![2) Abar is subjected to a tensile load of 20 ''kN''. The central section is 30 '' mm'' square cross-section; the other portions are of circular section; their diameters being indicated. (a) 2) Abar is subjected to a tensile load of 20 ''kN''. The central section is 30 '' mm'' square cross-section; the other portions are of circular section; their diameters being indicated. (a)](https://homework.study.com/cimages/multimages/16/capture_55040426538306920619.jpg)
2) Abar is subjected to a tensile load of 20 ''kN''. The central section is 30 '' mm'' square cross-section; the other portions are of circular section; their diameters being indicated. (a)
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Materials | Free Full-Text | Optimal Design and Competitive Spans of Timber Floor Joists Based on Multi-Parametric MINLP Optimization
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