο Β. σπαε 89.95 MPa 180 mm O Comas 79.1 MPa 200 mm -X D. Omar 359.8 MPa 80 mm 100 mm 20:07 9
WG2ZN6 The Asker · Mechanical Engineering
Transcribed Image Text: A steel beam with the cross-section shown is subjected to a moment of 50 kNm. Calculate the highest bending stress in the beam cross-section Select one: Ο Α. σιαε 179.94 MPa Ο Β. σπαε 89.95 MPa 180 mm O Comas 79.1 MPa 200 mm -X D. Omar 359.8 MPa 80 mm 100 mm 20:07 9
More Transcribed Image Text: A steel beam with the cross-section shown is subjected to a moment of 50 kNm. Calculate the highest bending stress in the beam cross-section Select one: Ο Α. σιαε 179.94 MPa Ο Β. σπαε 89.95 MPa 180 mm O Comas 79.1 MPa 200 mm -X D. Omar 359.8 MPa 80 mm 100 mm 20:07 9
Community Answer
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given, Moment =50kNm{:[=50 xx10^(3)xx10^(3)N-mm],[=50 xx10^(6)N-mm]:}{:[sigma_(max)=(M)/(L)xx y],[ bar(y)=(A_(1)y_(1)-A_(2)y_(2))/(A_(1)-A_(2))],[=((200 xx100)xx100-(80 xx80)(10+(180)/(2)))/((200 xx100)-(180 xx80))],[ bar(y)=100mm],[I=I_(1)-I_(2)],[I_(1)=(b_(1)d_(1)3)/(12)+A_(1)h^(2)quad(:'h= bar(4)-y_(1))],[=(100 xx200^(3))/(12)+(100 xx200 xx0)=0 ... See the full answer